fix: add missing ThingsURL back (#440)

Signed-off-by: hykuan <hykuan1126@gmail.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,15 @@
+Pull request title should be `MF-XXX - description` or `NOISSUE - description` where XXX is ID of issue that this PR relate to.
+Please review the [CONTRIBUTING.md](./CONTRIBUTING.md) file for detailed contributing guidelines.
+
+### What does this do?
+
+### Which issue(s) does this PR fix/relate to?
+Put here `Resolves #XXX` to auto-close the issue that your PR fixes (if such)
+
+### List any changes that modify/break current functionality
+
+### Have you included tests for your changes?
+
+### Did you document any new/modified functionality?
+
+### Notes

.gitignore

@@ -1,4 +1,4 @@
 build
-*.pb.go
 
 site/
+

Gopkg.lock

@@ -3,130 +3,137 @@
 
 [[projects]]
   branch = "master"
+  digest = "1:6da51e5ec493ad2b44cb04129e2d0a068c8fb9bd6cb5739d199573558696bb94"
   name = "github.com/Azure/go-ansiterm"
   packages = [
     ".",
-    "winterm"
+    "winterm",
   ]
+  pruneopts = "UT"
   revision = "d6e3b3328b783f23731bc4d058875b0371ff8109"
 
 [[projects]]
+  digest = "1:bf42be3cb1519bf8018dfd99720b1005ee028d947124cab3ccf965da59381df6"
   name = "github.com/Microsoft/go-winio"
   packages = ["."]
+  pruneopts = "UT"
   revision = "7da180ee92d8bd8bb8c37fc560e673e6557c392f"
   version = "v0.4.7"
 
 [[projects]]
   branch = "master"
+  digest = "1:3721a10686511b80c052323423f0de17a8c06d417dbdd3b392b1578432a33aae"
   name = "github.com/Nvveen/Gotty"
   packages = ["."]
+  pruneopts = "UT"
   revision = "cd527374f1e5bff4938207604a14f2e38a9cf512"
 
 [[projects]]
+  digest = "1:320e7ead93de9fd2b0e59b50fd92a4d50c1f8ab455d96bc2eb083267453a9709"
   name = "github.com/asaskevich/govalidator"
   packages = ["."]
+  pruneopts = "UT"
   revision = "ccb8e960c48f04d6935e72476ae4a51028f9e22f"
   version = "v9"
 
 [[projects]]
   branch = "master"
+  digest = "1:d6afaeed1502aa28e80a4ed0981d570ad91b2579193404256ce672ed0a609e0d"
   name = "github.com/beorn7/perks"
   packages = ["quantile"]
-  revision = "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9"
-
-[[projects]]
-  name = "github.com/cenkalti/backoff"
-  packages = ["."]
-  revision = "61153c768f31ee5f130071d08fc82b85208528de"
-  version = "v1.1.0"
+  pruneopts = "UT"
+  revision = "3a771d992973f24aa725d07868b467d1ddfceafb"
 
 [[projects]]
   branch = "master"
+  digest = "1:35ac403a135b8a138870950720be1f0399e0a48387d4b5cca841b0ed8cf7a40b"
+  name = "github.com/buger/jsonparser"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "2cac668e8456b4284edb0715e17e2af02d3ec993"
+
+[[projects]]
+  digest = "1:2209584c0f7c9b68c23374e659357ab546e1b70eec2761f03280f69a8fd23d77"
+  name = "github.com/cenkalti/backoff"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "2ea60e5f094469f9e65adb9cd103795b73ae743e"
+  version = "v2.0.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:24310b2d7f85873dde28d21687a40f7eba239970827c6a5d68cb529c9803de3a"
   name = "github.com/cisco/senml"
   packages = ["."]
+  pruneopts = "UT"
   revision = "448c9510575e1dd6f780cb10addbad998cf80418"
 
 [[projects]]
   branch = "master"
+  digest = "1:fc8dbcc2a5de7c093e167828ebbdf551641761d2ad75431d3a167d467a264115"
   name = "github.com/containerd/continuity"
   packages = ["pathdriver"]
-  revision = "d8fb8589b0e8e85b8c8bbaa8840226d0dfeb7371"
+  pruneopts = "UT"
+  revision = "c6cef34830231743494fe2969284df7b82cc0ad0"
 
 [[projects]]
+  digest = "1:a2c1d0e43bd3baaa071d1b9ed72c27d78169b2b269f71c105ac4ba34b1be4a39"
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
+  pruneopts = "UT"
   revision = "346938d642f2ec3594ed81d874461961cd0faa76"
   version = "v1.1.0"
 
 [[projects]]
   branch = "master"
+  digest = "1:ca71cdedcb487a361fe2588afeb3d373c0dfe21feaac229270fd6de234bd3c5e"
   name = "github.com/dereulenspiegel/coap-mux"
   packages = ["."]
+  pruneopts = "UT"
   revision = "e137e310a99955be01d60b2237da89153ea40987"
 
 [[projects]]
+  digest = "1:76dc72490af7174349349838f2fe118996381b31ea83243812a97e5a0fd5ed55"
   name = "github.com/dgrijalva/jwt-go"
   packages = ["."]
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   version = "v3.2.0"
 
 [[projects]]
-  branch = "master"
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-    "api/types",
-    "api/types/blkiodev",
-    "api/types/container",
-    "api/types/filters",
-    "api/types/mount",
-    "api/types/network",
-    "api/types/registry",
-    "api/types/strslice",
-    "api/types/swarm",
-    "api/types/swarm/runtime",
-    "api/types/versions",
-    "opts",
-    "pkg/archive",
-    "pkg/fileutils",
-    "pkg/homedir",
-    "pkg/idtools",
-    "pkg/ioutils",
-    "pkg/jsonmessage",
-    "pkg/longpath",
-    "pkg/mount",
-    "pkg/pools",
-    "pkg/stdcopy",
-    "pkg/system",
-    "pkg/term",
-    "pkg/term/windows"
-  ]
-  revision = "72ba7f593fa4dbb628cf5ee83cd7daf955934cf5"
-
-[[projects]]
+  digest = "1:87dcb59127512b84097086504c16595cf8fef35b9e0bfca565dfc06e198158d7"
   name = "github.com/docker/go-connections"
   packages = ["nat"]
+  pruneopts = "UT"
   revision = "3ede32e2033de7505e6500d6c868c2b9ed9f169d"
   version = "v0.3.0"
 
 [[projects]]
+  digest = "1:6f82cacd0af5921e99bf3f46748705239b36489464f4529a1589bc895764fb18"
   name = "github.com/docker/go-units"
   packages = ["."]
-  revision = "0dadbb0345b35ec7ef35e228dabb8de89a65bf52"
-  version = "v0.3.2"
+  pruneopts = "UT"
+  revision = "47565b4f722fb6ceae66b95f853feed578a4a51c"
+  version = "v0.3.3"
 
 [[projects]]
   branch = "master"
+  digest = "1:f77ee3cd73cbf60434b4f72ec46a66773c555d46764399735b5f9a28505f3ece"
   name = "github.com/dustin/go-coap"
   packages = ["."]
+  pruneopts = "UT"
   revision = "ddcc80675fa42611359d91a6dfa5aa57fb90e72b"
 
 [[projects]]
-  name = "github.com/fsouza/go-dockerclient"
+  digest = "1:865079840386857c809b72ce300be7580cb50d3d3129ce11bf9aa6ca2bc1934a"
+  name = "github.com/fatih/color"
   packages = ["."]
-  revision = "ca33ff277b527ce11b793e62f9ba244129b01caf"
-  version = "v1.2.0"
+  pruneopts = "UT"
+  revision = "5b77d2a35fb0ede96d138fc9a99f5c9b6aef11b4"
+  version = "v1.7.0"
 
 [[projects]]
+  digest = "1:3fd00c9248f27f544a9bff7254adf110e1c791d067522025fcaac7528b55087a"
   name = "github.com/go-kit/kit"
   packages = [
     "endpoint",
@@ -134,264 +141,632 @@
     "metrics",
     "metrics/internal/lv",
     "metrics/prometheus",
-    "transport/http"
+    "transport/grpc",
+    "transport/http",
   ]
+  pruneopts = "UT"
   revision = "4dc7be5d2d12881735283bcab7352178e190fc71"
   version = "v0.6.0"
 
 [[projects]]
+  digest = "1:31a18dae27a29aa074515e43a443abfd2ba6deb6d69309d8d7ce789c45f34659"
   name = "github.com/go-logfmt/logfmt"
   packages = ["."]
+  pruneopts = "UT"
   revision = "390ab7935ee28ec6b286364bba9b4dd6410cb3d5"
   version = "v0.3.0"
 
 [[projects]]
+  digest = "1:7c2fd446293ff7799cc496d3446e674ee67902d119f244de645caf95dff1bb98"
+  name = "github.com/go-redis/redis"
+  packages = [
+    ".",
+    "internal",
+    "internal/consistenthash",
+    "internal/hashtag",
+    "internal/pool",
+    "internal/proto",
+    "internal/singleflight",
+    "internal/util",
+  ]
+  pruneopts = "UT"
+  revision = "f3bba01df2026fc865f7782948845db9cf44cf23"
+  version = "v6.14.1"
+
+[[projects]]
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   version = "v1.7.0"
 
 [[projects]]
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   version = "1.2"
 
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+  branch = "master"
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+    "internal/lru",
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+
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-  revision = "925541529c1fa6821df4e44ce2723319eb2be768"
-  version = "v1.0.0"
+  packages = [
+    "proto",
+    "ptypes",
+    "ptypes/any",
+    "ptypes/duration",
+    "ptypes/timestamp",
+  ]
+  pruneopts = "UT"
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 [[projects]]
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+  ]
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-    "hstore",
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+    "bson/builder",
+    "bson/decimal",
+    "bson/elements",
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+    "core/auth/internal/gssapi",
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+    "mongo/listdbopt",
+    "mongo/mongoopt",
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+  ]
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+
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     "encoders/builtin",
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+    "libcontainer/user",
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+    "docker/pkg/fileutils",
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+    "docker/pkg/longpath",
+    "docker/pkg/mount",
+    "docker/pkg/pools",
+    "docker/pkg/stdcopy",
+    "docker/pkg/system",
+    "docker/pkg/term",
+    "docker/pkg/term/windows",
+    "docker/types",
+    "docker/types/blkiodev",
+    "docker/types/container",
+    "docker/types/filters",
+    "docker/types/mount",
+    "docker/types/network",
+    "docker/types/registry",
+    "docker/types/strslice",
+    "docker/types/versions",
+  ]
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   version = "v0.8.0"
 
 [[projects]]
+  digest = "1:0028cb19b2e4c3112225cd871870f2d9cf49b9b4276531f03438a88e94be86fe"
   name = "github.com/pmezard/go-difflib"
   packages = ["difflib"]
+  pruneopts = "UT"
   revision = "792786c7400a136282c1664665ae0a8db921c6c2"
   version = "v1.0.0"
 
 [[projects]]
+  digest = "1:d14a5f4bfecf017cb780bdde1b6483e5deb87e12c332544d2c430eda58734bcb"
   name = "github.com/prometheus/client_golang"
   packages = [
     "prometheus",
-    "prometheus/promhttp"
+    "prometheus/promhttp",
   ]
+  pruneopts = "UT"
   revision = "c5b7fccd204277076155f10851dad72b76a49317"
   version = "v0.8.0"
 
 [[projects]]
   branch = "master"
+  digest = "1:32d10bdfa8f09ecf13598324dba86ab891f11db3c538b6a34d1c3b5b99d7c36b"
   name = "github.com/prometheus/client_model"
   packages = ["go"]
+  pruneopts = "UT"
   revision = "99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c"
 
 [[projects]]
   branch = "master"
+  digest = "1:e469cd65badf7694aeb44874518606d93c1d59e7735d3754ad442782437d3cc3"
   name = "github.com/prometheus/common"
   packages = [
     "expfmt",
     "internal/bitbucket.org/ww/goautoneg",
-    "model"
+    "model",
   ]
-  revision = "e4aa40a9169a88835b849a6efb71e05dc04b88f0"
+  pruneopts = "UT"
+  revision = "d811d2e9bf898806ecfb6ef6296774b13ffc314c"
 
 [[projects]]
   branch = "master"
+  digest = "1:570784e0ddbf67f14087c6d8cfb7b999b9c55e75518a755e88cb202566ea8a17"
   name = "github.com/prometheus/procfs"
   packages = [
     ".",
     "internal/util",
     "nfs",
-    "xfs"
+    "xfs",
   ]
-  revision = "54d17b57dd7d4a3aa092476596b3f8a933bde349"
+  pruneopts = "UT"
+  revision = "8b1c2da0d56deffdbb9e48d4414b4e674bd8083e"
 
 [[projects]]
+  branch = "master"
+  digest = "1:c9f218adb858f881ce84d0c3d6ad9f65b40d7f31c705c8f00b04106294cb006e"
+  name = "github.com/rubenv/sql-migrate"
+  packages = [
+    ".",
+    "sqlparse",
+  ]
+  pruneopts = "UT"
+  revision = "081fe17d19ff4e2dd9f5a0c1158e6bcf74da6906"
+
+[[projects]]
+  digest = "1:274f67cb6fed9588ea2521ecdac05a6d62a8c51c074c1fccc6a49a40ba80e925"
   name = "github.com/satori/go.uuid"
   packages = ["."]
+  pruneopts = "UT"
   revision = "f58768cc1a7a7e77a3bd49e98cdd21419399b6a3"
   version = "v1.2.0"
 
 [[projects]]
+  digest = "1:9e9193aa51197513b3abcb108970d831fbcf40ef96aa845c4f03276e1fa316d2"
   name = "github.com/sirupsen/logrus"
   packages = ["."]
+  pruneopts = "UT"
   revision = "c155da19408a8799da419ed3eeb0cb5db0ad5dbc"
   version = "v1.0.5"
 
 [[projects]]
+  digest = "1:f7805d1cc7776d00da2aa3dbacf85927e58e6dad630ba9f3ea5b92d719f96269"
   name = "github.com/sony/gobreaker"
   packages = ["."]
+  pruneopts = "UT"
   revision = "e9556a45379ef1da12e54847edb2fb3d7d566f36"
   version = "0.3.0"
 
 [[projects]]
+  digest = "1:645cabccbb4fa8aab25a956cbcbdf6a6845ca736b2c64e197ca7cbb9d210b939"
+  name = "github.com/spf13/cobra"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "ef82de70bb3f60c65fb8eebacbb2d122ef517385"
+  version = "v0.0.3"
+
+[[projects]]
+  digest = "1:9424f440bba8f7508b69414634aef3b2b3a877e522d8a4624692412805407bb7"
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
+  version = "v1.0.1"
+
+[[projects]]
+  digest = "1:7e8d267900c7fa7f35129a2a37596e38ed0f11ca746d6d9ba727980ee138f9f6"
   name = "github.com/stretchr/testify"
-  packages = ["assert"]
+  packages = [
+    "assert",
+    "require",
+  ]
+  pruneopts = "UT"
   revision = "12b6f73e6084dad08a7c6e575284b177ecafbc71"
   version = "v1.2.1"
 
 [[projects]]
+  digest = "1:03aa6e485e528acb119fb32901cf99582c380225fc7d5a02758e08b180cb56c3"
   name = "github.com/ugorji/go"
   packages = ["codec"]
-  revision = "9831f2c3ac1068a78f50999a30db84270f647af6"
-  version = "v1.1"
-
-[[projects]]
-  name = "go.uber.org/atomic"
-  packages = ["."]
-  revision = "8474b86a5a6f79c443ce4b2992817ff32cf208b8"
-  version = "v1.3.1"
-
-[[projects]]
-  name = "go.uber.org/multierr"
-  packages = ["."]
-  revision = "3c4937480c32f4c13a875a1829af76c98ca3d40a"
-  version = "v1.1.0"
-
-[[projects]]
-  name = "go.uber.org/zap"
-  packages = [
-    ".",
-    "buffer",
-    "internal/bufferpool",
-    "internal/color",
-    "internal/exit",
-    "zapcore"
-  ]
-  revision = "35aad584952c3e7020db7b839f6b102de6271f89"
-  version = "v1.7.1"
+  pruneopts = "UT"
+  revision = "b4c50a2b199d93b13dc15e78929cfb23bfdf21ab"
+  version = "v1.1.1"
 
 [[projects]]
   branch = "master"
+  digest = "1:7310f5459b88177d24e26c5ec7deb100b78ec03c0437d7a7aaec3c7eac333a55"
   name = "golang.org/x/crypto"
   packages = [
     "bcrypt",
     "blowfish",
-    "ssh/terminal"
+    "pbkdf2",
+    "ssh/terminal",
   ]
-  revision = "374053ea96cb300f8671b8d3b07edeeb06e203b4"
+  pruneopts = "UT"
+  revision = "2d027ae1dddd4694d54f7a8b6cbe78dca8720226"
 
 [[projects]]
   branch = "master"
+  digest = "1:49131f79ef90ca701638024267ba6e3b5cd0ce387e0b3ec79961a42430873db9"
   name = "golang.org/x/net"
   packages = [
     "context",
-    "context/ctxhttp"
+    "http/httpguts",
+    "http2",
+    "http2/hpack",
+    "idna",
+    "internal/timeseries",
+    "trace",
   ]
-  revision = "24dd3780ca4f75fed9f321890729414a4b5d3f13"
+  pruneopts = "UT"
+  revision = "f73e4c9ed3b7ebdd5f699a16a880c2b1994e50dd"
 
 [[projects]]
   branch = "master"
+  digest = "1:e0140c0c868c6e0f01c0380865194592c011fe521d6e12d78bfd33e756fe018a"
+  name = "golang.org/x/sync"
+  packages = ["semaphore"]
+  pruneopts = "UT"
+  revision = "1d60e4601c6fd243af51cc01ddf169918a5407ca"
+
+[[projects]]
+  branch = "master"
+  digest = "1:66e34aa65b83061616603ba83517a4523c7261e18afd01c769dd215614bf7d70"
   name = "golang.org/x/sys"
   packages = [
     "unix",
-    "windows"
+    "windows",
   ]
-  revision = "01acb38716e021ed1fc03a602bdb5838e1358c5e"
+  pruneopts = "UT"
+  revision = "7dfd1290c7917b7ba22824b9d24954ab3002fe24"
 
 [[projects]]
+  digest = "1:a2ab62866c75542dd18d2b069fec854577a20211d7c0ea6ae746072a1dccdd18"
+  name = "golang.org/x/text"
+  packages = [
+    "collate",
+    "collate/build",
+    "internal/colltab",
+    "internal/gen",
+    "internal/tag",
+    "internal/triegen",
+    "internal/ucd",
+    "language",
+    "secure/bidirule",
+    "transform",
+    "unicode/bidi",
+    "unicode/cldr",
+    "unicode/norm",
+    "unicode/rangetable",
+  ]
+  pruneopts = "UT"
+  revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
+  version = "v0.3.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:cd018653a358d4b743a9d3bee89e825521f2ab2f2ec0770164bf7632d8d73ab7"
+  name = "google.golang.org/genproto"
+  packages = ["googleapis/rpc/status"]
+  pruneopts = "UT"
+  revision = "86e600f69ee4704c6efbf6a2a40a5c10700e76c2"
+
+[[projects]]
+  digest = "1:bb5ad466f9c22e1d7f34537a408ca215ee192e759979723b2b5e3f26dc80fd1f"
+  name = "google.golang.org/grpc"
+  packages = [
+    ".",
+    "balancer",
+    "balancer/base",
+    "balancer/roundrobin",
+    "channelz",
+    "codes",
+    "connectivity",
+    "credentials",
+    "encoding",
+    "encoding/proto",
+    "grpclb/grpc_lb_v1/messages",
+    "grpclog",
+    "internal",
+    "keepalive",
+    "metadata",
+    "naming",
+    "peer",
+    "resolver",
+    "resolver/dns",
+    "resolver/passthrough",
+    "stats",
+    "status",
+    "tap",
+    "transport",
+  ]
+  pruneopts = "UT"
+  revision = "41344da2231b913fa3d983840a57a6b1b7b631a1"
+  version = "v1.12.0"
+
+[[projects]]
+  digest = "1:fa9a7c0ef59217bd22f32eb7cc027894d73f340a5633258cc079dec025db6a7f"
+  name = "gopkg.in/gorp.v1"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "c87af80f3cc5036b55b83d77171e156791085e2e"
+  version = "v1.7.1"
+
+[[projects]]
+  digest = "1:2d1fbdc6777e5408cabeb02bf336305e724b925ff4546ded0fa8715a7267922a"
+  name = "gopkg.in/inf.v0"
+  packages = ["."]
+  pruneopts = "UT"
+  revision = "d2d2541c53f18d2a059457998ce2876cc8e67cbf"
+  version = "v0.9.1"
+
+[[projects]]
+  digest = "1:784e96fed7cbc35a3fdefb802ed2f841c16dbc3cf6c02f6422cc94ff45d011fc"
   name = "gopkg.in/ory-am/dockertest.v3"
   packages = ["."]
-  revision = "15c8e8835bba04e0d7c2b57958ffe294d5e643dc"
-  version = "v3.1.6"
+  pruneopts = "UT"
+  revision = "2e92e7784b6fb199fd168aa46269a2f1b34f299e"
+  version = "v3.3.0"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "c1b28e90e21e838cec2d16c95d8eb414b5de9bbe9667acb01b5375db047cc6db"
+  input-imports = [
+    "github.com/asaskevich/govalidator",
+    "github.com/cisco/senml",
+    "github.com/dereulenspiegel/coap-mux",
+    "github.com/dgrijalva/jwt-go",
+    "github.com/dustin/go-coap",
+    "github.com/fatih/color",
+    "github.com/go-kit/kit/endpoint",
+    "github.com/go-kit/kit/log",
+    "github.com/go-kit/kit/metrics",
+    "github.com/go-kit/kit/metrics/prometheus",
+    "github.com/go-kit/kit/transport/grpc",
+    "github.com/go-kit/kit/transport/http",
+    "github.com/go-redis/redis",
+    "github.com/go-zoo/bone",
+    "github.com/gocql/gocql",
+    "github.com/gogo/protobuf/proto",
+    "github.com/golang/protobuf/proto",
+    "github.com/gorilla/websocket",
+    "github.com/hokaccha/go-prettyjson",
+    "github.com/influxdata/influxdb/client/v2",
+    "github.com/lib/pq",
+    "github.com/mongodb/mongo-go-driver/bson",
+    "github.com/mongodb/mongo-go-driver/mongo",
+    "github.com/mongodb/mongo-go-driver/mongo/findopt",
+    "github.com/nats-io/go-nats",
+    "github.com/prometheus/client_golang/prometheus",
+    "github.com/prometheus/client_golang/prometheus/promhttp",
+    "github.com/rubenv/sql-migrate",
+    "github.com/satori/go.uuid",
+    "github.com/sony/gobreaker",
+    "github.com/spf13/cobra",
+    "github.com/stretchr/testify/assert",
+    "github.com/stretchr/testify/require",
+    "golang.org/x/crypto/bcrypt",
+    "golang.org/x/net/context",
+    "google.golang.org/grpc",
+    "google.golang.org/grpc/codes",
+    "google.golang.org/grpc/status",
+    "gopkg.in/ory-am/dockertest.v3",
+  ]
   solver-name = "gps-cdcl"
   solver-version = 1

Gopkg.toml

@@ -6,17 +6,13 @@
   branch = "master"
   name = "github.com/cisco/senml"
 
-[[constraint]]
-  branch = "master"
-  name = "github.com/dereulenspiegel/coap-mux"
-
 [[constraint]]
   name = "github.com/dgrijalva/jwt-go"
   version = "3.2.0"
 
 [[constraint]]
-  branch = "master"
-  name = "github.com/dustin/go-coap"
+  name = "github.com/fatih/color"
+  version = "1.7.0"
 
 [[constraint]]
   name = "github.com/go-kit/kit"
@@ -28,11 +24,11 @@
 
 [[constraint]]
   name = "github.com/golang/protobuf"
-  version = "1.0.0"
+  version = "1.1.0"
 
 [[constraint]]
-  name = "github.com/jinzhu/gorm"
-  version = "1.9.1"
+  branch = "master"
+  name = "github.com/hokaccha/go-prettyjson"
 
 [[constraint]]
   branch = "master"
@@ -55,12 +51,12 @@
   version = "0.3.0"
 
 [[constraint]]
-  name = "github.com/stretchr/testify"
-  version = "1.2.1"
+  name = "github.com/spf13/cobra"
+  version = "0.0.3"
 
 [[constraint]]
-  name = "go.uber.org/zap"
-  version = "1.7.1"
+  name = "github.com/stretchr/testify"
+  version = "1.2.1"
 
 [[constraint]]
   branch = "master"
@@ -74,6 +70,30 @@
   name = "github.com/gorilla/websocket"
   version = "1.2.0"
 
+[[constraint]]
+  branch = "master"
+  name = "github.com/rubenv/sql-migrate"
+
+[[constraint]]
+  name = "github.com/influxdata/influxdb"
+  version = "1.5.2"
+
+[[constraint]]
+  name = "github.com/mongodb/mongo-go-driver"
+  version = "0.0.5"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/gocql/gocql"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/dereulenspiegel/coap-mux"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/dustin/go-coap"
+
 [prune]
   go-tests = true
   unused-packages = true

MAINTAINERS

@@ -7,7 +7,7 @@
 	
 	[[drasko]]
 	Name	= "Drasko DRASKOVIC"
-	Email	= "drasko.draskovic@mainflux.com"
+	Email	= "drasko@mainflux.com"
 	GitHub	= "drasko"
 
 # However, this role serves only in dead-lock events, or in a special and very rare cases
@@ -24,22 +24,23 @@
 
 [maintainers]
 
+	[[aleksandar]]
+	Name	= "Aleksandar NOVAKOVIC"
+	Email	= "aleksandar@mainflux.com"
+	GitHub	= "anovakovic01"
+ 
+ 	[[dusan]]
+	Name	= "Dusan BOROVCANIN"
+	Email	= "dusan@mainflux.com"
+	GitHub	= "dusanb94"
+
 	[[manuel]]
 	Name	= "Manuel IMPERIALE"
-	Email	= "manuel.imperiale@gmail.com"
+	Email	= "manuel@mainflux.com"
 	GitHub	= "manuIO"
 
-	[[janko]]
-	Name	= "Janko ISIDOROVIC"
-	Email	= "janko.isidorovic@mainflux.com"
-	GitHub	= "janko-isidorovic"
-
 	[[nikola]]
 	Name	= "Nikola MARCETIC"
-	Email	= "nikola.marcetic@mainflux.com"
+	Email	= "nikola@mainflux.com"
 	GitHub	= "nmarcetic"
-	
-	[[dejan]]
-	Name	= "Dejan MIJIC"
-	Email	= "dejan.mijic@mainflux.com"
-	GitHub	= "mijicd"
+

Makefile

@@ -1,6 +1,7 @@
 BUILD_DIR = build
-SERVICES = manager http normalizer ws
+SERVICES = users things http normalizer ws coap influxdb-writer influxdb-reader mongodb-writer mongodb-reader cassandra-writer cassandra-reader cli
 DOCKERS = $(addprefix docker_,$(SERVICES))
+DOCKERS_DEV = $(addprefix docker_dev_,$(SERVICES))
 CGO_ENABLED ?= 0
 GOOS ?= linux
 
@@ -9,34 +10,58 @@ define compile_service
 endef
 
 define make_docker
-	docker build --build-arg SVC_NAME=$(subst docker_,,$(1)) --tag=mainflux/$(subst docker_,,$(1)) -f docker/Dockerfile .
+	docker build --no-cache --build-arg SVC_NAME=$(subst docker_,,$(1)) --tag=mainflux/$(subst docker_,,$(1)) -f docker/Dockerfile .
 endef
 
-all: $(SERVICES)
+define make_docker_dev
+	docker build --build-arg SVC_NAME=$(subst docker_dev_,,$(1)) --tag=mainflux/$(subst docker_dev_,,$(1)) -f docker/Dockerfile.dev ./build
+endef
 
-.PHONY: all $(SERVICES) dockers latest release
+all: $(SERVICES) mqtt
+
+.PHONY: all $(SERVICES) dockers dockers_dev latest release mqtt
 
 clean:
 	rm -rf ${BUILD_DIR}
+	rm -rf mqtt/node_modules
 
 install:
 	cp ${BUILD_DIR}/* $(GOBIN)
 
-proto:
-	protoc --go_out=. *.proto
+test:
+	GOCACHE=off go test -v -race -tags test $(shell go list ./... | grep -v 'vendor\|cmd')
 
-$(SERVICES): proto
+proto:
+	protoc --go_out=plugins=grpc:. *.proto
+
+$(SERVICES):
 	$(call compile_service,$(@))
 
 $(DOCKERS):
 	$(call make_docker,$(@))
 
 dockers: $(DOCKERS)
+	docker build --tag=mainflux/dashflux -f dashflux/docker/Dockerfile dashflux
+	docker build --tag=mainflux/mqtt -f mqtt/Dockerfile .
+
+$(DOCKERS_DEV):
+	$(call make_docker_dev,$(@))
+
+dockers_dev: $(DOCKERS_DEV)
+
+mqtt:
+	cd mqtt && npm install
+
+define docker_push
+	for svc in $(SERVICES); do \
+		docker push mainflux/$$svc:$(1); \
+	done
+	docker push mainflux/dashflux:$(1)
+	docker push mainflux/mqtt:$(1)
+endef
 
 latest: dockers
-	for svc in $(SERVICES); do \
-		docker push mainflux/$$svc; \
-	done
+	$(call docker_push,latest)
 
 release:
 	$(eval version = $(shell git describe --abbrev=0 --tags))
@@ -44,5 +69,13 @@ release:
 	$(MAKE) dockers
 	for svc in $(SERVICES); do \
 		docker tag mainflux/$$svc mainflux/$$svc:$(version); \
-		docker push mainflux/$$svc:$(version); \
 	done
+	docker tag mainflux/dashflux mainflux/dashflux:$(version)
+	docker tag mainflux/mqtt mainflux/mqtt:$(version)
+	$(call docker_push,$(version))
+
+rundev:
+	cd scripts && ./run.sh
+
+run:
+	docker-compose -f docker/docker-compose.yml up

api.go

@@ -0,0 +1,20 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package mainflux
+
+// Response contains HTTP response specific methods.
+type Response interface {
+	// Code returns HTTP response code.
+	Code() int
+
+	// Headers returns map of HTTP headers with their values.
+	Headers() map[string]string
+
+	// Empty indicates if HTTP response has content.
+	Empty() bool
+}

cli/README.md

@@ -0,0 +1,87 @@
+# Mainflux CLI
+## Build
+From the project root:
+```
+make cli
+```
+
+## Usage
+### Service
+#### Get the service verison
+```
+mainflux-cli version
+```
+
+### User management
+#### Create User
+```
+mainflux-cli users create john.doe@email.com password
+```
+
+#### Login User
+```
+mainflux-cli users token john.doe@email.com password
+```
+
+### System Provisioning
+#### Provision Device
+```
+mainflux-cli things create '{"type":"device", "name":"nyDevice"}' <user_auth_token>
+```
+
+#### Provision Application
+```
+mainflux-cli things create '{"type":"app", "name":"nyDevice"}' <user_auth_token>
+```
+
+#### Retrieve All Things
+```
+mainflux-cli things get all --offset=1 --limit=5 <user_auth_token>
+```
+
+#### Retrieve Thing By ID
+```
+mainflux-cli things get <thing_id> --offset=1 --limit=5 <user_auth_token>
+```
+
+#### Remove Thing
+```
+mainflux-cli things delete <thing_id> <user_auth_token>
+```
+
+#### Provision Channel
+```
+mainflux-cli channels create '{"name":"nyChannel"}' <user_auth_token>
+```
+
+#### Retrieve All Channels
+```
+mainflux-cli channels get all --offset=1 --limit=5 <user_auth_token>
+```
+
+#### Retrievie Channel By ID
+```
+mainflux-cli channels get <channel_id> --offset=1 --limit=5 <user_auth_token>
+```
+
+#### Remove Channel
+```
+mainflux-cli channels delete <channel_id> <user_auth_token>
+```
+
+### Access control
+#### Connect Thing to a Channel
+```
+mainflux-cli things connect <thing_id> <channel_id> <user_auth_token>
+```
+
+#### Disconnect Things from a Channel
+```
+mainflux-cli things disconnect <thing_id> <channel_id> <user_auth_token>
+```
+
+### Messaging
+#### Send a message over HTTP
+```
+mainflux-cli msg send <channel_id> '[{"bn":"some-base-name:","bt":1.276020076001e+09, "bu":"A","bver":5, "n":"voltage","u":"V","v":120.1}, {"n":"current","t":-5,"v":1.2}, {"n":"current","t":-4,"v":1.3}]' <thing_auth_token>
+```

cli/channels.go

@@ -0,0 +1,133 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import (
+	"encoding/json"
+
+	mfxsdk "github.com/mainflux/mainflux/sdk/go"
+	"github.com/spf13/cobra"
+)
+
+var cmdChannels = []cobra.Command{
+	cobra.Command{
+		Use:   "create",
+		Short: "create <JSON_channel> <user_auth_token>",
+		Long:  `Creates new channel and generates it's UUID`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			var channel mfxsdk.Channel
+			if err := json.Unmarshal([]byte(args[0]), &channel); err != nil {
+				logError(err)
+				return
+			}
+
+			id, err := sdk.CreateChannel(channel, args[1])
+			if err != nil {
+				logError(err)
+				return
+			}
+
+			flush(id)
+		},
+	},
+	cobra.Command{
+		Use:   "get",
+		Short: "get all/<channel_id> <user_auth_token>",
+		Long:  `Gets list of all channels or gets channel by id`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if args[0] == "all" {
+				l, err := sdk.Channels(args[1], uint64(Offset), uint64(Limit))
+				if err != nil {
+					logError(err)
+					return
+				}
+
+				flush(l)
+				return
+			}
+
+			c, err := sdk.Channel(args[0], args[1])
+			if err != nil {
+				logError(err)
+				return
+			}
+
+			flush(c)
+		},
+	},
+	cobra.Command{
+		Use:   "update",
+		Short: "update <JSON_string> <user_auth_token>",
+		Long:  `Updates channel record`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 3 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			var channel mfxsdk.Channel
+			if err := json.Unmarshal([]byte(args[0]), &channel); err != nil {
+				logError(err)
+				return
+			}
+
+			if err := sdk.UpdateChannel(channel, args[1]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+	cobra.Command{
+		Use:   "delete",
+		Short: "delete <channel_id> <user_auth_token>",
+		Long:  `Delete channel by ID`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if err := sdk.DeleteChannel(args[0], args[1]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+}
+
+// NewChannelsCmd returns channels command.
+func NewChannelsCmd() *cobra.Command {
+	cmd := cobra.Command{
+		Use:   "channels",
+		Short: "Manipulation with channels",
+		Long:  `Manipulation with channels: create, delete or update channels`,
+		Run: func(cmd *cobra.Command, args []string) {
+			logUsage(cmd.Short)
+		},
+	}
+
+	for i := range cmdChannels {
+		cmd.AddCommand(&cmdChannels[i])
+	}
+
+	return &cmd
+}

cli/message.go

@@ -0,0 +1,48 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import "github.com/spf13/cobra"
+
+const contentTypeSenml = "application/senml+json"
+
+var cmdMessages = []cobra.Command{
+	cobra.Command{
+		Use:   "send",
+		Short: "send <channel_id> <JSON_string> <thing_token>",
+		Long:  `Sends message on the channel`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 3 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if err := sdk.SendMessage(args[0], args[1], args[2]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+}
+
+// NewMessagesCmd returns messages command.
+func NewMessagesCmd() *cobra.Command {
+	cmd := cobra.Command{
+		Use:   "msg",
+		Short: "Send or retrieve messages",
+		Long:  `Send or retrieve messages: control message flow on the channel`,
+	}
+
+	for i := range cmdMessages {
+		cmd.AddCommand(&cmdMessages[i])
+	}
+
+	return &cmd
+}

cli/sdk.go

@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import mfxsdk "github.com/mainflux/mainflux/sdk/go"
+
+// Keep SDK handle in global var
+var sdk mfxsdk.SDK
+
+// SetSDK sets mainflux SDK instance.
+func SetSDK(s mfxsdk.SDK) {
+	sdk = s
+}

cli/things.go

@@ -0,0 +1,170 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import (
+	"encoding/json"
+
+	mfxsdk "github.com/mainflux/mainflux/sdk/go"
+	"github.com/spf13/cobra"
+)
+
+const thingsEP = "things"
+
+var cmdThings = []cobra.Command{
+	cobra.Command{
+		Use:   "create",
+		Short: "create <JSON_thing> <user_auth_token>",
+		Long:  `Create new thing, generate his UUID and store it`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			var thing mfxsdk.Thing
+			if err := json.Unmarshal([]byte(args[0]), &thing); err != nil {
+				logError(err)
+				return
+			}
+
+			id, err := sdk.CreateThing(thing, args[1])
+			if err != nil {
+				logError(err)
+				return
+			}
+
+			flush(id)
+		},
+	},
+	cobra.Command{
+		Use:   "get",
+		Short: "get all/<thing_id> <user_auth_token>",
+		Long:  `Get all things or thing by id`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if args[0] == "all" {
+				l, err := sdk.Things(args[1], uint64(Offset), uint64(Limit))
+				if err != nil {
+					logError(err)
+					return
+				}
+				flush(l)
+				return
+			}
+
+			t, err := sdk.Thing(args[0], args[1])
+			if err != nil {
+				logError(err)
+				return
+			}
+
+			flush(t)
+		},
+	},
+	cobra.Command{
+		Use:   "delete",
+		Short: "delete <thing_id> <user_auth_token>",
+		Long:  `Removes thing from database`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if err := sdk.DeleteThing(args[0], args[1]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+	cobra.Command{
+		Use:   "update",
+		Short: "update <JSON_string> <user_auth_token>",
+		Long:  `Update thing record`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 3 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			var thing mfxsdk.Thing
+			if err := json.Unmarshal([]byte(args[0]), &thing); err != nil {
+				logError(err)
+				return
+			}
+
+			if err := sdk.UpdateThing(thing, args[1]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+	cobra.Command{
+		Use:   "connect",
+		Short: "connect <thing_id> <channel_id> <user_auth_token>",
+		Long:  `Connect thing to the channel`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 3 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if err := sdk.ConnectThing(args[0], args[1], args[2]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+	cobra.Command{
+		Use:   "disconnect",
+		Short: "disconnect <thing_id> <channel_id> <user_auth_token>",
+		Long:  `Disconnect thing to the channel`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 3 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			if err := sdk.DisconnectThing(args[0], args[1], args[2]); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+}
+
+// NewThingsCmd returns things command.
+func NewThingsCmd() *cobra.Command {
+	cmd := cobra.Command{
+		Use:   "things",
+		Short: "things <options>",
+		Long:  `Things handling: create, delete or update things`,
+		Run: func(cmd *cobra.Command, args []string) {
+			logUsage(cmd.Short)
+		},
+	}
+
+	for i := range cmdThings {
+		cmd.AddCommand(&cmdThings[i])
+	}
+
+	return &cmd
+}

cli/users.go

@@ -0,0 +1,79 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import (
+	mfxsdk "github.com/mainflux/mainflux/sdk/go"
+	"github.com/spf13/cobra"
+)
+
+var cmdUsers = []cobra.Command{
+	cobra.Command{
+		Use:   "create",
+		Short: "create <username> <password>",
+		Long:  `Creates new user`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			user := mfxsdk.User{
+				Email:    args[0],
+				Password: args[1],
+			}
+			if err := sdk.CreateUser(user); err != nil {
+				logError(err)
+				return
+			}
+
+			logOK()
+		},
+	},
+	cobra.Command{
+		Use:   "token",
+		Short: "token <username> <password>",
+		Long:  `Creates new token`,
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) != 2 {
+				logUsage(cmd.Short)
+				return
+			}
+
+			user := mfxsdk.User{
+				Email:    args[0],
+				Password: args[1],
+			}
+			token, err := sdk.CreateToken(user)
+			if err != nil {
+				logError(err)
+				return
+			}
+
+			flush(token)
+		},
+	},
+}
+
+// NewUsersCmd returns users command.
+func NewUsersCmd() *cobra.Command {
+	cmd := cobra.Command{
+		Use:   "users",
+		Short: "users create/token <email> <password>",
+		Long:  `Manages users in the system (create account or token)`,
+		Run: func(cmd *cobra.Command, args []string) {
+			logUsage(cmd.Short)
+		},
+	}
+
+	for i := range cmdUsers {
+		cmd.AddCommand(&cmdUsers[i])
+	}
+
+	return &cmd
+}

cli/utils.go

@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import (
+	"fmt"
+
+	"github.com/davecgh/go-spew/spew"
+	"github.com/fatih/color"
+)
+
+var (
+	// Limit query parameter
+	Limit uint = 10
+	// Offset query parameter
+	Offset uint
+)
+
+func flush(i interface{}) {
+	fmt.Printf("%s", color.BlueString(spew.Sdump(i)))
+}
+
+func logUsage(u string) {
+	fmt.Printf(color.YellowString("Usage:  %s\n"), u)
+}
+
+func logError(err error) {
+	fmt.Printf("%s\n", color.RedString(err.Error()))
+}
+
+func logOK() {
+	fmt.Printf("%s\n", color.GreenString("OK"))
+}

cli/version.go

@@ -0,0 +1,28 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package cli
+
+import "github.com/spf13/cobra"
+
+// NewVersionCmd returns version command.
+func NewVersionCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "version",
+		Short: "Get version of Mainflux Things Service",
+		Long:  `Mainflux server health check`,
+		Run: func(cmd *cobra.Command, args []string) {
+			v, err := sdk.Version()
+			if err != nil {
+				logError(err)
+				return
+			}
+
+			flush(v)
+		},
+	}
+}

cmd/cassandra-reader/main.go

@@ -0,0 +1,142 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/gocql/gocql"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/readers"
+	"github.com/mainflux/mainflux/readers/api"
+	"github.com/mainflux/mainflux/readers/cassandra"
+	thingsapi "github.com/mainflux/mainflux/things/api/grpc"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
+)
+
+const (
+	sep = ","
+
+	defLogLevel  = "error"
+	defPort      = "8180"
+	defCluster   = "127.0.0.1"
+	defKeyspace  = "mainflux"
+	defThingsURL = "localhost:8181"
+
+	envLogLevel  = "MF_CASSANDRA_READER_LOG_LEVEL"
+	envPort      = "MF_CASSANDRA_READER_PORT"
+	envCluster   = "MF_CASSANDRA_READER_DB_CLUSTER"
+	envKeyspace  = "MF_CASSANDRA_READER_DB_KEYSPACE"
+	envThingsURL = "MF_THINGS_URL"
+)
+
+type config struct {
+	logLevel  string
+	port      string
+	cluster   string
+	keyspace  string
+	thingsURL string
+}
+
+func main() {
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.logLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+
+	session := connectToCassandra(cfg.cluster, cfg.keyspace, logger)
+	defer session.Close()
+
+	conn := connectToThings(cfg.thingsURL, logger)
+	defer conn.Close()
+
+	tc := thingsapi.NewClient(conn)
+	repo := newService(session, logger)
+
+	errs := make(chan error, 2)
+
+	go startHTTPServer(repo, tc, cfg.port, errs, logger)
+
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("Cassandra reader service terminated: %s", err))
+}
+
+func loadConfig() config {
+	return config{
+		logLevel:  mainflux.Env(envLogLevel, defLogLevel),
+		port:      mainflux.Env(envPort, defPort),
+		cluster:   mainflux.Env(envCluster, defCluster),
+		keyspace:  mainflux.Env(envKeyspace, defKeyspace),
+		thingsURL: mainflux.Env(envThingsURL, defThingsURL),
+	}
+}
+
+func connectToCassandra(cluster, keyspace string, logger logger.Logger) *gocql.Session {
+	session, err := cassandra.Connect(strings.Split(cluster, sep), keyspace)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to Cassandra cluster: %s", err))
+		os.Exit(1)
+	}
+
+	return session
+}
+
+func connectToThings(url string, logger logger.Logger) *grpc.ClientConn {
+	conn, err := grpc.Dial(url, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to things service: %s", err))
+		os.Exit(1)
+	}
+
+	return conn
+}
+
+func newService(session *gocql.Session, logger logger.Logger) readers.MessageRepository {
+	repo := cassandra.New(session)
+	repo = api.LoggingMiddleware(repo, logger)
+	repo = api.MetricsMiddleware(
+		repo,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "cassandra",
+			Subsystem: "message_reader",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "cassandra",
+			Subsystem: "message_reader",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+
+	return repo
+}
+
+func startHTTPServer(repo readers.MessageRepository, tc mainflux.ThingsServiceClient, port string, errs chan error, logger logger.Logger) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("Cassandra reader service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, api.MakeHandler(repo, tc, "cassandra-reader"))
+}

cmd/cassandra-writer/main.go

@@ -0,0 +1,143 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/gocql/gocql"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/writers"
+	"github.com/mainflux/mainflux/writers/cassandra"
+	"github.com/nats-io/go-nats"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	queue = "cassandra-writer"
+	sep   = ","
+
+	defNatsURL  = nats.DefaultURL
+	defLogLevel = "error"
+	defPort     = "8180"
+	defCluster  = "127.0.0.1"
+	defKeyspace = "mainflux"
+
+	envNatsURL  = "MF_NATS_URL"
+	envLogLevel = "MF_CASSANDRA_WRITER_LOG_LEVEL"
+	envPort     = "MF_CASSANDRA_WRITER_PORT"
+	envCluster  = "MF_CASSANDRA_WRITER_DB_CLUSTER"
+	envKeyspace = "MF_CASSANDRA_WRITER_DB_KEYSPACE"
+)
+
+type config struct {
+	natsURL  string
+	logLevel string
+	port     string
+	cluster  string
+	keyspace string
+}
+
+func main() {
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.logLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+
+	nc := connectToNATS(cfg.natsURL, logger)
+	defer nc.Close()
+
+	session := connectToCassandra(cfg.cluster, cfg.keyspace, logger)
+	defer session.Close()
+
+	repo := newService(session, logger)
+	if err := writers.Start(nc, repo, queue, logger); err != nil {
+		logger.Error(fmt.Sprintf("Failed to create Cassandra writer: %s", err))
+	}
+
+	errs := make(chan error, 2)
+
+	go startHTTPServer(cfg.port, errs, logger)
+
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("Cassandra writer service terminated: %s", err))
+}
+
+func loadConfig() config {
+	return config{
+		natsURL:  mainflux.Env(envNatsURL, defNatsURL),
+		logLevel: mainflux.Env(envLogLevel, defLogLevel),
+		port:     mainflux.Env(envPort, defPort),
+		cluster:  mainflux.Env(envCluster, defCluster),
+		keyspace: mainflux.Env(envKeyspace, defKeyspace),
+	}
+}
+
+func connectToNATS(url string, logger logger.Logger) *nats.Conn {
+	nc, err := nats.Connect(url)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
+		os.Exit(1)
+	}
+
+	return nc
+}
+
+func connectToCassandra(cluster, keyspace string, logger logger.Logger) *gocql.Session {
+	session, err := cassandra.Connect(strings.Split(cluster, sep), keyspace)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to Cassandra cluster: %s", err))
+		os.Exit(1)
+	}
+
+	return session
+}
+
+func newService(session *gocql.Session, logger logger.Logger) writers.MessageRepository {
+	repo := cassandra.New(session)
+	repo = writers.LoggingMiddleware(repo, logger)
+	repo = writers.MetricsMiddleware(
+		repo,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "cassandra",
+			Subsystem: "message_writer",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "cassandra",
+			Subsystem: "message_writer",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+
+	return repo
+}
+
+func startHTTPServer(port string, errs chan error, logger logger.Logger) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("Cassandra writer service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, cassandra.MakeHandler())
+}

cmd/cli/main.go

@@ -0,0 +1,122 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"log"
+
+	"github.com/mainflux/mainflux/cli"
+	"github.com/mainflux/mainflux/sdk/go"
+	"github.com/spf13/cobra"
+)
+
+func main() {
+	msgContentType := string(sdk.CTJSONSenML)
+	sdkConf := sdk.Config{
+		BaseURL:           "http://localhost",
+		UsersPrefix:       "",
+		ThingsPrefix:      "",
+		HTTPAdapterPrefix: "http",
+		MsgContentType:    sdk.ContentType(msgContentType),
+		TLSVerification:   false,
+	}
+
+	// Root
+	var rootCmd = &cobra.Command{
+		Use: "mainflux-cli",
+		PersistentPreRun: func(cmd *cobra.Command, args []string) {
+			sdkConf.MsgContentType = sdk.ContentType(msgContentType)
+			s := sdk.NewSDK(sdkConf)
+			cli.SetSDK(s)
+		},
+	}
+
+	// API commands
+	versionCmd := cli.NewVersionCmd()
+	usersCmd := cli.NewUsersCmd()
+	thingsCmd := cli.NewThingsCmd()
+	channelsCmd := cli.NewChannelsCmd()
+	messagesCmd := cli.NewMessagesCmd()
+
+	// Root Commands
+	rootCmd.AddCommand(versionCmd)
+	rootCmd.AddCommand(usersCmd)
+	rootCmd.AddCommand(thingsCmd)
+	rootCmd.AddCommand(channelsCmd)
+	rootCmd.AddCommand(messagesCmd)
+
+	// Root Flags
+	rootCmd.PersistentFlags().StringVarP(
+		&sdkConf.BaseURL,
+		"mainflux-url",
+		"m",
+		sdkConf.BaseURL,
+		"Mainflux host URL",
+	)
+
+	rootCmd.PersistentFlags().StringVarP(
+		&sdkConf.UsersPrefix,
+		"users-prefix",
+		"u",
+		sdkConf.UsersPrefix,
+		"Mainflux users service prefix",
+	)
+
+	rootCmd.PersistentFlags().StringVarP(
+		&sdkConf.ThingsPrefix,
+		"things-prefix",
+		"t",
+		sdkConf.ThingsPrefix,
+		"Mainflux things service prefix",
+	)
+
+	rootCmd.PersistentFlags().StringVarP(
+		&sdkConf.HTTPAdapterPrefix,
+		"http-prefix",
+		"a",
+		sdkConf.HTTPAdapterPrefix,
+		"Mainflux http adapter prefix",
+	)
+
+	rootCmd.PersistentFlags().StringVarP(
+		&msgContentType,
+		"content-type",
+		"c",
+		msgContentType,
+		"Mainflux message content type",
+	)
+
+	rootCmd.PersistentFlags().BoolVarP(
+		&sdkConf.TLSVerification,
+		"insecure",
+		"i",
+		sdkConf.TLSVerification,
+		"Do not check for TLS cert",
+	)
+
+	// Client and Channels Flags
+	rootCmd.PersistentFlags().UintVarP(
+		&cli.Limit,
+		"limit",
+		"l",
+		100,
+		"limit query parameter",
+	)
+
+	rootCmd.PersistentFlags().UintVarP(
+		&cli.Offset,
+		"offset",
+		"o",
+		0,
+		"offset query parameter",
+	)
+
+	if err := rootCmd.Execute(); err != nil {
+		log.Fatal(err)
+	}
+}

cmd/coap/main.go

@@ -1,50 +1,101 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
 package main
 
 import (
 	"fmt"
+	"log"
+	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
 
+	gocoap "github.com/dustin/go-coap"
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/mainflux/mainflux"
 	"github.com/mainflux/mainflux/coap"
+	"github.com/mainflux/mainflux/coap/api"
 	"github.com/mainflux/mainflux/coap/nats"
+	logger "github.com/mainflux/mainflux/logger"
+	thingsapi "github.com/mainflux/mainflux/things/api/grpc"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
 
 	broker "github.com/nats-io/go-nats"
-	"go.uber.org/zap"
 )
 
 const (
-	port       int    = 5683
-	defNatsURL string = broker.DefaultURL
-	envNatsURL string = "COAP_ADAPTER_NATS_URL"
+	defPort      = "5683"
+	defNatsURL   = broker.DefaultURL
+	defThingsURL = "localhost:8181"
+	defLogLevel  = "error"
+
+	envPort      = "MF_COAP_ADAPTER_PORT"
+	envNatsURL   = "MF_NATS_URL"
+	envThingsURL = "MF_THINGS_URL"
+	envLogLevel  = "MF_COAP_ADAPTER_LOG_LEVEL"
 )
 
 type config struct {
-	Port    int
-	NatsURL string
+	port      string
+	natsURL   string
+	thingsURL string
+	logLevel  string
 }
 
 func main() {
 	cfg := loadConfig()
 
-	logger, _ := zap.NewProduction()
-	defer logger.Sync() // flushes buffer, if any
+	logger, err := logger.New(os.Stdout, cfg.logLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
 
-	nc := connectToNats(cfg, logger)
+	nc, err := broker.Connect(cfg.natsURL)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
+		os.Exit(1)
+	}
 	defer nc.Close()
 
-	pub := nats.NewMessagePublisher(nc)
-	ca := adapter.NewCoAPAdapter(logger, pub)
+	conn, err := grpc.Dial(cfg.thingsURL, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to users service: %s", err))
+		os.Exit(1)
+	}
+	defer conn.Close()
 
-	nc.Subscribe("src.http", ca.BridgeHandler)
-	nc.Subscribe("src.mqtt", ca.BridgeHandler)
+	cc := thingsapi.NewClient(conn)
+	respChan := make(chan string, 10000)
+	pubsub := nats.New(nc)
+	svc := coap.New(pubsub, respChan)
+	svc = api.LoggingMiddleware(svc, logger)
+
+	svc = api.MetricsMiddleware(
+		svc,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "coap_adapter",
+			Subsystem: "api",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "coap_adapter",
+			Subsystem: "api",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
 
 	errs := make(chan error, 2)
 
-	go func() {
-		coapAddr := fmt.Sprintf(":%d", cfg.Port)
-		errs <- ca.Serve(coapAddr)
-	}()
+	go startHTTPServer(cfg.port, logger, errs)
+	go startCOAPServer(cfg.port, svc, cc, respChan, logger, errs)
 
 	go func() {
 		c := make(chan os.Signal)
@@ -52,32 +103,27 @@ func main() {
 		errs <- fmt.Errorf("%s", <-c)
 	}()
 
-	c := <-errs
-	logger.Info("terminated", zap.String("error", c.Error()))
+	err = <-errs
+	logger.Error(fmt.Sprintf("CoAP adapter terminated: %s", err))
 }
 
-func loadConfig() *config {
-	return &config{
-		NatsURL: env(envNatsURL, defNatsURL),
-		Port:    port,
+func loadConfig() config {
+	return config{
+		thingsURL: mainflux.Env(envThingsURL, defThingsURL),
+		natsURL:   mainflux.Env(envNatsURL, defNatsURL),
+		port:      mainflux.Env(envPort, defPort),
+		logLevel:  mainflux.Env(envLogLevel, defLogLevel),
 	}
 }
 
-func env(key, fallback string) string {
-	value := os.Getenv(key)
-	if value == "" {
-		return fallback
-	}
-
-	return value
+func startHTTPServer(port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("CoAP service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, api.MakeHTTPHandler())
 }
 
-func connectToNats(cfg *config, logger *zap.Logger) *broker.Conn {
-	nc, err := broker.Connect(cfg.NatsURL)
-	if err != nil {
-		logger.Error("Failed to connect to NATS", zap.Error(err))
-		os.Exit(1)
-	}
-
-	return nc
+func startCOAPServer(port string, svc coap.Service, auth mainflux.ThingsServiceClient, respChan chan<- string, l logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	l.Info(fmt.Sprintf("CoAP adapter service started, exposed port %s", port))
+	errs <- gocoap.ListenAndServe("udp", p, api.MakeCOAPHandler(svc, auth, l, respChan))
 }

cmd/http/main.go

@@ -1,7 +1,15 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
 package main
 
 import (
 	"fmt"
+	"log"
 	"net/http"
 	"os"
 	"os/signal"
@@ -12,35 +20,39 @@ import (
 	adapter "github.com/mainflux/mainflux/http"
 	"github.com/mainflux/mainflux/http/api"
 	"github.com/mainflux/mainflux/http/nats"
-	log "github.com/mainflux/mainflux/logger"
-	manager "github.com/mainflux/mainflux/manager/client"
+	"github.com/mainflux/mainflux/logger"
+	thingsapi "github.com/mainflux/mainflux/things/api/grpc"
 	broker "github.com/nats-io/go-nats"
 	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
 )
 
 const (
-	defPort       string = "8180"
-	defNatsURL    string = broker.DefaultURL
-	defManagerURL string = "http://localhost:8180"
-	envPort       string = "MF_HTTP_ADAPTER_PORT"
-	envNatsURL    string = "MF_NATS_URL"
-	envManagerURL string = "MF_MANAGER_URL"
+	defPort      string = "8180"
+	defLogLevel  string = "error"
+	defNatsURL   string = broker.DefaultURL
+	defThingsURL string = "localhost:8181"
+	envPort      string = "MF_HTTP_ADAPTER_PORT"
+	envLogLevel  string = "MF_HTTP_ADAPTER_LOG_LEVEL"
+	envNatsURL   string = "MF_NATS_URL"
+	envThingsURL string = "MF_THINGS_URL"
 )
 
 type config struct {
-	ManagerURL string
-	NatsURL    string
-	Port       string
+	ThingsURL string
+	NatsURL   string
+	LogLevel  string
+	Port      string
 }
 
 func main() {
-	cfg := config{
-		ManagerURL: mainflux.Env(envManagerURL, defManagerURL),
-		NatsURL:    mainflux.Env(envNatsURL, defNatsURL),
-		Port:       mainflux.Env(envPort, defPort),
-	}
 
-	logger := log.New(os.Stdout)
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
 
 	nc, err := broker.Connect(cfg.NatsURL)
 	if err != nil {
@@ -49,6 +61,14 @@ func main() {
 	}
 	defer nc.Close()
 
+	conn, err := grpc.Dial(cfg.ThingsURL, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to things service: %s", err))
+		os.Exit(1)
+	}
+	defer conn.Close()
+
+	cc := thingsapi.NewClient(conn)
 	pub := nats.NewMessagePublisher(nc)
 
 	svc := adapter.New(pub)
@@ -73,9 +93,8 @@ func main() {
 
 	go func() {
 		p := fmt.Sprintf(":%s", cfg.Port)
-		mc := manager.NewClient(cfg.ManagerURL)
 		logger.Info(fmt.Sprintf("HTTP adapter service started, exposed port %s", cfg.Port))
-		errs <- http.ListenAndServe(p, api.MakeHandler(svc, mc))
+		errs <- http.ListenAndServe(p, api.MakeHandler(svc, cc))
 	}()
 
 	go func() {
@@ -87,3 +106,13 @@ func main() {
 	err = <-errs
 	logger.Error(fmt.Sprintf("HTTP adapter terminated: %s", err))
 }
+
+func loadConfig() config {
+	return config{
+		ThingsURL: mainflux.Env(envThingsURL, defThingsURL),
+		NatsURL:   mainflux.Env(envNatsURL, defNatsURL),
+		LogLevel:  mainflux.Env(envLogLevel, defLogLevel),
+		Port:      mainflux.Env(envPort, defPort),
+	}
+
+}

cmd/influxdb-reader/main.go

@@ -0,0 +1,148 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	influxdata "github.com/influxdata/influxdb/client/v2"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/readers"
+	"github.com/mainflux/mainflux/readers/api"
+	"github.com/mainflux/mainflux/readers/influxdb"
+	thingsapi "github.com/mainflux/mainflux/things/api/grpc"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
+)
+
+const (
+	defThingsURL = "localhost:8181"
+	defLogLevel  = "error"
+	defPort      = "8180"
+	defDBName    = "mainflux"
+	defDBHost    = "localhost"
+	defDBPort    = "8086"
+	defDBUser    = "mainflux"
+	defDBPass    = "mainflux"
+
+	envThingsURL = "MF_THINGS_URL"
+	envLogLevel  = "MF_INFLUX_READER_LOG_LEVEL"
+	envPort      = "MF_INFLUX_READER_PORT"
+	envDBName    = "MF_INFLUX_READER_DB_NAME"
+	envDBHost    = "MF_INFLUX_READER_DB_HOST"
+	envDBPort    = "MF_INFLUX_READER_DB_PORT"
+	envDBUser    = "MF_INFLUX_READER_DB_USER"
+	envDBPass    = "MF_INFLUX_READER_DB_PASS"
+)
+
+type config struct {
+	ThingsURL string
+	LogLevel  string
+	Port      string
+	DBName    string
+	DBHost    string
+	DBPort    string
+	DBUser    string
+	DBPass    string
+}
+
+func main() {
+	cfg, clientCfg := loadConfigs()
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+	conn := connectToThings(cfg.ThingsURL, logger)
+	defer conn.Close()
+
+	tc := thingsapi.NewClient(conn)
+
+	client, err := influxdata.NewHTTPClient(clientCfg)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to create InfluxDB client: %s", err))
+		os.Exit(1)
+	}
+	defer client.Close()
+
+	repo, err := influxdb.New(client, cfg.DBName)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to create InfluxDB writer: %s", err))
+		os.Exit(1)
+	}
+
+	errs := make(chan error, 2)
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	go startHTTPServer(repo, tc, cfg.Port, logger, errs)
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("InfluxDB writer service terminated: %s", err))
+}
+
+func loadConfigs() (config, influxdata.HTTPConfig) {
+	cfg := config{
+		ThingsURL: mainflux.Env(envThingsURL, defThingsURL),
+		LogLevel:  mainflux.Env(envLogLevel, defLogLevel),
+		Port:      mainflux.Env(envPort, defPort),
+		DBName:    mainflux.Env(envDBName, defDBName),
+		DBHost:    mainflux.Env(envDBHost, defDBHost),
+		DBPort:    mainflux.Env(envDBPort, defDBPort),
+		DBUser:    mainflux.Env(envDBUser, defDBUser),
+		DBPass:    mainflux.Env(envDBPass, defDBPass),
+	}
+
+	clientCfg := influxdata.HTTPConfig{
+		Addr:     fmt.Sprintf("http://%s:%s", cfg.DBHost, cfg.DBPort),
+		Username: cfg.DBUser,
+		Password: cfg.DBPass,
+	}
+
+	return cfg, clientCfg
+}
+
+func connectToThings(url string, logger logger.Logger) *grpc.ClientConn {
+	conn, err := grpc.Dial(url, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to things service: %s", err))
+		os.Exit(1)
+	}
+
+	return conn
+}
+
+func newService(client influxdata.Client, logger logger.Logger) readers.MessageRepository {
+	repo, _ := influxdb.New(client, "mainflux")
+	repo = api.LoggingMiddleware(repo, logger)
+	repo = api.MetricsMiddleware(
+		repo,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "influxdb",
+			Subsystem: "message_reader",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "influxdb",
+			Subsystem: "message_reader",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+
+	return repo
+}
+
+func startHTTPServer(repo readers.MessageRepository, tc mainflux.ThingsServiceClient, port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("InfluxDB reader service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, api.MakeHandler(repo, tc, "influxdb-reader"))
+}

cmd/influxdb-writer/main.go

@@ -0,0 +1,174 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"strconv"
+	"syscall"
+	"time"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	influxdata "github.com/influxdata/influxdb/client/v2"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/writers"
+	"github.com/mainflux/mainflux/writers/influxdb"
+	"github.com/nats-io/go-nats"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	queue = "influxdb-writer"
+
+	defNatsURL      = nats.DefaultURL
+	defLogLevel     = "error"
+	defPort         = "8180"
+	defBatchSize    = "5000"
+	defBatchTimeout = "5"
+	defDBName       = "mainflux"
+	defDBHost       = "localhost"
+	defDBPort       = "8086"
+	defDBUser       = "mainflux"
+	defDBPass       = "mainflux"
+
+	envNatsURL      = "MF_NATS_URL"
+	envLogLevel     = "MF_INFLUX_WRITER_LOG_LEVEL"
+	envPort         = "MF_INFLUX_WRITER_PORT"
+	envBatchSize    = "MF_INFLUX_WRITER_BATCH_SIZE"
+	envBatchTimeout = "MF_INFLUX_WRITER_BATCH_TIMEOUT"
+	envDBName       = "MF_INFLUX_WRITER_DB_NAME"
+	envDBHost       = "MF_INFLUX_WRITER_DB_HOST"
+	envDBPort       = "MF_INFLUX_WRITER_DB_PORT"
+	envDBUser       = "MF_INFLUX_WRITER_DB_USER"
+	envDBPass       = "MF_INFLUX_WRITER_DB_PASS"
+)
+
+type config struct {
+	NatsURL      string
+	LogLevel     string
+	Port         string
+	BatchSize    string
+	BatchTimeout string
+	DBName       string
+	DBHost       string
+	DBPort       string
+	DBUser       string
+	DBPass       string
+}
+
+func main() {
+	cfg, clientCfg := loadConfigs()
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+	nc, err := nats.Connect(cfg.NatsURL)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
+		os.Exit(1)
+	}
+	defer nc.Close()
+
+	client, err := influxdata.NewHTTPClient(clientCfg)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to create InfluxDB client: %s", err))
+		os.Exit(1)
+	}
+	defer client.Close()
+
+	batchTimeout, err := strconv.Atoi(cfg.BatchTimeout)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Invalid value for batch timeout: %s", err))
+		os.Exit(1)
+	}
+
+	batchSize, err := strconv.Atoi(cfg.BatchSize)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Invalid value of batch size: %s", err))
+		os.Exit(1)
+	}
+
+	timeout := time.Duration(batchTimeout) * time.Second
+	repo, err := influxdb.New(client, cfg.DBName, batchSize, timeout)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to create InfluxDB writer: %s", err))
+		os.Exit(1)
+	}
+
+	counter, latency := makeMetrics()
+	repo = writers.LoggingMiddleware(repo, logger)
+	repo = writers.MetricsMiddleware(repo, counter, latency)
+	if err := writers.Start(nc, repo, queue, logger); err != nil {
+		logger.Error(fmt.Sprintf("Failed to start message writer: %s", err))
+		os.Exit(1)
+	}
+
+	errs := make(chan error, 2)
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	go startHTTPService(cfg.Port, logger, errs)
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("InfluxDB writer service terminated: %s", err))
+}
+
+func loadConfigs() (config, influxdata.HTTPConfig) {
+	cfg := config{
+		NatsURL:      mainflux.Env(envNatsURL, defNatsURL),
+		LogLevel:     mainflux.Env(envLogLevel, defLogLevel),
+		Port:         mainflux.Env(envPort, defPort),
+		BatchSize:    mainflux.Env(envBatchSize, defBatchSize),
+		BatchTimeout: mainflux.Env(envBatchTimeout, defBatchTimeout),
+		DBName:       mainflux.Env(envDBName, defDBName),
+		DBHost:       mainflux.Env(envDBHost, defDBHost),
+		DBPort:       mainflux.Env(envDBPort, defDBPort),
+		DBUser:       mainflux.Env(envDBUser, defDBUser),
+		DBPass:       mainflux.Env(envDBPass, defDBPass),
+	}
+
+	clientCfg := influxdata.HTTPConfig{
+		Addr:     fmt.Sprintf("http://%s:%s", cfg.DBHost, cfg.DBPort),
+		Username: cfg.DBUser,
+		Password: cfg.DBPass,
+	}
+
+	return cfg, clientCfg
+}
+
+func makeMetrics() (*kitprometheus.Counter, *kitprometheus.Summary) {
+	counter := kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+		Namespace: "influxdb",
+		Subsystem: "message_writer",
+		Name:      "request_count",
+		Help:      "Number of database inserts.",
+	}, []string{"method"})
+
+	latency := kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+		Namespace: "influxdb",
+		Subsystem: "message_writer",
+		Name:      "request_latency_microseconds",
+		Help:      "Total duration of inserts in microseconds.",
+	}, []string{"method"})
+
+	return counter, latency
+}
+
+func startHTTPService(port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("InfluxDB writer service started, exposed port %s", p))
+	errs <- http.ListenAndServe(p, influxdb.MakeHandler())
+}

cmd/manager/main.go

@@ -1,108 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"net/http"
-	"os"
-	"os/signal"
-	"syscall"
-
-	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
-	"github.com/mainflux/mainflux"
-	log "github.com/mainflux/mainflux/logger"
-	"github.com/mainflux/mainflux/manager"
-	"github.com/mainflux/mainflux/manager/api"
-	"github.com/mainflux/mainflux/manager/bcrypt"
-	"github.com/mainflux/mainflux/manager/jwt"
-	"github.com/mainflux/mainflux/manager/postgres"
-	stdprometheus "github.com/prometheus/client_golang/prometheus"
-)
-
-const (
-	defDBHost string = "localhost"
-	defDBPort string = "5432"
-	defDBUser string = "mainflux"
-	defDBPass string = "mainflux"
-	defDBName string = "manager"
-	defPort   string = "8180"
-	defSecret string = "manager"
-	envDBHost string = "MF_DB_HOST"
-	envDBPort string = "MF_DB_PORT"
-	envDBUser string = "MF_DB_USER"
-	envDBPass string = "MF_DB_PASS"
-	envDBName string = "MF_MANAGER_DB"
-	envPort   string = "MF_MANAGER_PORT"
-	envSecret string = "MF_MANAGER_SECRET"
-)
-
-type config struct {
-	DBHost string
-	DBPort string
-	DBUser string
-	DBPass string
-	DBName string
-	Port   string
-	Secret string
-}
-
-func main() {
-	cfg := config{
-		DBHost: mainflux.Env(envDBHost, defDBHost),
-		DBPort: mainflux.Env(envDBPort, defDBPort),
-		DBUser: mainflux.Env(envDBUser, defDBUser),
-		DBPass: mainflux.Env(envDBPass, defDBPass),
-		DBName: mainflux.Env(envDBName, defDBName),
-		Port:   mainflux.Env(envPort, defPort),
-		Secret: mainflux.Env(envSecret, defSecret),
-	}
-
-	logger := log.New(os.Stdout)
-
-	db, err := postgres.Connect(cfg.DBHost, cfg.DBPort, cfg.DBName, cfg.DBUser, cfg.DBPass)
-	if err != nil {
-		logger.Error(fmt.Sprintf("Failed to connect to postgres: %s", err))
-		os.Exit(1)
-	}
-	defer db.Close()
-
-	users := postgres.NewUserRepository(db)
-	clients := postgres.NewClientRepository(db)
-	channels := postgres.NewChannelRepository(db)
-	hasher := bcrypt.New()
-	idp := jwt.New(cfg.Secret)
-
-	svc := manager.New(users, clients, channels, hasher, idp)
-	svc = api.LoggingMiddleware(svc, logger)
-	svc = api.MetricsMiddleware(
-		svc,
-		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
-			Namespace: "manager",
-			Subsystem: "api",
-			Name:      "request_count",
-			Help:      "Number of requests received.",
-		}, []string{"method"}),
-		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
-			Namespace: "manager",
-			Subsystem: "api",
-			Name:      "request_latency_microseconds",
-			Help:      "Total duration of requests in microseconds.",
-		}, []string{"method"}),
-	)
-
-	errs := make(chan error, 2)
-
-	go func() {
-		p := fmt.Sprintf(":%s", cfg.Port)
-		logger.Info(fmt.Sprintf("Manager service started, exposed port %s", cfg.Port))
-		errs <- http.ListenAndServe(p, api.MakeHandler(svc))
-	}()
-
-	go func() {
-		c := make(chan os.Signal)
-		signal.Notify(c, syscall.SIGINT)
-		errs <- fmt.Errorf("%s", <-c)
-	}()
-
-	err = <-errs
-	logger.Error(fmt.Sprintf("Manager service terminated: %s", err))
-}

cmd/mongodb-reader/main.go

@@ -0,0 +1,141 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/readers"
+	"github.com/mainflux/mainflux/readers/api"
+	"github.com/mainflux/mainflux/readers/mongodb"
+	thingsapi "github.com/mainflux/mainflux/things/api/grpc"
+	"github.com/mongodb/mongo-go-driver/mongo"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
+)
+
+const (
+	defThingsURL = "localhost:8181"
+	defLogLevel  = "error"
+	defPort      = "8180"
+	defDBName    = "mainflux"
+	defDBHost    = "localhost"
+	defDBPort    = "27017"
+
+	envThingsURL = "MF_THINGS_URL"
+	envLogLevel  = "MF_MONGO_READER_LOG_LEVEL"
+	envPort      = "MF_MONGO_READER_PORT"
+	envDBName    = "MF_MONGO_READER_DB_NAME"
+	envDBHost    = "MF_MONGO_READER_DB_HOST"
+	envDBPort    = "MF_MONGO_READER_DB_PORT"
+)
+
+type config struct {
+	thingsURL string
+	logLevel  string
+	port      string
+	dbName    string
+	dbHost    string
+	dbPort    string
+}
+
+func main() {
+	cfg := loadConfigs()
+	logger, err := logger.New(os.Stdout, cfg.logLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+	conn := connectToThings(cfg.thingsURL, logger)
+	defer conn.Close()
+
+	tc := thingsapi.NewClient(conn)
+
+	db := connectToMongoDB(cfg.dbHost, cfg.dbPort, cfg.dbName, logger)
+
+	repo := newService(db, logger)
+
+	errs := make(chan error, 2)
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	go startHTTPServer(repo, tc, cfg.port, logger, errs)
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("MongoDB reader service terminated: %s", err))
+}
+
+func loadConfigs() config {
+	return config{
+		thingsURL: mainflux.Env(envThingsURL, defThingsURL),
+		logLevel:  mainflux.Env(envLogLevel, defLogLevel),
+		port:      mainflux.Env(envPort, defPort),
+		dbName:    mainflux.Env(envDBName, defDBName),
+		dbHost:    mainflux.Env(envDBHost, defDBHost),
+		dbPort:    mainflux.Env(envDBPort, defDBPort),
+	}
+}
+
+func connectToMongoDB(host, port, name string, logger logger.Logger) *mongo.Database {
+	client, err := mongo.Connect(context.Background(), fmt.Sprintf("mongodb://%s:%s", host, port), nil)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to database: %s", err))
+		os.Exit(1)
+	}
+
+	return client.Database(name)
+}
+
+func connectToThings(url string, logger logger.Logger) *grpc.ClientConn {
+	conn, err := grpc.Dial(url, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to things service: %s", err))
+		os.Exit(1)
+	}
+
+	return conn
+}
+
+func newService(db *mongo.Database, logger logger.Logger) readers.MessageRepository {
+	repo := mongodb.New(db)
+	repo = api.LoggingMiddleware(repo, logger)
+	repo = api.MetricsMiddleware(
+		repo,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "mongodb",
+			Subsystem: "message_reader",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "mongodb",
+			Subsystem: "message_reader",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+
+	return repo
+}
+
+func startHTTPServer(repo readers.MessageRepository, tc mainflux.ThingsServiceClient, port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("Mongo reader service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, api.MakeHandler(repo, tc, "cassandra-reader"))
+}

cmd/mongodb-writer/main.go

@@ -0,0 +1,132 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/writers"
+	"github.com/mainflux/mainflux/writers/mongodb"
+	"github.com/mongodb/mongo-go-driver/mongo"
+	"github.com/nats-io/go-nats"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	queue = "mongodb-writer"
+
+	defNatsURL  = nats.DefaultURL
+	defLogLevel = "error"
+	defPort     = "8180"
+	defDBName   = "mainflux"
+	defDBHost   = "localhost"
+	defDBPort   = "27017"
+
+	envNatsURL  = "MF_NATS_URL"
+	envLogLevel = "MF_MONGO_WRITER_LOG_LEVEL"
+	envPort     = "MF_MONGO_WRITER_PORT"
+	envDBName   = "MF_MONGO_WRITER_DB_NAME"
+	envDBHost   = "MF_MONGO_WRITER_DB_HOST"
+	envDBPort   = "MF_MONGO_WRITER_DB_PORT"
+)
+
+type config struct {
+	NatsURL  string
+	LogLevel string
+	Port     string
+	DBName   string
+	DBHost   string
+	DBPort   string
+}
+
+func main() {
+	cfg := loadConfigs()
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+	nc, err := nats.Connect(cfg.NatsURL)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
+		os.Exit(1)
+	}
+	defer nc.Close()
+
+	client, err := mongo.Connect(context.Background(), fmt.Sprintf("mongodb://%s:%s", cfg.DBHost, cfg.DBPort), nil)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to database: %s", err))
+		os.Exit(1)
+	}
+
+	db := client.Database(cfg.DBName)
+	repo := mongodb.New(db)
+
+	counter, latency := makeMetrics()
+	repo = writers.LoggingMiddleware(repo, logger)
+	repo = writers.MetricsMiddleware(repo, counter, latency)
+	if err := writers.Start(nc, repo, queue, logger); err != nil {
+		logger.Error(fmt.Sprintf("Failed to start message writer: %s", err))
+		os.Exit(1)
+	}
+
+	errs := make(chan error, 2)
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	go startHTTPService(cfg.Port, logger, errs)
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("MongoDB writer service terminated: %s", err))
+}
+
+func loadConfigs() config {
+	return config{
+		NatsURL:  mainflux.Env(envNatsURL, defNatsURL),
+		LogLevel: mainflux.Env(envLogLevel, defLogLevel),
+		Port:     mainflux.Env(envPort, defPort),
+		DBName:   mainflux.Env(envDBName, defDBName),
+		DBHost:   mainflux.Env(envDBHost, defDBHost),
+		DBPort:   mainflux.Env(envDBPort, defDBPort),
+	}
+}
+
+func makeMetrics() (*kitprometheus.Counter, *kitprometheus.Summary) {
+	counter := kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+		Namespace: "mongodb",
+		Subsystem: "message_writer",
+		Name:      "request_count",
+		Help:      "Number of database inserts.",
+	}, []string{"method"})
+
+	latency := kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+		Namespace: "mongodb",
+		Subsystem: "message_writer",
+		Name:      "request_latency_microseconds",
+		Help:      "Total duration of inserts in microseconds.",
+	}, []string{"method"})
+
+	return counter, latency
+}
+
+func startHTTPService(port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("Mongodb writer service started, exposed port %s", p))
+	errs <- http.ListenAndServe(p, mongodb.MakeHandler())
+}

cmd/normalizer/main.go

@@ -1,54 +1,84 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
 package main
 
 import (
 	"fmt"
+	"log"
 	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
 
 	"github.com/mainflux/mainflux"
-	log "github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/logger"
 	"github.com/mainflux/mainflux/normalizer"
-	nats "github.com/nats-io/go-nats"
+	"github.com/mainflux/mainflux/normalizer/api"
+	"github.com/mainflux/mainflux/normalizer/nats"
+	broker "github.com/nats-io/go-nats"
 
 	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
 	stdprometheus "github.com/prometheus/client_golang/prometheus"
 )
 
 const (
-	defNatsURL string = nats.DefaultURL
-	defPort    string = "8180"
-	envNatsURL string = "MF_NATS_URL"
-	envPort    string = "MF_NORMALIZER_PORT"
+	defNatsURL  string = broker.DefaultURL
+	defLogLevel string = "error"
+	defPort     string = "8180"
+	envNatsURL  string = "MF_NATS_URL"
+	envLogLevel string = "MF_NORMALIZER_LOG_LEVEL"
+	envPort     string = "MF_NORMALIZER_PORT"
 )
 
 type config struct {
-	NatsURL string
-	Port    string
+	NatsURL  string
+	LogLevel string
+	Port     string
 }
 
 func main() {
-	cfg := config{
-		NatsURL: mainflux.Env(envNatsURL, defNatsURL),
-		Port:    mainflux.Env(envPort, defPort),
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
 	}
-
-	logger := log.New(os.Stdout)
-
-	nc, err := nats.Connect(cfg.NatsURL)
+	nc, err := broker.Connect(cfg.NatsURL)
 	if err != nil {
 		logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
 		os.Exit(1)
 	}
 	defer nc.Close()
 
+	svc := normalizer.New()
+	svc = api.LoggingMiddleware(svc, logger)
+	svc = api.MetricsMiddleware(
+		svc,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "normalizer",
+			Subsystem: "api",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "normalizer",
+			Subsystem: "api",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+
 	errs := make(chan error, 2)
 
 	go func() {
 		p := fmt.Sprintf(":%s", cfg.Port)
 		logger.Info(fmt.Sprintf("Normalizer service started, exposed port %s", cfg.Port))
-		errs <- http.ListenAndServe(p, normalizer.MakeHandler())
+		errs <- http.ListenAndServe(p, api.MakeHandler())
 	}()
 
 	go func() {
@@ -57,22 +87,16 @@ func main() {
 		errs <- fmt.Errorf("%s", <-c)
 	}()
 
-	counter := kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
-		Namespace: "normalizer",
-		Subsystem: "api",
-		Name:      "request_count",
-		Help:      "Number of requests received.",
-	}, []string{"method"})
-
-	latency := kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
-		Namespace: "normalizer",
-		Subsystem: "api",
-		Name:      "request_latency_microseconds",
-		Help:      "Total duration of requests in microseconds.",
-	}, []string{"method"})
-
-	normalizer.Subscribe(nc, logger, counter, latency)
+	nats.Subscribe(svc, nc, logger)
 
 	err = <-errs
 	logger.Error(fmt.Sprintf("Normalizer service terminated: %s", err))
 }
+
+func loadConfig() config {
+	return config{
+		NatsURL:  mainflux.Env(envNatsURL, defNatsURL),
+		LogLevel: mainflux.Env(envLogLevel, defLogLevel),
+		Port:     mainflux.Env(envPort, defPort),
+	}
+}

cmd/things/main.go

@@ -0,0 +1,204 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"strconv"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/go-redis/redis"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/things"
+	"github.com/mainflux/mainflux/things/api"
+	grpcapi "github.com/mainflux/mainflux/things/api/grpc"
+	httpapi "github.com/mainflux/mainflux/things/api/http"
+	"github.com/mainflux/mainflux/things/postgres"
+	rediscache "github.com/mainflux/mainflux/things/redis"
+	"github.com/mainflux/mainflux/things/uuid"
+	usersapi "github.com/mainflux/mainflux/users/api/grpc"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
+)
+
+const (
+	defLogLevel  = "error"
+	defDBHost    = "localhost"
+	defDBPort    = "5432"
+	defDBUser    = "mainflux"
+	defDBPass    = "mainflux"
+	defDBName    = "things"
+	defCacheURL  = "localhost:6379"
+	defCachePass = ""
+	defCacheDB   = "0"
+	defHTTPPort  = "8180"
+	defGRPCPort  = "8181"
+	defUsersURL  = "localhost:8181"
+	envLogLevel  = "MF_THINGS_LOG_LEVEL"
+	envDBHost    = "MF_THINGS_DB_HOST"
+	envDBPort    = "MF_THINGS_DB_PORT"
+	envDBUser    = "MF_THINGS_DB_USER"
+	envDBPass    = "MF_THINGS_DB_PASS"
+	envDBName    = "MF_THINGS_DB"
+	envCacheURL  = "MF_THINGS_CACHE_URL"
+	envCachePass = "MF_THINGS_CACHE_PASS"
+	envCacheDB   = "MF_THINGS_CACHE_DB"
+	envHTTPPort  = "MF_THINGS_HTTP_PORT"
+	envGRPCPort  = "MF_THINGS_GRPC_PORT"
+	envUsersURL  = "MF_USERS_URL"
+)
+
+type config struct {
+	LogLevel  string
+	DBHost    string
+	DBPort    string
+	DBUser    string
+	DBPass    string
+	DBName    string
+	CacheURL  string
+	CachePass string
+	CacheDB   string
+	HTTPPort  string
+	GRPCPort  string
+	UsersURL  string
+}
+
+func main() {
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+	cache := connectToCache(cfg.CacheURL, cfg.CachePass, cfg.CacheDB, logger)
+
+	db := connectToDB(cfg, logger)
+	defer db.Close()
+
+	conn := connectToUsersService(cfg.UsersURL, logger)
+	defer conn.Close()
+
+	svc := newService(conn, db, cache, logger)
+	errs := make(chan error, 2)
+
+	go startHTTPServer(svc, cfg.HTTPPort, logger, errs)
+	go startGRPCServer(svc, cfg.GRPCPort, logger, errs)
+
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("Things service terminated: %s", err))
+}
+
+func loadConfig() config {
+	return config{
+		LogLevel:  mainflux.Env(envLogLevel, defLogLevel),
+		DBHost:    mainflux.Env(envDBHost, defDBHost),
+		DBPort:    mainflux.Env(envDBPort, defDBPort),
+		DBUser:    mainflux.Env(envDBUser, defDBUser),
+		DBPass:    mainflux.Env(envDBPass, defDBPass),
+		DBName:    mainflux.Env(envDBName, defDBName),
+		CacheURL:  mainflux.Env(envCacheURL, defCacheURL),
+		CachePass: mainflux.Env(envCachePass, defCachePass),
+		CacheDB:   mainflux.Env(envCacheDB, defCacheDB),
+		HTTPPort:  mainflux.Env(envHTTPPort, defHTTPPort),
+		GRPCPort:  mainflux.Env(envGRPCPort, defGRPCPort),
+		UsersURL:  mainflux.Env(envUsersURL, defUsersURL),
+	}
+}
+
+func connectToCache(cacheURL, cachePass string, cacheDB string, logger logger.Logger) *redis.Client {
+
+	db, err := strconv.Atoi(cacheDB)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to cache: %s", err))
+		os.Exit(1)
+	}
+
+	return redis.NewClient(&redis.Options{
+		Addr:     cacheURL,
+		Password: cachePass,
+		DB:       db,
+	})
+}
+
+func connectToDB(cfg config, logger logger.Logger) *sql.DB {
+	db, err := postgres.Connect(cfg.DBHost, cfg.DBPort, cfg.DBName, cfg.DBUser, cfg.DBPass)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to postgres: %s", err))
+		os.Exit(1)
+	}
+	return db
+}
+
+func connectToUsersService(usersAddr string, logger logger.Logger) *grpc.ClientConn {
+	conn, err := grpc.Dial(usersAddr, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to users service: %s", err))
+		os.Exit(1)
+	}
+	return conn
+}
+
+func newService(conn *grpc.ClientConn, db *sql.DB, client *redis.Client, logger logger.Logger) things.Service {
+	users := usersapi.NewClient(conn)
+	thingsRepo := postgres.NewThingRepository(db, logger)
+	channelsRepo := postgres.NewChannelRepository(db, logger)
+	chanCache := rediscache.NewChannelCache(client)
+	thingCache := rediscache.NewThingCache(client)
+	idp := uuid.New()
+
+	svc := things.New(users, thingsRepo, channelsRepo, chanCache, thingCache, idp)
+	svc = api.LoggingMiddleware(svc, logger)
+	svc = api.MetricsMiddleware(
+		svc,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "things",
+			Subsystem: "api",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "things",
+			Subsystem: "api",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+	return svc
+}
+
+func startHTTPServer(svc things.Service, port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("Things service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, httpapi.MakeHandler(svc))
+}
+
+func startGRPCServer(svc things.Service, port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	listener, err := net.Listen("tcp", p)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to listen on port %s: %s", port, err))
+	}
+	server := grpc.NewServer()
+	mainflux.RegisterThingsServiceServer(server, grpcapi.NewServer(svc))
+	logger.Info(fmt.Sprintf("Things gRPC service started, exposed port %s", port))
+	errs <- server.Serve(listener)
+}

cmd/users/main.go

@@ -0,0 +1,157 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/logger"
+	"github.com/mainflux/mainflux/users"
+	"github.com/mainflux/mainflux/users/api"
+	grpcapi "github.com/mainflux/mainflux/users/api/grpc"
+	httpapi "github.com/mainflux/mainflux/users/api/http"
+	"github.com/mainflux/mainflux/users/bcrypt"
+	"github.com/mainflux/mainflux/users/jwt"
+	"github.com/mainflux/mainflux/users/postgres"
+	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
+)
+
+const (
+	defLogLevel = "error"
+	defDBHost   = "localhost"
+	defDBPort   = "5432"
+	defDBUser   = "mainflux"
+	defDBPass   = "mainflux"
+	defDBName   = "users"
+	defHTTPPort = "8180"
+	defGRPCPort = "8181"
+	defSecret   = "users"
+	envLogLevel = "MF_USERS_LOG_LEVEL"
+	envDBHost   = "MF_USERS_DB_HOST"
+	envDBPort   = "MF_USERS_DB_PORT"
+	envDBUser   = "MF_USERS_DB_USER"
+	envDBPass   = "MF_USERS_DB_PASS"
+	envDBName   = "MF_USERS_DB"
+	envHTTPPort = "MF_USERS_HTTP_PORT"
+	envGRPCPort = "MF_USERS_GRPC_PORT"
+	envSecret   = "MF_USERS_SECRET"
+)
+
+type config struct {
+	LogLevel string
+	DBHost   string
+	DBPort   string
+	DBUser   string
+	DBPass   string
+	DBName   string
+	HTTPPort string
+	GRPCPort string
+	Secret   string
+}
+
+func main() {
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
+	}
+	db := connectToDB(cfg, logger)
+	defer db.Close()
+
+	svc := newService(db, cfg.Secret, logger)
+	errs := make(chan error, 2)
+
+	go startHTTPServer(svc, cfg.HTTPPort, logger, errs)
+	go startGRPCServer(svc, cfg.GRPCPort, logger, errs)
+
+	go func() {
+		c := make(chan os.Signal)
+		signal.Notify(c, syscall.SIGINT)
+		errs <- fmt.Errorf("%s", <-c)
+	}()
+
+	err = <-errs
+	logger.Error(fmt.Sprintf("Users service terminated: %s", err))
+}
+
+func loadConfig() config {
+	return config{
+		LogLevel: mainflux.Env(envLogLevel, defLogLevel),
+		DBHost:   mainflux.Env(envDBHost, defDBHost),
+		DBPort:   mainflux.Env(envDBPort, defDBPort),
+		DBUser:   mainflux.Env(envDBUser, defDBUser),
+		DBPass:   mainflux.Env(envDBPass, defDBPass),
+		DBName:   mainflux.Env(envDBName, defDBName),
+		HTTPPort: mainflux.Env(envHTTPPort, defHTTPPort),
+		GRPCPort: mainflux.Env(envGRPCPort, defGRPCPort),
+		Secret:   mainflux.Env(envSecret, defSecret),
+	}
+}
+
+func connectToDB(cfg config, logger logger.Logger) *sql.DB {
+	db, err := postgres.Connect(cfg.DBHost, cfg.DBPort, cfg.DBName, cfg.DBUser, cfg.DBPass)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to postgres: %s", err))
+		os.Exit(1)
+	}
+	return db
+}
+
+func newService(db *sql.DB, secret string, logger logger.Logger) users.Service {
+	repo := postgres.New(db)
+	hasher := bcrypt.New()
+	idp := jwt.New(secret)
+
+	svc := users.New(repo, hasher, idp)
+	svc = api.LoggingMiddleware(svc, logger)
+	svc = api.MetricsMiddleware(
+		svc,
+		kitprometheus.NewCounterFrom(stdprometheus.CounterOpts{
+			Namespace: "users",
+			Subsystem: "api",
+			Name:      "request_count",
+			Help:      "Number of requests received.",
+		}, []string{"method"}),
+		kitprometheus.NewSummaryFrom(stdprometheus.SummaryOpts{
+			Namespace: "users",
+			Subsystem: "api",
+			Name:      "request_latency_microseconds",
+			Help:      "Total duration of requests in microseconds.",
+		}, []string{"method"}),
+	)
+	return svc
+}
+
+func startHTTPServer(svc users.Service, port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	logger.Info(fmt.Sprintf("Users HTTP service started, exposed port %s", port))
+	errs <- http.ListenAndServe(p, httpapi.MakeHandler(svc, logger))
+}
+
+func startGRPCServer(svc users.Service, port string, logger logger.Logger, errs chan error) {
+	p := fmt.Sprintf(":%s", port)
+	listener, err := net.Listen("tcp", p)
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to listen on port %s: %s", port, err))
+	}
+	server := grpc.NewServer()
+	mainflux.RegisterUsersServiceServer(server, grpcapi.NewServer(svc))
+	logger.Info(fmt.Sprintf("Users gRPC service started, exposed port %s", port))
+	errs <- server.Serve(listener)
+}

cmd/ws/main.go

@@ -1,7 +1,15 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
 package main
 
 import (
 	"fmt"
+	"log"
 	"net/http"
 	"os"
 	"os/signal"
@@ -9,39 +17,41 @@ import (
 
 	kitprometheus "github.com/go-kit/kit/metrics/prometheus"
 	"github.com/mainflux/mainflux"
-	log "github.com/mainflux/mainflux/logger"
-	manager "github.com/mainflux/mainflux/manager/client"
+	"github.com/mainflux/mainflux/logger"
+	thingsapi "github.com/mainflux/mainflux/things/api/grpc"
 	adapter "github.com/mainflux/mainflux/ws"
 	"github.com/mainflux/mainflux/ws/api"
 	"github.com/mainflux/mainflux/ws/nats"
 	broker "github.com/nats-io/go-nats"
 	stdprometheus "github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
 )
 
 const (
-	defPort       = "8180"
-	defNatsURL    = broker.DefaultURL
-	defManagerURL = "http://localhost:8180"
-	envPort       = "MF_WS_ADAPTER_PORT"
-	envNatsURL    = "MF_NATS_URL"
-	envManagerURL = "MF_MANAGER_URL"
+	defPort      = "8180"
+	defLogLevel  = "error"
+	defNatsURL   = broker.DefaultURL
+	defThingsURL = "localhost:8181"
+	envPort      = "MF_WS_ADAPTER_PORT"
+	envLogLevel  = "MF_WS_ADAPTER_LOG_LEVEL"
+	envNatsURL   = "MF_NATS_URL"
+	envThingsURL = "MF_THINGS_URL"
 )
 
 type config struct {
-	ManagerURL string
-	NatsURL    string
-	Port       string
+	ThingsURL string
+	NatsURL   string
+	LogLevel  string
+	Port      string
 }
 
 func main() {
-	cfg := config{
-		ManagerURL: mainflux.Env(envManagerURL, defManagerURL),
-		NatsURL:    mainflux.Env(envNatsURL, defNatsURL),
-		Port:       mainflux.Env(envPort, defPort),
+	cfg := loadConfig()
+
+	logger, err := logger.New(os.Stdout, cfg.LogLevel)
+	if err != nil {
+		log.Fatalf(err.Error())
 	}
-
-	logger := log.New(os.Stdout)
-
 	nc, err := broker.Connect(cfg.NatsURL)
 	if err != nil {
 		logger.Error(fmt.Sprintf("Failed to connect to NATS: %s", err))
@@ -49,6 +59,14 @@ func main() {
 	}
 	defer nc.Close()
 
+	conn, err := grpc.Dial(cfg.ThingsURL, grpc.WithInsecure())
+	if err != nil {
+		logger.Error(fmt.Sprintf("Failed to connect to users service: %s", err))
+		os.Exit(1)
+	}
+	defer conn.Close()
+
+	cc := thingsapi.NewClient(conn)
 	pubsub := nats.New(nc)
 	svc := adapter.New(pubsub)
 	svc = api.LoggingMiddleware(svc, logger)
@@ -72,9 +90,8 @@ func main() {
 
 	go func() {
 		p := fmt.Sprintf(":%s", cfg.Port)
-		mc := manager.NewClient(cfg.ManagerURL)
 		logger.Info(fmt.Sprintf("WebSocket adapter service started, exposed port %s", cfg.Port))
-		errs <- http.ListenAndServe(p, api.MakeHandler(svc, mc, logger))
+		errs <- http.ListenAndServe(p, api.MakeHandler(svc, cc, logger))
 	}()
 
 	go func() {
@@ -86,3 +103,12 @@ func main() {
 	err = <-errs
 	logger.Error(fmt.Sprintf("WebSocket adapter terminated: %s", err))
 }
+
+func loadConfig() config {
+	return config{
+		ThingsURL: mainflux.Env(envThingsURL, defThingsURL),
+		NatsURL:   mainflux.Env(envNatsURL, defNatsURL),
+		LogLevel:  mainflux.Env(envLogLevel, defLogLevel),
+		Port:      mainflux.Env(envPort, defPort),
+	}
+}

coap/README.md

@@ -9,9 +9,12 @@ The service is configured using the environment variables presented in the
 following table. Note that any unset variables will be replaced with their
 default values.
 
-| Variable              | Description       | Default               |
-|-----------------------|-------------------|-----------------------|
-| COAP_ADAPTER_NATS_URL | NATS instance URL | nats://localhost:4222 |
+| Variable                  | Description            | Default               |
+|---------------------------|------------------------|-----------------------|
+| MF_COAP_ADAPTER_PORT      | Service listening port | 5683                  |
+| MF_NATS_URL               | NATS instance URL      | nats://localhost:4222 |
+| MF_THINGS_URL             | Things service URL     | localhost:8181        |
+| MF_COAP_ADAPTER_LOG_LEVEL | Service log level      | error                 |
 
 ## Deployment
 
@@ -22,31 +25,37 @@ a compose file template that can be used to deploy the service container locally
 version: "2"
 services:
   adapter:
-    image: mainflux/coap-adapter:[version]
+    image: mainflux/coap:[version]
     container_name: [instance name]
     ports:
-      - [host machine port]:5683
+      - [host machine port]:[configured port]
     environment:
-      COAP_ADAPTER_NATS_URL: [NATS instance URL]
+      MF_COAP_ADAPTER_PORT: [Service HTTP port]
+      MF_NATS_URL: [NATS instance URL]
+      MF_THINGS_URL: [Things service URL]
+      MF_COAP_ADAPTER_LOG_LEVEL: [Service log level]
 ```
 
+Running this service outside of container requires working instance of the NATS service.
 To start the service outside of the container, execute the following shell script:
 
 ```bash
 # download the latest version of the service
 go get github.com/mainflux/mainflux
 
-cd $GOPATH/src/github.com/mainflux/mainflux/cmd/coap
+cd $GOPATH/src/github.com/mainflux/mainflux
 
-# compile the app; make sure to set the proper GOOS value
-CGO_ENABLED=0 GOOS=[platform identifier] go build -ldflags "-s" -a -installsuffix cgo -o app
+# compile the http
+make coap
+
+# copy binary to bin
+make install
 
 # set the environment variables and run the service
-COAP_ADAPTER_NATS_URL=[NATS instance URL] app
+MF_THINGS_URL=[Things service URL] MF_NATS_URL=[NATS instance URL] MF_COAP_ADAPTER_PORT=[Service HTTP port] MF_COAP_ADAPTER_LOG_LEVEL=[Service log level] $GOBIN/mainflux-coap
 ```
 
 ## Usage
 
-For more information about service capabilities and its usage, please check out
-the [API documentation](swagger.yaml).
-
+Since CoAP protocol does not support `Authorization` header (option), in order to send CoAP messages,
+client valid `authorization` value must be present in `Uri-Query` option.

coap/adapter.go

@@ -1,61 +1,150 @@
-package adapter
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+// Package coap contains the domain concept definitions needed to support
+// Mainflux coap adapter service functionality. All constant values are taken
+// from RFC, and could be adjusted based on specific use case.
+package coap
 
 import (
-	"encoding/json"
-	"log"
-	"net"
+	"errors"
+	"sync"
+	"time"
 
-	"github.com/dustin/go-coap"
 	"github.com/mainflux/mainflux"
 	broker "github.com/nats-io/go-nats"
-	"go.uber.org/zap"
 )
 
-const protocol string = "coap"
+const (
+	chanID    = "id"
+	keyHeader = "key"
 
-type Observer struct {
-	conn    *net.UDPConn
-	addr    *net.UDPAddr
-	message *coap.Message
+	// AckRandomFactor is default ACK coefficient.
+	AckRandomFactor = 1.5
+	// AckTimeout is the amount of time to wait for a response.
+	AckTimeout = 2000 * time.Millisecond
+	// MaxRetransmit is the maximum number of times a message will be retransmitted.
+	MaxRetransmit = 4
+)
+
+var (
+	errBadOption = errors.New("bad option")
+	// ErrFailedMessagePublish indicates that message publishing failed.
+	ErrFailedMessagePublish = errors.New("failed to publish message")
+
+	// ErrFailedSubscription indicates that client couldn't subscribe to specified channel.
+	ErrFailedSubscription = errors.New("failed to subscribe to a channel")
+
+	// ErrFailedConnection indicates that service couldn't connect to message broker.
+	ErrFailedConnection = errors.New("failed to connect to message broker")
+)
+
+// Broker represents NATS broker instance.
+type Broker interface {
+	mainflux.MessagePublisher
+
+	// Subscribes to channel with specified id and adds subscription to
+	// service map of subscriptions under given ID.
+	Subscribe(uint64, string, *Observer) error
 }
 
-type CoAPAdapter struct {
-	obsMap map[string][]Observer
-	logger *zap.Logger
-	pub    mainflux.MessagePublisher
+// Service specifies coap service API.
+type Service interface {
+	Broker
+	// Unsubscribe method is used to stop observing resource.
+	Unsubscribe(string)
 }
 
-// NewCoAPAdapter creates new CoAP adapter struct
-func NewCoAPAdapter(logger *zap.Logger, pub mainflux.MessagePublisher) *CoAPAdapter {
-	ca := &CoAPAdapter{
-		logger: logger,
-		pub:    pub,
-		obsMap: make(map[string][]Observer),
+var _ Service = (*adapterService)(nil)
+
+type adapterService struct {
+	pubsub  Broker
+	obs     map[string]*Observer
+	obsLock sync.Mutex
+}
+
+// New instantiates the CoAP adapter implementation.
+func New(pubsub Broker, responses <-chan string) Service {
+	as := &adapterService{
+		pubsub:  pubsub,
+		obs:     make(map[string]*Observer),
+		obsLock: sync.Mutex{},
 	}
 
-	return ca
+	go as.listenResponses(responses)
+	return as
 }
 
-// Serve function starts CoAP server
-func (ca *CoAPAdapter) Serve(addr string) error {
-	ca.logger.Info("Starting CoAP server", zap.String("address", addr))
-	return coap.ListenAndServe("udp", addr, ca.COAPServer())
+func (svc *adapterService) get(obsID string) (*Observer, bool) {
+	svc.obsLock.Lock()
+	defer svc.obsLock.Unlock()
+
+	val, ok := svc.obs[obsID]
+	return val, ok
 }
 
-// BridgeHandler functions is a handler for messages received via NATS
-func (ca *CoAPAdapter) BridgeHandler(nm *broker.Msg) {
-	log.Printf("Received a message: %s\n", string(nm.Data))
+func (svc *adapterService) put(obsID string, o *Observer) {
+	svc.obsLock.Lock()
+	defer svc.obsLock.Unlock()
 
-	// And write it into the database
-	m := mainflux.RawMessage{}
-	if len(nm.Data) > 0 {
-		if err := json.Unmarshal(nm.Data, &m); err != nil {
-			log.Println("Can not decode adapter msg")
-			return
+	val, ok := svc.obs[obsID]
+	if ok {
+		close(val.Cancel)
+	}
+
+	svc.obs[obsID] = o
+}
+
+func (svc *adapterService) remove(obsID string) {
+	svc.obsLock.Lock()
+	defer svc.obsLock.Unlock()
+
+	val, ok := svc.obs[obsID]
+	if ok {
+		close(val.Cancel)
+		delete(svc.obs, obsID)
+	}
+}
+
+// ListenResponses method handles ACK messages received from client.
+func (svc *adapterService) listenResponses(responses <-chan string) {
+	for {
+		id := <-responses
+
+		val, ok := svc.get(id)
+		if ok {
+			val.StoreExpired(false)
+		}
+	}
+}
+
+func (svc *adapterService) Publish(msg mainflux.RawMessage) error {
+	if err := svc.pubsub.Publish(msg); err != nil {
+		switch err {
+		case broker.ErrConnectionClosed, broker.ErrInvalidConnection:
+			return ErrFailedConnection
+		default:
+			return ErrFailedMessagePublish
 		}
 	}
 
-	log.Println("Calling obsTransmit()")
-	log.Println(m.Publisher, m.Protocol, m.Channel, m.Payload)
-	ca.obsTransmit(m)
+	return nil
+}
+
+func (svc *adapterService) Subscribe(chanID uint64, obsID string, o *Observer) error {
+	if err := svc.pubsub.Subscribe(chanID, obsID, o); err != nil {
+		return ErrFailedSubscription
+	}
+
+	// Put method removes Observer if already exists.
+	svc.put(obsID, o)
+	return nil
+}
+
+func (svc *adapterService) Unsubscribe(obsID string) {
+	svc.remove(obsID)
 }

coap/api/doc.go

@@ -1,3 +1,10 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
 // Package api contains API-related concerns: endpoint definitions, middlewares
 // and all resource representations.
 package api

coap/api/logging.go

@@ -0,0 +1,66 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+// +build !test
+
+package api
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/coap"
+	log "github.com/mainflux/mainflux/logger"
+)
+
+var _ coap.Service = (*loggingMiddleware)(nil)
+
+type loggingMiddleware struct {
+	logger log.Logger
+	svc    coap.Service
+}
+
+// LoggingMiddleware adds logging facilities to the adapter.
+func LoggingMiddleware(svc coap.Service, logger log.Logger) coap.Service {
+	return &loggingMiddleware{logger, svc}
+}
+
+func (lm *loggingMiddleware) Publish(msg mainflux.RawMessage) (err error) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method publish to channel %d took %s to complete", msg.Channel, time.Since(begin))
+		if err != nil {
+			lm.logger.Warn(fmt.Sprintf("%s with error: %s.", message, err))
+			return
+		}
+		lm.logger.Info(fmt.Sprintf("%s without errors.", message))
+	}(time.Now())
+
+	return lm.svc.Publish(msg)
+}
+
+func (lm *loggingMiddleware) Subscribe(chanID uint64, obsID string, o *coap.Observer) (err error) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method subscribe to channel %d for client %s took %s to complete", chanID, obsID, time.Since(begin))
+		if err != nil {
+			lm.logger.Warn(fmt.Sprintf("%s with error: %s.", message, err))
+			return
+		}
+		lm.logger.Info(fmt.Sprintf("%s without errors.", message))
+	}(time.Now())
+
+	return lm.svc.Subscribe(chanID, obsID, o)
+}
+
+func (lm *loggingMiddleware) Unsubscribe(obsID string) {
+	defer func(begin time.Time) {
+		message := fmt.Sprintf("Method unsubscribe for the client %s took %s to complete without errors.", obsID, time.Since(begin))
+		lm.logger.Info(fmt.Sprintf(message))
+	}(time.Now())
+
+	lm.svc.Unsubscribe(obsID)
+}

coap/api/metrics.go

@@ -0,0 +1,62 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+// +build !test
+
+package api
+
+import (
+	"time"
+
+	"github.com/go-kit/kit/metrics"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/coap"
+)
+
+var _ coap.Service = (*metricsMiddleware)(nil)
+
+type metricsMiddleware struct {
+	counter metrics.Counter
+	latency metrics.Histogram
+	svc     coap.Service
+}
+
+// MetricsMiddleware instruments adapter by tracking request count and latency.
+func MetricsMiddleware(svc coap.Service, counter metrics.Counter, latency metrics.Histogram) coap.Service {
+	return &metricsMiddleware{
+		counter: counter,
+		latency: latency,
+		svc:     svc,
+	}
+}
+
+func (mm *metricsMiddleware) Publish(msg mainflux.RawMessage) error {
+	defer func(begin time.Time) {
+		mm.counter.With("method", "publish").Add(1)
+		mm.latency.With("method", "publish").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	return mm.svc.Publish(msg)
+}
+
+func (mm *metricsMiddleware) Subscribe(chanID uint64, clientID string, o *coap.Observer) error {
+	defer func(begin time.Time) {
+		mm.counter.With("method", "subscribe").Add(1)
+		mm.latency.With("method", "subscribe").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	return mm.svc.Subscribe(chanID, clientID, o)
+}
+
+func (mm *metricsMiddleware) Unsubscribe(clientID string) {
+	defer func(begin time.Time) {
+		mm.counter.With("method", "unsubscribe").Add(1)
+		mm.latency.With("method", "unsubscribe").Observe(time.Since(begin).Seconds())
+	}(time.Now())
+
+	mm.svc.Unsubscribe(clientID)
+}

coap/api/transport.go

@@ -0,0 +1,296 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package api
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/go-zoo/bone"
+	"github.com/mainflux/mainflux/coap"
+	log "github.com/mainflux/mainflux/logger"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	mux "github.com/dereulenspiegel/coap-mux"
+	gocoap "github.com/dustin/go-coap"
+	"github.com/mainflux/mainflux"
+)
+
+const protocol = "coap"
+
+var (
+	errBadRequest = errors.New("bad request")
+	errBadOption  = errors.New("bad option")
+	auth          mainflux.ThingsServiceClient
+	logger        log.Logger
+)
+
+type handler func(conn *net.UDPConn, addr *net.UDPAddr, msg *gocoap.Message) *gocoap.Message
+
+func notFoundHandler(l *net.UDPConn, a *net.UDPAddr, m *gocoap.Message) *gocoap.Message {
+	if m.IsConfirmable() {
+		return &gocoap.Message{
+			Type: gocoap.Acknowledgement,
+			Code: gocoap.NotFound,
+		}
+	}
+	return nil
+}
+
+//MakeHTTPHandler creates handler for version endpoint.
+func MakeHTTPHandler() http.Handler {
+	b := bone.New()
+	b.GetFunc("/version", mainflux.Version(protocol))
+	b.Handle("/metrics", promhttp.Handler())
+
+	return b
+}
+
+// MakeCOAPHandler creates handler for CoAP messages.
+func MakeCOAPHandler(svc coap.Service, tc mainflux.ThingsServiceClient, l log.Logger, responses chan<- string) gocoap.Handler {
+	auth = tc
+	logger = l
+
+	r := mux.NewRouter()
+	r.Handle("/channels/{id}/messages", gocoap.FuncHandler(receive(svc))).Methods(gocoap.POST)
+	r.Handle("/channels/{id}/messages", gocoap.FuncHandler(observe(svc, responses)))
+	r.NotFoundHandler = gocoap.FuncHandler(notFoundHandler)
+
+	return r
+}
+
+func authorize(msg *gocoap.Message, res *gocoap.Message, cid uint64) (uint64, error) {
+	// Device Key is passed as Uri-Query parameter, which option ID is 15 (0xf).
+	key, err := authKey(msg.Option(gocoap.URIQuery))
+	if err != nil {
+		switch err {
+		case errBadOption:
+			res.Code = gocoap.BadOption
+		case errBadRequest:
+			res.Code = gocoap.BadRequest
+		}
+
+		return 0, err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	id, err := auth.CanAccess(ctx, &mainflux.AccessReq{Token: key, ChanID: cid})
+
+	if err != nil {
+		e, ok := status.FromError(err)
+		if ok {
+			switch e.Code() {
+			case codes.PermissionDenied:
+				res.Code = gocoap.Forbidden
+			default:
+				res.Code = gocoap.ServiceUnavailable
+			}
+			return 0, err
+		}
+		res.Code = gocoap.InternalServerError
+	}
+	return id.GetValue(), nil
+}
+
+func receive(svc coap.Service) handler {
+	return func(conn *net.UDPConn, addr *net.UDPAddr, msg *gocoap.Message) *gocoap.Message {
+		// By default message is NonConfirmable, so
+		// NonConfirmable response is sent back.
+		res := &gocoap.Message{
+			Type: gocoap.NonConfirmable,
+			// According to https://tools.ietf.org/html/rfc7252#page-47: If the POST
+			// succeeds but does not result in a new resource being created on the
+			// server, the response SHOULD have a 2.04 (Changed) Response Code.
+			Code:      gocoap.Changed,
+			MessageID: msg.MessageID,
+			Token:     msg.Token,
+			Payload:   []byte{},
+		}
+
+		if msg.IsConfirmable() {
+			res.Type = gocoap.Acknowledgement
+			res.SetOption(gocoap.ContentFormat, gocoap.AppJSON)
+			if len(msg.Payload) == 0 {
+				res.Code = gocoap.BadRequest
+				return res
+			}
+		}
+
+		channelID := mux.Var(msg, "id")
+
+		cid, err := strconv.ParseUint(channelID, 10, 64)
+		if err != nil {
+			res.Code = gocoap.NotFound
+			return res
+		}
+
+		publisher, err := authorize(msg, res, cid)
+		if err != nil {
+			res.Code = gocoap.Forbidden
+			return res
+		}
+
+		rawMsg := mainflux.RawMessage{
+			Channel:   cid,
+			Publisher: publisher,
+			Protocol:  protocol,
+			Payload:   msg.Payload,
+		}
+
+		if err := svc.Publish(rawMsg); err != nil {
+			res.Code = gocoap.InternalServerError
+		}
+
+		return res
+	}
+}
+
+func observe(svc coap.Service, responses chan<- string) handler {
+	return func(conn *net.UDPConn, addr *net.UDPAddr, msg *gocoap.Message) *gocoap.Message {
+		res := &gocoap.Message{
+			Type:      gocoap.Acknowledgement,
+			Code:      gocoap.Content,
+			MessageID: msg.MessageID,
+			Token:     msg.Token,
+			Payload:   []byte{},
+		}
+		res.SetOption(gocoap.ContentFormat, gocoap.AppJSON)
+
+		id := mux.Var(msg, "id")
+		chanID, err := strconv.ParseUint(id, 10, 64)
+		if err != nil {
+			res.Code = gocoap.NotFound
+			return res
+		}
+
+		publisher, err := authorize(msg, res, chanID)
+		if err != nil {
+			res.Code = gocoap.Forbidden
+			logger.Warn(fmt.Sprintf("Failed to authorize: %s", err))
+			return res
+		}
+
+		obsID := fmt.Sprintf("%x-%d-%d", msg.Token, publisher, chanID)
+
+		if msg.Type == gocoap.Acknowledgement {
+			responses <- obsID
+			return nil
+		}
+
+		if value, ok := msg.Option(gocoap.Observe).(uint32); (ok && value == 1) || msg.Type == gocoap.Reset {
+			svc.Unsubscribe(obsID)
+		}
+
+		if value, ok := msg.Option(gocoap.Observe).(uint32); ok && value == 0 {
+			res.AddOption(gocoap.Observe, 1)
+			o := coap.NewObserver()
+			if err := svc.Subscribe(chanID, obsID, o); err != nil {
+				logger.Warn(fmt.Sprintf("Failed to subscribe to NATS subject: %s", err))
+				res.Code = gocoap.InternalServerError
+				return res
+			}
+
+			go handleMessage(conn, addr, o, msg)
+			go ping(svc, obsID, conn, addr, o, msg)
+			go cancel(o)
+		}
+
+		return res
+	}
+}
+
+func cancel(observer *coap.Observer) {
+	<-observer.Cancel
+	close(observer.Messages)
+	observer.StoreExpired(true)
+}
+
+func handleMessage(conn *net.UDPConn, addr *net.UDPAddr, o *coap.Observer, msg *gocoap.Message) {
+	notifyMsg := *msg
+	notifyMsg.Type = gocoap.NonConfirmable
+	notifyMsg.Code = gocoap.Content
+	notifyMsg.RemoveOption(gocoap.URIQuery)
+	for {
+		msg, ok := <-o.Messages
+		if !ok {
+			return
+		}
+		payload, err := json.Marshal(msg)
+		if err != nil {
+			logger.Warn(fmt.Sprintf("Failed to parse received message: %s", err))
+			continue
+		}
+
+		notifyMsg.Payload = payload
+		notifyMsg.MessageID = o.LoadMessageID()
+		buff := new(bytes.Buffer)
+		observe := uint64(notifyMsg.MessageID)
+		if err := binary.Write(buff, binary.BigEndian, observe); err != nil {
+			logger.Warn(fmt.Sprintf("Failed to generate Observe option value: %s", err))
+			continue
+		}
+
+		observeVal := buff.Bytes()
+		notifyMsg.SetOption(gocoap.Observe, observeVal[len(observeVal)-3:])
+
+		if err := gocoap.Transmit(conn, addr, notifyMsg); err != nil {
+			logger.Warn(fmt.Sprintf("Failed to send message to observer: %s", err))
+		}
+	}
+}
+
+func ping(svc coap.Service, obsID string, conn *net.UDPConn, addr *net.UDPAddr, o *coap.Observer, msg *gocoap.Message) {
+	pingMsg := *msg
+	pingMsg.Payload = []byte{}
+	pingMsg.Type = gocoap.Confirmable
+	pingMsg.RemoveOption(gocoap.URIQuery)
+	// According to RFC (https://tools.ietf.org/html/rfc7641#page-18), CON message must be sent at least every
+	// 24 hours. Since 24 hours is too long for our purposes, we use 12.
+	t := time.NewTicker(12 * time.Hour)
+	defer t.Stop()
+	for {
+		select {
+		case _, ok := <-t.C:
+			if !ok || o.LoadExpired() {
+				return
+			}
+
+			o.StoreExpired(true)
+			timeout := float64(coap.AckTimeout)
+			logger.Info(fmt.Sprintf("Ping client %s.", obsID))
+			for i := 0; i < coap.MaxRetransmit; i++ {
+				pingMsg.MessageID = o.LoadMessageID()
+				gocoap.Transmit(conn, addr, pingMsg)
+				time.Sleep(time.Duration(timeout * coap.AckRandomFactor))
+				if !o.LoadExpired() {
+					break
+				}
+				timeout = 2 * timeout
+			}
+
+			if o.LoadExpired() {
+				svc.Unsubscribe(obsID)
+				return
+			}
+		case <-o.Cancel:
+			return
+		}
+	}
+}

coap/api/util.go

@@ -0,0 +1,24 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package api
+
+import "strings"
+
+func authKey(opt interface{}) (string, error) {
+	val, ok := opt.(string)
+	if !ok {
+		return "", errBadRequest
+	}
+
+	arr := strings.Split(val, "=")
+	if len(arr) != 2 || strings.ToLower(arr[0]) != "authorization" {
+		return "", errBadOption
+	}
+
+	return arr[1], nil
+}

coap/messages.go

@@ -1,145 +0,0 @@
-package adapter
-
-import (
-	"bytes"
-	"log"
-	"net"
-
-	mux "github.com/dereulenspiegel/coap-mux"
-	coap "github.com/dustin/go-coap"
-	"github.com/mainflux/mainflux"
-)
-
-func (ca *CoAPAdapter) sendMessage(l *net.UDPConn, a *net.UDPAddr, m *coap.Message) *coap.Message {
-	log.Printf("Got message in sendMessage: path=%q: %#v from %v", m.Path(), m, a)
-	var res *coap.Message
-	if m.IsConfirmable() {
-		res = &coap.Message{
-			Type:      coap.Acknowledgement,
-			Code:      coap.Content,
-			MessageID: m.MessageID,
-			Token:     m.Token,
-			Payload:   []byte(""),
-		}
-		res.SetOption(coap.ContentFormat, coap.AppJSON)
-	}
-
-	if len(m.Payload) == 0 {
-		if m.IsConfirmable() {
-			res.Code = coap.BadRequest
-		}
-		return res
-	}
-
-	// Channel ID
-	cid := mux.Var(m, "channel_id")
-
-	n := mainflux.RawMessage{
-		Channel:   cid,
-		Publisher: "",
-		Protocol:  protocol,
-		Payload:   m.Payload,
-	}
-
-	if err := ca.pub.Publish(n); err != nil {
-		if m.IsConfirmable() {
-			res.Code = coap.InternalServerError
-		}
-		return res
-	}
-
-	if m.IsConfirmable() {
-		res.Code = coap.Changed
-	}
-	return res
-}
-
-func (ca *CoAPAdapter) registerObserver(o Observer, cid string) {
-	found := false
-	for _, v := range ca.obsMap[cid] {
-		if v.addr == o.addr && bytes.Compare(v.message.Token, o.message.Token) == 0 {
-			found = true
-			break
-		}
-	}
-	if !found {
-		log.Println("Register " + cid)
-		log.Printf("o.message = %v", o.message)
-		ca.obsMap[cid] = append(ca.obsMap[cid], o)
-	}
-}
-
-func (ca *CoAPAdapter) deregisterObserver(o Observer, cid string) {
-	for k, v := range ca.obsMap[cid] {
-		if bytes.Compare(v.message.Token, o.message.Token) == 0 {
-			// Observer found, remove it from array
-			log.Println("Deregister " + cid)
-			ca.obsMap[cid] = append((ca.obsMap[cid])[:k], (ca.obsMap[cid])[k+1:]...)
-		}
-	}
-}
-
-func (ca *CoAPAdapter) observeMessage(l *net.UDPConn, a *net.UDPAddr, m *coap.Message) *coap.Message {
-	log.Printf("Got message in observeMessage: path=%q: %#v from %v", m.Path(), m, a)
-	var res *coap.Message
-
-	if m.IsConfirmable() {
-		res = &coap.Message{
-			Type:      coap.Acknowledgement,
-			Code:      coap.Content,
-			MessageID: m.MessageID,
-			Token:     m.Token,
-			Payload:   []byte(""),
-		}
-		res.SetOption(coap.ContentFormat, coap.AppJSON)
-	}
-
-	// Channel ID
-	cid := mux.Var(m, "channel_id")
-
-	// Observer
-	o := Observer{
-		conn:    l,
-		addr:    a,
-		message: m,
-	}
-
-	if m.Option(coap.Observe) == nil {
-		if m.IsConfirmable() {
-			res.Code = coap.BadRequest
-		}
-		return res
-	}
-
-	if value, ok := m.Option(coap.Observe).(uint32); ok && value == 0 {
-		ca.registerObserver(o, cid)
-	} else {
-		ca.deregisterObserver(o, cid)
-	}
-
-	if m.IsConfirmable() {
-		res.Code = coap.Valid
-	}
-	return res
-}
-
-func (ca *CoAPAdapter) obsTransmit(n mainflux.RawMessage) {
-	for _, v := range ca.obsMap[n.Channel] {
-		msg := *(v.message)
-		msg.Payload = n.Payload
-
-		log.Printf("ca.obsMap[cid] = %v", v)
-		log.Printf("msg = %v", msg)
-
-		msg.SetOption(coap.ContentFormat, coap.AppJSON)
-		msg.SetOption(coap.LocationPath, msg.Path())
-
-		log.Printf("Transmitting %v", msg)
-		err := coap.Transmit(v.conn, v.addr, msg)
-		if err != nil {
-			log.Printf("Error on transmitter, stopping: %v", err)
-			return
-		}
-	}
-
-}

coap/nats/messages.go

@@ -1,30 +0,0 @@
-// Package nats contains NATS-specific message repository implementation.
-package nats
-
-import (
-	"github.com/golang/protobuf/proto"
-	"github.com/mainflux/mainflux"
-	broker "github.com/nats-io/go-nats"
-)
-
-const topic string = "src.coap"
-
-var _ mainflux.MessagePublisher = (*natsPublisher)(nil)
-
-type natsPublisher struct {
-	nc *broker.Conn
-}
-
-// NewMessagePublisher instantiates NATS message publisher.
-func NewMessagePublisher(nc *broker.Conn) mainflux.MessagePublisher {
-	return &natsPublisher{nc}
-}
-
-func (pub *natsPublisher) Publish(msg mainflux.RawMessage) error {
-	data, err := proto.Marshal(&msg)
-	if err != nil {
-		return err
-	}
-
-	return pub.nc.Publish(topic, data)
-}

coap/nats/publisher.go

@@ -0,0 +1,64 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+// Package ats contains NATS message publisher implementation.
+package nats
+
+import (
+	"fmt"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/mainflux/mainflux"
+	"github.com/mainflux/mainflux/coap"
+	broker "github.com/nats-io/go-nats"
+)
+
+const prefix = "channel"
+
+var _ mainflux.MessagePublisher = (*natsPublisher)(nil)
+
+type natsPublisher struct {
+	nc *broker.Conn
+}
+
+// New instantiates NATS message publisher.
+func New(nc *broker.Conn) coap.Broker {
+	return &natsPublisher{nc}
+}
+
+func (pubsub *natsPublisher) Publish(msg mainflux.RawMessage) error {
+	data, err := proto.Marshal(&msg)
+	if err != nil {
+		return err
+	}
+
+	subject := fmt.Sprintf("%s.%d", prefix, msg.Channel)
+	return pubsub.nc.Publish(subject, data)
+}
+
+func (pubsub *natsPublisher) Subscribe(chanID uint64, obsID string, observer *coap.Observer) error {
+	sub, err := pubsub.nc.Subscribe(fmt.Sprintf("%s.%d", prefix, chanID), func(msg *broker.Msg) {
+		if msg == nil {
+			return
+		}
+		var rawMsg mainflux.RawMessage
+		if err := proto.Unmarshal(msg.Data, &rawMsg); err != nil {
+			return
+		}
+		observer.Messages <- rawMsg
+	})
+	if err != nil {
+		return err
+	}
+
+	go func() {
+		<-observer.Cancel
+		sub.Unsubscribe()
+	}()
+
+	return nil
+}

coap/observer.go

@@ -0,0 +1,72 @@
+//
+// Copyright (c) 2018
+// Mainflux
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package coap
+
+import (
+	"sync"
+
+	"github.com/mainflux/mainflux"
+)
+
+// Observer is used to handle CoAP subscription.
+type Observer struct {
+	// Expired flag is used to mark that ticker sent a
+	// CON message, but response is not received yet.
+	// The flag changes its value once ACK message is
+	// received from the client. If Expired is true
+	// when ticker is triggered, Observer should be canceled
+	// and removed from the Service map.
+	expired bool
+
+	// Message ID for notification messages.
+	msgID uint16
+
+	expiredLock, msgIDLock sync.Mutex
+
+	// Messages is used to receive messages from NATS.
+	Messages chan mainflux.RawMessage
+
+	// Cancel channel is used to cancel observing resource.
+	// Cancel channel should not be used to send or receive any
+	// data, it's purpose is to be closed once Observer canceled.
+	Cancel chan bool
+}
+
+// NewObserver instantiates a new Observer.
+func NewObserver() *Observer {
+	return &Observer{
+		Messages: make(chan mainflux.RawMessage),
+		Cancel:   make(chan bool),
+	}
+}
+
+// LoadExpired reads Expired flag in thread-safe way.
+func (o *Observer) LoadExpired() bool {
+	o.expiredLock.Lock()
+	defer o.expiredLock.Unlock()
+
+	return o.expired
+}
+
+// StoreExpired stores Expired flag in thread-safe way.
+func (o *Observer) StoreExpired(val bool) {
+	o.expiredLock.Lock()
+	defer o.expiredLock.Unlock()
+
+	o.expired = val
+}
+
+// LoadMessageID reads MessageID and increments
+// its value in thread-safe way.
+func (o *Observer) LoadMessageID() uint16 {
+	o.msgIDLock.Lock()
+	defer o.msgIDLock.Unlock()
+
+	o.msgID++
+	return o.msgID
+}

coap/server.go

@@ -1,30 +0,0 @@
-package adapter
-
-import (
-	"log"
-	"net"
-
-	"github.com/dereulenspiegel/coap-mux"
-	"github.com/dustin/go-coap"
-)
-
-func notFoundHandler(l *net.UDPConn, a *net.UDPAddr, m *coap.Message) *coap.Message {
-	log.Printf("Got message in notFoundHandler: path=%q: %#v from %v", m.Path(), m, a)
-	if m.IsConfirmable() {
-		return &coap.Message{
-			Type: coap.Acknowledgement,
-			Code: coap.NotFound,
-		}
-	}
-	return nil
-}
-
-func (ca *CoAPAdapter) COAPServer() *mux.Router {
-	r := mux.NewRouter()
-	r.Handle("/channels/{channel_id}/messages", coap.FuncHandler(ca.sendMessage)).Methods(coap.POST)
-	r.Handle("/channels/{channel_id}/messages", coap.FuncHandler(ca.observeMessage)).Methods(coap.GET)
-
-	r.NotFoundHandler = coap.FuncHandler(notFoundHandler)
-
-	return r
-}

dashflux/.angular-cli.json

@@ -0,0 +1,60 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "project": {
+    "name": "mainflux-ui"
+  },
+  "apps": [
+    {
+      "root": "src",
+      "outDir": "dist",
+      "assets": [
+        "assets",
+        "favicon.png"
+      ],
+      "index": "index.html",
+      "main": "main.ts",
+      "polyfills": "polyfills.ts",
+      "test": "test.ts",
+      "tsconfig": "tsconfig.app.json",
+      "testTsconfig": "tsconfig.spec.json",
+      "prefix": "app",
+      "styles": [
+        "styles.scss"
+      ],
+      "scripts": [],
+      "environmentSource": "environments/environment.ts",
+      "environments": {
+        "dev": "environments/environment.ts",
+        "prod": "environments/environment.prod.ts"
+      }
+    }
+  ],
+  "e2e": {
+    "protractor": {
+      "config": "./protractor.conf.js"
+    }
+  },
+  "lint": [
+    {
+      "project": "src/tsconfig.app.json",
+      "exclude": "**/node_modules/**"
+    },
+    {
+      "project": "src/tsconfig.spec.json",
+      "exclude": "**/node_modules/**"
+    },
+    {
+      "project": "e2e/tsconfig.e2e.json",
+      "exclude": "**/node_modules/**"
+    }
+  ],
+  "test": {
+    "karma": {
+      "config": "./karma.conf.js"
+    }
+  },
+  "defaults": {
+    "styleExt": "scss",
+    "component": {}
+  }
+}

dashflux/.editorconfig

@@ -0,0 +1,13 @@
+# Editor configuration, see http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

dashflux/.gitignore

@@ -0,0 +1,58 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# compiled output
+/dist
+/tmp
+
+# dependencies
+/node_modules
+/bower_components
+
+# IDEs and editors
+/.idea
+/.vscode
+/out-tsc
+
+# dependencies
+/node_modules
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# misc
+/.sass-cache
+/connect.lock
+/coverage/*
+/coverage
+/libpeerconnection.log
+npm-debug.log
+testem.log
+/typings
+
+# e2e
+/e2e/*.js
+/e2e/*.map
+
+#System Files
+.DS_Store
+Thumbs.db
+
+#json-server database
+db.json
+db.*
+# System Files
+.DS_Store
+Thumbs.db

dashflux/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+
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+   See the License for the specific language governing permissions and
+   limitations under the License.

dashflux/README.md

@@ -0,0 +1,73 @@
+# Mainflux UI Dashboad
+
+Mainflux UI, dashboard for [Mainflux](https://github.com/mainflux/mainflux) Industrial IoT Messaging and Device Management Server.
+
+> **N.B.** Mainflux UI service is WIP and not suitable for deployment at this moment. You are welcome to contribute and improve it.
+> ## Development
+>- Follow angular-cli [documentation](https://github.com/angular/angular-cli)
+>- Follow [official angular style guide](https://angular.io/styleguide)
+
+## Requirements
+
+You'll need the following software installed to get started.
+
+- [Node](https://nodejs.org/en/) 6  or higher, we recommend current LTS version, together with NPM 3 or higher.
+- [Angular-cli](https://github.com/angular/angular-cli) Newest version with Webpack integration
+- - Depending on how Node is configured on your machine, you may need to run installation command with `sudo`
+- [Git](http://git-scm.com/downloads): Use the installer for your OS.
+  - Windows users can also try [Git for Windows](http://git-for-windows.github.io/).
+- For local Development with [Mainflux composition](https://github.com/mainflux/mainflux) running locally, [Chrome extension for Cross origin](https://chrome.google.com/webstore/detail/allow-control-allow-origi/nlfbmbojpeacfghkpbjhddihlkkiljbi?utm_source=chrome-app-launcher-info-dialog) is required. Because composition is running on different port then our Angular app, we have cross origin.
+
+## Configuration
+
+Change into the directory.
+
+```bash
+cd dashflux
+```
+
+Install the dependencies. If you're running Mac OS or Linux, you may need to run `sudo npm install` instead, depending on how your machine is configured.
+
+```bash
+npm install
+```
+
+Set appropriate endpoint URLs in **environment.ts** (for local development will probably be 0.0.0.0:<_port_>) or **environment.prod.ts** for production.
+
+To start the server, run:
+
+```bash
+ng serve
+```
+
+This will run and assemble our app.
+ **Now go to `localhost:4200` in your browser to see it in action.**
+
+## Deployment
+
+Dashflux is distributed as Docker container. We use nginx to serve dashflux from docker container, supporting environments using docker multi-stage builds.
+Dashflux docker image is available on [Dockerhub mainflux/dashflux](https://hub.docker.com/r/mainflux/dashflux/)
+
+If you want to build image locally, you can build image using the **development** environment:
+
+```bash
+docker build -f docker/Dockerfile  -t dashflux:dev --build-arg env=dev .
+```
+
+Build image using the **production** environment:
+
+```bash
+docker build -t dashflux:prod -f ./docker/Dockerfile .
+```
+
+**Note:** before running *docker build* command, please make sure appropriate endpoint URLs in *environment.ts* or *environment.prod.ts* are set up.
+
+You can test image running
+
+```bash
+docker run -p 80:80 dashflux:dev
+```
+
+This will run dashflux in docker container.
+
+Now go to `http://localhost` in your browser to see it in action.

dashflux/docker/.dockerignore

@@ -0,0 +1 @@
+node_modules

dashflux/docker/Dockerfile

@@ -0,0 +1,13 @@
+# Stage 0, based on Node.js, to build and compile Angular
+FROM node:9.5 as node
+WORKDIR /app
+COPY package.json /app/
+RUN npm install
+COPY ./ /app/
+ARG env=prod
+RUN npm run build -- --prod --environment $env
+
+# Stage 1, based on Nginx, to have only the compiled app, ready for production with Nginx
+FROM nginx:1.13-alpine
+COPY --from=node /app/dist/ /usr/share/nginx/html
+COPY docker/nginx.conf /etc/nginx/conf.d/default.conf

dashflux/docker/nginx.conf

@@ -0,0 +1,8 @@
+server {
+  listen 3000;
+  location / {
+    root /usr/share/nginx/html;
+    index index.html index.htm;
+    try_files $uri $uri/ /index.html =404;
+  }
+}

dashflux/e2e/app.e2e-spec.ts

@@ -0,0 +1,14 @@
+import { AppPage } from './app.po';
+
+describe('mainflux-ui App', () => {
+  let page: AppPage;
+
+  beforeEach(() => {
+    page = new AppPage();
+  });
+
+  it('should display welcome message', () => {
+    page.navigateTo();
+    expect(page.getParagraphText()).toEqual('Welcome to app!');
+  });
+});

dashflux/e2e/app.po.ts

@@ -0,0 +1,11 @@
+import { browser, by, element } from 'protractor';
+
+export class AppPage {
+  navigateTo() {
+    return browser.get('/');
+  }
+
+  getParagraphText() {
+    return element(by.css('app-root h1')).getText();
+  }
+}

dashflux/e2e/tsconfig.e2e.json

@@ -0,0 +1,14 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/e2e",
+    "baseUrl": "./",
+    "module": "commonjs",
+    "target": "es5",
+    "types": [
+      "jasmine",
+      "jasminewd2",
+      "node"
+    ]
+  }
+}

dashflux/karma.conf.js

@@ -0,0 +1,33 @@
+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/1.0/config/configuration-file.html
+
+module.exports = function (config) {
+  config.set({
+    basePath: '',
+    frameworks: ['jasmine', '@angular/cli'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter'),
+      require('@angular/cli/plugins/karma')
+    ],
+    client:{
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    coverageIstanbulReporter: {
+      reports: [ 'html', 'lcovonly' ],
+      fixWebpackSourcePaths: true
+    },
+    angularCli: {
+      environment: 'dev'
+    },
+    reporters: ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['ChromeHeadless'],
+    singleRun: false
+  });
+};

dashflux/package.json

@@ -0,0 +1,57 @@
+{
+  "name": "mainflux-ui",
+  "version": "0.1.0",
+  "license": "Apache License, version 2.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve --proxy-config proxy-config.json",
+    "build": "ng build",
+    "test": "ng test",
+    "lint": "ng lint",
+    "e2e": "ng e2e"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "^5.2.4",
+    "@angular/common": "^5.2.4",
+    "@angular/compiler": "^5.2.4",
+    "@angular/core": "^5.2.4",
+    "@angular/flex-layout": "2.0.0-beta.10-4905443",
+    "@angular/forms": "^5.2.4",
+    "@angular/http": "^5.2.4",
+    "@angular/platform-browser": "^5.2.4",
+    "@angular/platform-browser-dynamic": "^5.2.4",
+    "@angular/router": "^5.2.4",
+    "core-js": "^2.4.1",
+    "mobx": "^3.5.1",
+    "mobx-angular": "^2.1.1",
+    "ngx-auth": "^2.2.0",
+    "rxjs": "^5.5.2",
+    "zone.js": "^0.8.14"
+  },
+  "devDependencies": {
+    "@angular/cdk": "^5.2.0",
+    "@angular/cli": "^1.7.3",
+    "@angular/compiler-cli": "^5.2.4",
+    "@angular/language-service": "^5.2.4",
+    "@angular/material": "^5.2.0",
+    "@types/jasmine": "~2.5.53",
+    "@types/jasminewd2": "~2.0.2",
+    "@types/node": "^6.0.100",
+    "codelyzer": "~3.2.0",
+    "hammerjs": "^2.0.8",
+    "jasmine-core": "~2.5.2",
+    "jasmine-spec-reporter": "~4.1.0",
+    "karma": "~1.7.0",
+    "karma-chrome-launcher": "~2.1.1",
+    "karma-cli": "~1.0.1",
+    "karma-coverage-istanbul-reporter": "^1.2.1",
+    "karma-jasmine": "~1.1.0",
+    "karma-jasmine-html-reporter": "^0.2.2",
+    "karma-phantomjs-launcher": "^1.0.4",
+    "protractor": "~5.1.2",
+    "ts-node": "~3.2.0",
+    "tslint": "~5.7.0",
+    "typescript": "~2.4.2"
+  }
+}

dashflux/protractor.conf.js

@@ -0,0 +1,28 @@
+// Protractor configuration file, see link for more information
+// https://github.com/angular/protractor/blob/master/lib/config.ts
+
+const { SpecReporter } = require('jasmine-spec-reporter');
+
+exports.config = {
+  allScriptsTimeout: 11000,
+  specs: [
+    './e2e/**/*.e2e-spec.ts'
+  ],
+  capabilities: {
+    'browserName': 'chrome'
+  },
+  directConnect: true,
+  baseUrl: 'http://localhost:4200/',
+  framework: 'jasmine',
+  jasmineNodeOpts: {
+    showColors: true,
+    defaultTimeoutInterval: 30000,
+    print: function() {}
+  },
+  onPrepare() {
+    require('ts-node').register({
+      project: 'e2e/tsconfig.e2e.json'
+    });
+    jasmine.getEnv().addReporter(new SpecReporter({ spec: { displayStacktrace: true } }));
+  }
+};

dashflux/proxy-config.json

@@ -0,0 +1,9 @@
+{
+    "/api/*": {
+       "target": "http://localhost:8180",
+       "secure":false,
+       "pathRewrite": {
+           "^/api": ""
+        }
+    }
+}

dashflux/src/app/app-routing.module.ts

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { CommonModule } from '@angular/common';
+import { NgModule } from '@angular/core';
+import { Route, RouterModule } from '@angular/router';
+import { ProtectedGuard, PublicGuard } from 'ngx-auth';
+
+import { LoginComponent } from './components/auth/login/login.component';
+import { SignupComponent } from './components/auth/signup/signup.component';
+import { ChannelsComponent } from './components/channels/channels.component';
+import { ThingsComponent } from './components/things/things.component';
+
+const routes: Route[] = [
+  { path: '', redirectTo: 'things', pathMatch: 'full'},
+  { path: 'login', component: LoginComponent, canActivate: [PublicGuard]},
+  { path: 'signup', component: SignupComponent, canActivate: [PublicGuard]},
+  { path: 'things', component: ThingsComponent, canActivate: [ProtectedGuard]},
+  { path: 'channels', component: ChannelsComponent, canActivate: [ProtectedGuard]}
+];
+
+@NgModule({
+  imports: [
+    CommonModule,
+    RouterModule.forRoot(routes)
+  ],
+  exports: [
+    RouterModule
+  ]
+})
+export class AppRoutingModule { }

dashflux/src/app/app.component.html

@@ -0,0 +1,22 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<div *mobxAutorun>
+    <div class="loading" *ngIf="uiStore.loading" fxLayoutAlign="center center">
+        <mat-progress-spinner [mode]="'indeterminate'"></mat-progress-spinner>
+    </div>
+    <mat-toolbar color="primary" class="mat-elevation-z6">
+        <h1 fxFlex>Mainflux</h1>
+        <ng-container *ngIf="authStore.isAuthenticated">
+            <a [routerLink]="['/things']" mat-button>Things</a>
+            <a [routerLink]="['/channels']" mat-button>Channels</a>
+            <a (click)="logout()" mat-button>Logout</a>
+        </ng-container>
+
+    </mat-toolbar>
+    <router-outlet></router-outlet>
+</div>

dashflux/src/app/app.component.scss

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+.loading {
+    position: absolute;
+    width: 100%;
+    height: 100%;
+    z-index: 999;
+}

dashflux/src/app/app.component.spec.ts

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { HttpClientModule } from '@angular/common/http';
+import { async, TestBed } from '@angular/core/testing';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { AppComponent } from './app.component';
+import { MaterialModule } from './core/material/material.module';
+import { AuthenticationService } from './core/services/auth/authentication.service';
+import { TokenStorage } from './core/services/auth/token-storage.service';
+import { ChannelsService } from './core/services/channels/channels.service';
+import { ThingsService } from './core/services/things/things.service';
+import { UiStore } from './core/store/ui.store';
+import { AuthStore } from './core/store/auth.store';
+
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+      imports: [
+        MaterialModule,
+        HttpClientModule,
+        RouterTestingModule
+      ],
+      providers: [
+        UiStore,
+        AuthStore,
+        AuthenticationService,
+        TokenStorage,
+        ThingsService,
+        ChannelsService,
+      ]
+    }).compileComponents();
+  }));
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+});

dashflux/src/app/app.component.ts

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { Component, OnInit } from '@angular/core';
+import { MatSnackBar } from '@angular/material';
+import { reaction } from 'mobx';
+
+import { UiStore } from './core/store/ui.store';
+import { AuthStore } from './core/store/auth.store';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.scss']
+})
+export class AppComponent implements OnInit {
+  constructor(
+    private snackBar: MatSnackBar,
+    public uiStore: UiStore,
+    public authStore: AuthStore,
+  ) { }
+
+  ngOnInit() {
+    reaction(() => this.authStore.authError, (authError) => {
+      if (authError) {
+        this.snackBar.open(authError, '', {
+          duration: 3000
+        });
+      }
+    });
+  }
+
+  logout() {
+    this.authStore.logout();
+  }
+}

dashflux/src/app/app.module.ts

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import './rxjs-extensions.ts';
+import 'hammerjs';
+
+import { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';
+import { APP_BASE_HREF } from '@angular/common';
+import { NgModule } from '@angular/core';
+import { FlexLayoutModule } from '@angular/flex-layout';
+import { ReactiveFormsModule } from '@angular/forms';
+import { BrowserModule } from '@angular/platform-browser';
+import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
+import { MobxAngularModule } from 'mobx-angular';
+import { AUTH_SERVICE, AuthModule, PROTECTED_FALLBACK_PAGE_URI, PUBLIC_FALLBACK_PAGE_URI } from 'ngx-auth';
+
+import { AppRoutingModule } from './app-routing.module';
+import { AppComponent } from './app.component';
+import { LoginComponent } from './components/auth/login/login.component';
+import { SignupComponent } from './components/auth/signup/signup.component';
+import { ChannelDialogComponent } from './components/channels/channel-dialog/channel-dialog.component';
+import { ChannelsComponent } from './components/channels/channels.component';
+import { ThingDialogComponent } from './components/things/thing-dialog/thing-dialog.component';
+import { ThingsComponent } from './components/things/things.component';
+import { ConfirmationDialogComponent } from './components/shared/confirmation-dialog/confirmation-dialog.component';
+import { MaterialModule } from './core/material/material.module';
+import { AuthenticationService } from './core/services/auth/authentication.service';
+import { TokenStorage } from './core/services/auth/token-storage.service';
+import { ChannelsService } from './core/services/channels/channels.service';
+import { ThingsService } from './core/services/things/things.service';
+import { MockAuthService } from './core/services/mock-auth.service';
+import { MockChannelsService } from './core/services/mock-channels.service';
+import { MockThingsService } from './core/services/mock-things.service';
+import { ChannelsStore } from './core/store/channels.store';
+import { ThingsStore } from './core/store/things.store';
+import { UiStore } from './core/store/ui.store';
+import { AuthStore } from './core/store/auth.store';
+import { UnauthorizedInterceptor } from './core/services/auth/unauthorized.interceptor';
+
+export function factory(authenticationService: AuthenticationService) {
+  return authenticationService;
+}
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    ThingsComponent,
+    ChannelsComponent,
+    SignupComponent,
+    LoginComponent,
+    ThingDialogComponent,
+    ConfirmationDialogComponent,
+    ChannelDialogComponent,
+  ],
+  imports: [
+    AuthModule,
+    BrowserModule,
+    BrowserAnimationsModule,
+    AppRoutingModule,
+    HttpClientModule,
+    MaterialModule,
+    FlexLayoutModule,
+    ReactiveFormsModule,
+    MobxAngularModule,
+  ],
+  providers: [
+    UiStore,
+    ThingsStore,
+    ChannelsStore,
+    AuthStore,
+    MockAuthService,
+    MockThingsService,
+    MockChannelsService,
+    ThingsService,
+    ChannelsService,
+    TokenStorage,
+    AuthenticationService,
+    { provide: PROTECTED_FALLBACK_PAGE_URI, useValue: '/' },
+    { provide: PUBLIC_FALLBACK_PAGE_URI, useValue: '/login' },
+    {
+      provide: AUTH_SERVICE,
+      deps: [AuthenticationService],
+      useFactory: factory
+    },
+    { provide: HTTP_INTERCEPTORS, useClass: UnauthorizedInterceptor, multi: true },
+    { provide: APP_BASE_HREF, useValue: '/app/' }
+  ],
+  bootstrap: [AppComponent],
+  entryComponents: [
+    ThingDialogComponent,
+    ChannelDialogComponent,
+    ConfirmationDialogComponent
+  ]
+})
+export class AppModule { }

dashflux/src/app/components/auth/login/login.component.html

@@ -0,0 +1,35 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<div class="container" style="height: 80vh" fxLayoutAlign="center center">
+  <form fxLayout="column" [formGroup]="loginForm" (ngSubmit)="login()" fxFlex="30%" fxFlex.sm="70%" fxFlex.xs="90%">
+    <mat-card>
+      <mat-card-title>Login</mat-card-title>
+      <mat-card-content class="loginCard" fxLayout="column" fxLayoutAlign="space-evenly">
+        <mat-form-field fxFlex="40%">
+          <input type="text" class="emailInput" required matInput placeholder="Email" formControlName="email"/>
+          <mat-error *ngIf="loginForm.get('email').errors?.required">
+            Email is required
+          </mat-error>
+          <mat-error *ngIf="loginForm.get('email').errors?.email">
+            Email must be valid
+          </mat-error>
+        </mat-form-field>
+        <mat-form-field fxFlex="30%">
+          <input type="password" class="passwordInput" required matInput placeholder="Password" formControlName="password" />
+          <mat-error *ngIf="loginForm.get('password').errors?.required">
+            Password is required
+          </mat-error>
+        </mat-form-field>
+      </mat-card-content>
+      <mat-card-actions fxLayout="column">
+        <button type="submit" [disabled]="loginForm.invalid" mat-raised-button color="primary" class="loginButton">Login</button>
+        <button mat-button (click)="signup()" class="signupButton">Sign Up with Email</button>
+      </mat-card-actions>
+    </mat-card>
+  </form>
+</div>

dashflux/src/app/components/auth/login/login.component.scss

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+::ng-deep mat-card-content.loginCard {
+    height: 200px;
+}

dashflux/src/app/components/auth/login/login.component.spec.ts

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClientModule } from '@angular/common/http';
+import { async, ComponentFixture, inject, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { MaterialModule } from '../../../core/material/material.module';
+import { AuthenticationService } from '../../../core/services/auth/authentication.service';
+import { TokenStorage } from '../../../core/services/auth/token-storage.service';
+import { LoginComponent } from './login.component';
+import { UiStore } from '../../../core/store/ui.store';
+import { AuthStore } from '../../../core/store/auth.store';
+
+describe('LoginComponent', () => {
+  let component: LoginComponent;
+  let fixture: ComponentFixture<LoginComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ LoginComponent ],
+      imports: [
+        MaterialModule,
+        HttpClientModule,
+        RouterTestingModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule
+      ],
+      providers: [
+        UiStore,
+        AuthStore,
+        AuthenticationService,
+        TokenStorage,
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(LoginComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+
+  it('should call the store goToSignup when clicked on Sign Up with Email', inject([UiStore], (store: UiStore) => {
+    const signupButton = fixture.debugElement.nativeElement.querySelector('.signupButton');
+    const signupSpy = spyOn(store, 'goToSignup').and.stub();
+
+    signupButton.click();
+
+    fixture.detectChanges();
+
+    expect(signupSpy).toHaveBeenCalled();
+  }));
+});

dashflux/src/app/components/auth/login/login.component.ts

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Component, OnInit } from '@angular/core';
+import { FormBuilder, FormGroup, Validators } from '@angular/forms';
+
+import { UiStore } from '../../../core/store/ui.store';
+import { AuthStore } from '../../../core/store/auth.store';
+
+@Component({
+  selector: 'app-login',
+  templateUrl: './login.component.html',
+  styleUrls: ['./login.component.scss']
+})
+export class LoginComponent implements OnInit {
+  loginForm: FormGroup;
+
+  constructor(
+    private fb: FormBuilder,
+    private uiStore: UiStore,
+    private authStore: AuthStore,
+  ) { }
+
+  ngOnInit() {
+    this.loginForm = this.fb.group({
+      email: ['', [Validators.required, Validators.email]],
+      password: ['', [Validators.required]],
+    });
+  }
+
+  login() {
+    this.authStore.login(this.getUserDataFromForm());
+  }
+
+  signup() {
+    this.uiStore.goToSignup();
+  }
+
+  getUserDataFromForm() {
+    return {
+      email: this.loginForm.get('email').value,
+      password: this.loginForm.get('password').value
+    };
+  }
+}

dashflux/src/app/components/auth/signup/signup.component.html

@@ -0,0 +1,41 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<div class="container" style="height: 80vh" fxLayoutAlign="center center">
+  <form fxLayout="column" [formGroup]="signupForm" (ngSubmit)="signup()" fxFlex="30%" fxFlex.sm="70%" fxFlex.xs="90%">
+    <mat-card>
+      <mat-card-title>Signup</mat-card-title>
+      <mat-card-content class="loginCard" fxLayout="column" fxLayoutAlign="space-evenly">
+        <mat-form-field fxFlex="40%">
+          <input type="text" required matInput placeholder="Email" formControlName="email"/>
+          <mat-error *ngIf="signupForm.get('email').errors?.required">
+            Email is required
+          </mat-error>
+          <mat-error *ngIf="signupForm.get('email').errors?.email">
+            Email must be valid
+          </mat-error>
+        </mat-form-field>
+        <mat-form-field fxFlex="30%" formGroupName="passwords">
+          <input type="password" required matInput placeholder="Password" formControlName="password" />
+          <mat-error *ngIf="signupForm.get('passwords.password').errors?.required">
+            Password is required
+          </mat-error>
+        </mat-form-field>
+        <mat-form-field fxFlex="30%" formGroupName="passwords">
+          <input type="password" required matInput placeholder="Repeat password" formControlName="repeatPassword" />
+          <mat-error *ngIf="signupForm.get('passwords.repeatPassword').errors?.required">
+            Repeat the password
+          </mat-error>
+        </mat-form-field>
+      </mat-card-content>
+      <mat-card-actions fxLayout="column">
+        <button type="submit" [disabled]="signupForm.invalid" mat-raised-button color="primary" class="large-button">Signup</button>
+        <a mat-button (click)="login()">Login</a>
+      </mat-card-actions>
+    </mat-card>
+  </form>
+</div>

dashflux/src/app/components/auth/signup/signup.component.scss

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+::ng-deep mat-card-content.loginCard {
+    height: 200px;
+}

dashflux/src/app/components/auth/signup/signup.component.spec.ts

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClientModule } from '@angular/common/http';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { MaterialModule } from '../../../core/material/material.module';
+import { AuthenticationService } from '../../../core/services/auth/authentication.service';
+import { TokenStorage } from '../../../core/services/auth/token-storage.service';
+import { SignupComponent } from './signup.component';
+import { AuthStore } from '../../../core/store/auth.store';
+import { UiStore } from '../../../core/store/ui.store';
+
+describe('SignupComponent', () => {
+  let component: SignupComponent;
+  let fixture: ComponentFixture<SignupComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ SignupComponent ],
+      imports: [
+        MaterialModule,
+        HttpClientModule,
+        RouterTestingModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule
+      ],
+      providers: [
+        UiStore,
+        AuthStore,
+        AuthenticationService,
+        TokenStorage
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(SignupComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashflux/src/app/components/auth/signup/signup.component.ts

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Component, OnInit } from '@angular/core';
+import { AbstractControl, FormBuilder, FormGroup, Validators } from '@angular/forms';
+
+import { AuthStore } from '../../../core/store/auth.store';
+import { UiStore } from '../../../core/store/ui.store';
+
+@Component({
+  selector: 'app-signup',
+  templateUrl: './signup.component.html',
+  styleUrls: ['./signup.component.scss']
+})
+export class SignupComponent implements OnInit {
+  signupForm: FormGroup;
+
+  constructor(
+    private fb: FormBuilder,
+    private uiStore: UiStore,
+    private authStore: AuthStore,
+  ) { }
+
+  ngOnInit() {
+    this.signupForm = this.fb.group({
+      email: ['', [Validators.required, Validators.email]],
+      passwords: this.fb.group({
+        password: ['', [Validators.required]],
+        repeatPassword: ['', [Validators.required]]
+      }, { validator: this.comparePasswords })
+    });
+  }
+
+  comparePasswords(c: AbstractControl): { [key: string]: boolean } {
+    const pass = c.get('password');
+    const repeatPassword = c.get('repeatPassword');
+
+    if (pass.value !== repeatPassword.value) {
+      return { 'match': true };
+    }
+    return null;
+  }
+
+  signup() {
+    this.authStore.signup(this.getUserDataFromForm());
+  }
+
+  login() {
+    this.uiStore.goToLogin();
+  }
+
+  getUserDataFromForm() {
+    return {
+      email: this.signupForm.get('email').value,
+      password: this.signupForm.get('passwords.password').value
+    };
+  }
+}

dashflux/src/app/components/channels/channel-dialog/channel-dialog.component.html

@@ -0,0 +1,29 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<form [formGroup]="addChannelForm" (ngSubmit)="onAddChannel()">
+    <h1 *ngIf="!editMode" mat-dialog-title>Add channel</h1>
+    <h1 *ngIf="editMode" mat-dialog-title>Edit channel</h1>
+    <div mat-dialog-content fxLayout="column">
+      <input type="hidden" formControlName="id">
+      <mat-form-field>
+        <input matInput tabindex="1" placeholder="Name" formControlName="name" />
+        <mat-error *ngIf="addChannelForm.get('name').errors?.required">
+          Name is required
+        </mat-error>
+      </mat-form-field>
+      <mat-form-field>
+          <mat-select placeholder="Connected things" formControlName="connected" [compareWith]="compareFunction" multiple>
+            <mat-option *ngFor="let thing of thingsStore.things" [value]="thing">{{thing.name}}</mat-option>
+          </mat-select>
+        </mat-form-field>
+    </div>
+    <div mat-dialog-actions>
+      <button mat-button mat-dialog-close>Cancel</button>
+      <button mat-button mat-raised-button color="primary" type="submit" [disabled]="addChannelForm.invalid">Ok</button>
+    </div>
+  </form>

dashflux/src/app/components/channels/channel-dialog/channel-dialog.component.spec.ts

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClientModule } from '@angular/common/http';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { MaterialModule } from '../../../core/material/material.module';
+import { AuthenticationService } from '../../../core/services/auth/authentication.service';
+import { TokenStorage } from '../../../core/services/auth/token-storage.service';
+import { ChannelsService } from '../../../core/services/channels/channels.service';
+import { ThingsService } from '../../../core/services/things/things.service';
+import { ChannelDialogComponent } from './channel-dialog.component';
+import { ThingsStore } from '../../../core/store/things.store';
+import { UiStore } from '../../../core/store/ui.store';
+
+describe('ChannelDialogComponent', () => {
+  let component: ChannelDialogComponent;
+  let fixture: ComponentFixture<ChannelDialogComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ChannelDialogComponent ],
+      imports: [
+        MaterialModule,
+        MatDialogModule,
+        HttpClientModule,
+        RouterTestingModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule
+      ],
+      providers: [
+        ThingsStore,
+        UiStore,
+        AuthenticationService,
+        TokenStorage,
+        ThingsService,
+        ChannelsService,
+        { provide: MatDialogRef, useValue: {} },
+        { provide: MAT_DIALOG_DATA, useValue: [] },
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ChannelDialogComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashflux/src/app/components/channels/channel-dialog/channel-dialog.component.ts

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Component, EventEmitter, Inject, OnInit, Output } from '@angular/core';
+import { FormBuilder, FormGroup } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material';
+import { toJS } from 'mobx';
+
+import { ThingsStore } from '../../../core/store/things.store';
+import { Channel, Thing } from '../../../core/store/models';
+
+@Component({
+  selector: 'app-channel-dialog',
+  templateUrl: './channel-dialog.component.html',
+  styleUrls: ['./channel-dialog.component.scss']
+})
+export class ChannelDialogComponent implements OnInit {
+  addChannelForm: FormGroup;
+  @Output() submit: EventEmitter<Channel> = new EventEmitter<Channel>();
+  editMode: boolean;
+
+  constructor(
+    private fb: FormBuilder,
+    private dialogRef: MatDialogRef<ChannelDialogComponent>,
+    @Inject(MAT_DIALOG_DATA) public data: Channel,
+    public thingsStore: ThingsStore,
+  ) { }
+
+  ngOnInit() {
+    this.addChannelForm = this.fb.group(
+      {
+        id: [''],
+        name: [''],
+        connected: [[]]
+      }
+    );
+
+    if (this.data) {
+      this.editMode = true;
+      this.addChannelForm.patchValue(toJS(this.data));
+    } else {
+      this.editMode = false;
+    }
+  }
+
+  onAddChannel() {
+    const channel = this.addChannelForm.value;
+    this.submit.emit(channel);
+    this.dialogRef.close();
+  }
+
+  compareFunction(obj1: Thing, obj2: Thing) {
+    return obj1.id === obj2.id;
+  }
+}

dashflux/src/app/components/channels/channels.component.html

@@ -0,0 +1,56 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<div class="channelsContainer" fxLayout="row" fxLayoutWrap>
+  <ng-container [ngSwitch]="channelsStore.channels?.length > 0">
+    <ng-container *ngSwitchCase="true">
+        <!-- List -->
+        <div class="channel-list-container">
+          <mat-table #table [dataSource]="channelsStore.channels.toJS()" matSort class="mat-cell">
+            <!-- Columns -->
+            <ng-container matColumnDef="id">
+              <mat-header-cell fxFlex="32%" *matHeaderCellDef mat-sort-header>Id</mat-header-cell>
+              <mat-cell fxFlex="32%" *matCellDef="let row" >{{row.id}}</mat-cell>
+            </ng-container>
+            <ng-container matColumnDef="name">
+              <mat-header-cell fxFlex="30%" *matHeaderCellDef mat-sort-header>Name</mat-header-cell>
+              <mat-cell fxFlex="30%" *matCellDef="let row"> {{row.name}}</mat-cell>
+            </ng-container>
+            <ng-container matColumnDef="connected">
+              <mat-header-cell fxFlex="30%" *matHeaderCellDef mat-sort-header>Connected</mat-header-cell>
+              <mat-cell fxFlex="30%" *matCellDef="let row">
+                <li *ngFor="let item of row.connected"> {{item.id}} </li>
+              </mat-cell>
+            </ng-container>
+            <!-- Actions -->
+            <ng-container matColumnDef="actions">
+              <mat-header-cell fxFlex="8%" *matHeaderCellDef mat-sort-header></mat-header-cell>
+              <mat-cell fxFlex="8%" *matCellDef="let row" >
+                <button mat-icon-button color="accent" (click)="editChannel(row)">
+                  <mat-icon aria-label="Delete">edit</mat-icon>
+                </button>
+                <button mat-icon-button color="accent" (click)="deleteChannel(row)">
+                  <mat-icon aria-label="Delete">delete</mat-icon>
+                </button>
+              </mat-cell>
+            </ng-container>
+
+            <mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
+            <mat-row *matRowDef="let row; columns: displayedColumns;"></mat-row>
+        </mat-table>
+      </div>
+    </ng-container>
+
+    <ng-container *ngSwitchDefault>
+      <h3>It looks like you don't have any channels in your account.</h3>
+    </ng-container>
+  </ng-container>
+</div>
+
+<button mat-mini-fab class="addButton" (click)="addChannel()">
+  <mat-icon>add</mat-icon>
+</button>

dashflux/src/app/components/channels/channels.component.scss

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+.addButton {
+    position: fixed;
+    bottom: 12px;
+    right: 12px;
+}
+
+/* List container */
+.channel-list-container {
+  width: 100%;
+}

dashflux/src/app/components/channels/channels.component.spec.ts

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClientModule } from '@angular/common/http';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { MaterialModule } from '../../core/material/material.module';
+import { AuthenticationService } from '../../core/services/auth/authentication.service';
+import { TokenStorage } from '../../core/services/auth/token-storage.service';
+import { ChannelsService } from '../../core/services/channels/channels.service';
+import { ThingsService } from '../../core/services/things/things.service';
+import { ChannelsComponent } from './channels.component';
+import { ThingsStore } from '../../core/store/things.store';
+import { UiStore } from '../../core/store/ui.store';
+import { ChannelsStore } from '../../core/store/channels.store';
+
+describe('ChannelsComponent', () => {
+  let component: ChannelsComponent;
+  let fixture: ComponentFixture<ChannelsComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ChannelsComponent ],
+      imports: [
+        MaterialModule,
+        MatDialogModule,
+        HttpClientModule,
+        RouterTestingModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule,
+      ],
+      providers: [
+        {
+          provide: ThingsStore,
+          useClass: class {
+            getThings = jasmine.createSpy('getThings');
+          }
+        },
+        UiStore,
+        {
+          provide: ChannelsStore,
+          useClass: class {
+            getChannels = jasmine.createSpy('getChannels');
+          }
+        },
+        AuthenticationService,
+        TokenStorage,
+        ThingsService,
+        ChannelsService,
+        { provide: MatDialogRef, useValue: {} },
+        { provide: MAT_DIALOG_DATA, useValue: [] },
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ChannelsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashflux/src/app/components/channels/channels.component.ts

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Component, OnInit } from '@angular/core';
+import { MatDialog } from '@angular/material';
+import { Observable } from 'rxjs/Observable';
+
+import { ChannelsStore } from '../../core/store/channels.store';
+import { ThingsStore } from '../../core/store/things.store';
+import { Channel } from '../../core/store/models';
+import { ConfirmationDialogComponent } from '../shared/confirmation-dialog/confirmation-dialog.component';
+import { ChannelDialogComponent } from './channel-dialog/channel-dialog.component';
+
+@Component({
+  selector: 'app-channels',
+  templateUrl: './channels.component.html',
+  styleUrls: ['./channels.component.scss'],
+})
+export class ChannelsComponent implements OnInit {
+  channels: Observable<Channel[]>;
+  displayedColumns = ['id', 'name', 'connected', 'actions'];
+
+  constructor(
+    private dialog: MatDialog,
+    public thingsStore: ThingsStore,
+    public channelsStore: ChannelsStore,
+  ) { }
+
+  ngOnInit() {
+    this.channelsStore.getChannels();
+    this.thingsStore.getThings();
+  }
+
+  addChannel() {
+    const dialogRef = this.dialog.open(ChannelDialogComponent);
+
+    dialogRef.componentInstance.submit.subscribe((channel: Channel) => {
+      this.channelsStore.addChannel(channel);
+    });
+  }
+
+  editChannel(channel: Channel) {
+    const dialogRef = this.dialog.open(ChannelDialogComponent, {
+      data: channel
+    });
+
+    dialogRef.componentInstance.submit.subscribe((editedChannel: Channel) => {
+      this.channelsStore.editChannel(editedChannel);
+    });
+  }
+
+  deleteChannel(channel: Channel) {
+    const dialogRef = this.dialog.open(ConfirmationDialogComponent, {
+      data: {
+        question: 'Are you sure you want to delete the channel?'
+      }
+    });
+
+    dialogRef.afterClosed().subscribe((result) => {
+      if (result) {
+        this.channelsStore.deleteChannel(channel);
+      }
+    });
+  }
+}

dashflux/src/app/components/shared/confirmation-dialog/confirmation-dialog.component.html

@@ -0,0 +1,12 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<h1 mat-dialog-title>{{data.question}}</h1>
+<div mat-dialog-actions fxLayoutAlign="end end">
+  <button mat-button mat-dialog-close>Cancel</button>
+  <button mat-button mat-raised-button color="primary" [mat-dialog-close]="true">Ok</button>
+</div>

dashflux/src/app/components/shared/confirmation-dialog/confirmation-dialog.component.spec.ts

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+
+import { MaterialModule } from '../../../core/material/material.module';
+import { ConfirmationDialogComponent } from './confirmation-dialog.component';
+
+describe('ConfirmationDialogComponent', () => {
+  let component: ConfirmationDialogComponent;
+  let fixture: ComponentFixture<ConfirmationDialogComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ConfirmationDialogComponent ],
+      imports: [
+        MaterialModule,
+        MatDialogModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule
+      ],
+      providers: [
+        { provide: MatDialogRef, useValue: {} },
+        { provide: MAT_DIALOG_DATA, useValue: [] },
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ConfirmationDialogComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashflux/src/app/components/shared/confirmation-dialog/confirmation-dialog.component.ts

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Component, Inject, OnInit } from '@angular/core';
+import { MAT_DIALOG_DATA } from '@angular/material';
+
+@Component({
+  selector: 'app-confirmation-dialog',
+  templateUrl: './confirmation-dialog.component.html',
+  styleUrls: ['./confirmation-dialog.component.scss']
+})
+export class ConfirmationDialogComponent implements OnInit {
+
+  constructor(@Inject(MAT_DIALOG_DATA) public data: any) { }
+
+  ngOnInit() {
+  }
+
+}

dashflux/src/app/components/things/thing-dialog/thing-dialog.component.html

@@ -0,0 +1,34 @@
+<form [formGroup]="addThingForm" (ngSubmit)="onAddThing()">
+  <h1 mat-dialog-title>Add thing</h1>
+  <div mat-dialog-content fxLayout="column">
+    <input type="hidden" formControlName="id">
+    <mat-form-field *ngIf="!editMode">
+      <mat-select placeholder="Thing type" formControlName="type">
+        <mat-option value="app">
+          App
+        </mat-option>
+        <mat-option value="device">
+          Device
+        </mat-option>
+      </mat-select>
+      <mat-error *ngIf="addThingForm.get('type').errors?.required">
+        Type is required
+      </mat-error>
+    </mat-form-field>
+
+    <mat-form-field>
+      <input matInput tabindex="1" placeholder="Name" formControlName="name" />
+      <mat-error *ngIf="addThingForm.get('name').errors?.required">
+        Name is required
+      </mat-error>
+    </mat-form-field>
+    <mat-form-field>
+      <textarea formControlName="metadata" matInput placeholder="Metadata" matTextareaAutosize matAutosizeMinRows="2"
+                matAutosizeMaxRows="5"></textarea>
+    </mat-form-field>
+  </div>
+  <div mat-dialog-actions>
+    <button mat-button mat-dialog-close>Cancel</button>
+    <button mat-button mat-raised-button color="primary" type="submit" [disabled]="addThingForm.invalid">Ok</button>
+  </div>
+</form>

dashflux/src/app/components/things/thing-dialog/thing-dialog.component.spec.ts

@@ -0,0 +1,52 @@
+import { HttpClientModule } from '@angular/common/http';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { MaterialModule } from '../../../core/material/material.module';
+import { AuthenticationService } from '../../../core/services/auth/authentication.service';
+import { TokenStorage } from '../../../core/services/auth/token-storage.service';
+import { ChannelsService } from '../../../core/services/channels/channels.service';
+import { ThingsService } from '../../../core/services/things/things.service';
+import { ThingDialogComponent } from './thing-dialog.component';
+
+describe('ThingDialogComponent', () => {
+  let component: ThingDialogComponent;
+  let fixture: ComponentFixture<ThingDialogComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ThingDialogComponent ],
+      imports: [
+        MaterialModule,
+        MatDialogModule,
+        HttpClientModule,
+        RouterTestingModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule
+      ],
+      providers: [
+        AuthenticationService,
+        TokenStorage,
+        ThingsService,
+        ChannelsService,
+        { provide: MatDialogRef, useValue: {} },
+        { provide: MAT_DIALOG_DATA, useValue: [] },
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ThingDialogComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashflux/src/app/components/things/thing-dialog/thing-dialog.component.ts

@@ -0,0 +1,44 @@
+import { Component, EventEmitter, Inject, OnInit, Output } from '@angular/core';
+import { AbstractControl, FormBuilder, FormGroup, Validators } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material';
+
+import { Thing } from '../../../core/store/models';
+
+@Component({
+  selector: 'app-thing-dialog',
+  templateUrl: './thing-dialog.component.html',
+  styleUrls: ['./thing-dialog.component.scss']
+})
+export class ThingDialogComponent implements OnInit {
+  addThingForm: FormGroup;
+  @Output() submit: EventEmitter<Thing> = new EventEmitter<Thing>();
+  editMode: boolean;
+
+  constructor(
+    private fb: FormBuilder,
+    private dialogRef: MatDialogRef<ThingDialogComponent>,
+    @Inject(MAT_DIALOG_DATA) public data: Thing
+  ) { }
+
+  ngOnInit() {
+    this.addThingForm = this.fb.group(
+      {
+        id: null,
+        type: ['', [Validators.required]],
+        name: ['', [Validators.required, Validators.minLength(5)]],
+        metadata: ['']
+      }
+    );
+
+    if (this.data) {
+      this.editMode = true;
+      this.addThingForm.patchValue(this.data);
+    }
+  }
+
+  onAddThing() {
+    const thing = this.addThingForm.value;
+    this.submit.emit(thing);
+    this.dialogRef.close();
+  }
+}

dashflux/src/app/components/things/things.component.html

@@ -0,0 +1,58 @@
+<!--
+ Copyright (c) 2018
+ Mainflux
+
+ SPDX-License-Identifier: Apache-2.0
+-->
+
+<div class="thingsContainer" fxLayout="row" fxLayoutWrap>
+  <ng-container [ngSwitch]="thingsStore.things?.length > 0">
+    <ng-container *ngSwitchCase="true">
+      <!-- List -->
+      <div class="things-list-container">
+        <mat-table #table [dataSource]="thingsStore.things.toJS()" matSort class="mat-cell">
+          <!-- Columns -->
+          <ng-container matColumnDef="id">
+            <mat-header-cell fxFlex="32%" *matHeaderCellDef mat-sort-header>Id</mat-header-cell>
+            <mat-cell fxFlex="32%" *matCellDef="let row" >{{row.id}}</mat-cell>
+          </ng-container>
+          <ng-container matColumnDef="name">
+            <mat-header-cell fxFlex="15%" *matHeaderCellDef mat-sort-header>Name</mat-header-cell>
+            <mat-cell fxFlex="15%" *matCellDef="let row"> {{row.name}}</mat-cell>
+          </ng-container>
+          <ng-container matColumnDef="type">
+            <mat-header-cell fxFlex="10%" *matHeaderCellDef mat-sort-header>Type</mat-header-cell>
+            <mat-cell fxFlex="10%" *matCellDef="let row"> {{row.type}}</mat-cell>
+          </ng-container>
+          <ng-container matColumnDef="metadata">
+            <mat-header-cell fxFlex="35%" *matHeaderCellDef mat-sort-header>Metadata</mat-header-cell>
+            <mat-cell fxFlex="35%" *matCellDef="let row"> {{row.metadata | json}}</mat-cell>
+          </ng-container>
+          <!-- Actions -->
+          <ng-container matColumnDef="actions">
+            <mat-header-cell fxFlex="8%" *matHeaderCellDef mat-sort-header></mat-header-cell>
+            <mat-cell fxFlex="8%" *matCellDef="let row" >
+              <button mat-icon-button color="accent" (click)="editThing(row)">
+                <mat-icon aria-label="Delete">edit</mat-icon>
+              </button>
+              <button mat-icon-button color="accent" (click)="deleteThing(row)">
+                <mat-icon aria-label="Delete">delete</mat-icon>
+              </button>
+            </mat-cell>
+          </ng-container>
+
+          <mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
+          <mat-row *matRowDef="let row; columns: displayedColumns;"></mat-row>
+      </mat-table>
+    </div>
+
+    </ng-container>
+    <ng-container *ngSwitchDefault>
+      <h3 >It looks like you don't have any device in your account.</h3>
+    </ng-container>
+  </ng-container>
+</div>
+
+<button mat-mini-fab class="addButton" (click)="addThing()">
+  <mat-icon>add</mat-icon>
+</button>

dashflux/src/app/components/things/things.component.scss

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+.addButton {
+    position: fixed;
+    bottom: 12px;
+    right: 12px;
+}
+
+/* List container */
+.things-list-container {
+  width: 100%;
+}

dashflux/src/app/components/things/things.component.spec.ts

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClientModule } from '@angular/common/http';
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { FormsModule, ReactiveFormsModule } from '@angular/forms';
+import { MAT_DIALOG_DATA, MatDialogModule, MatDialogRef } from '@angular/material';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { RouterTestingModule } from '@angular/router/testing';
+
+import { MaterialModule } from '../../core/material/material.module';
+import { AuthenticationService } from '../../core/services/auth/authentication.service';
+import { TokenStorage } from '../../core/services/auth/token-storage.service';
+import { ChannelsService } from '../../core/services/channels/channels.service';
+import { ThingsService } from '../../core/services/things/things.service';
+import { ThingsComponent } from './things.component';
+import { UiStore } from '../../core/store/ui.store';
+import { ThingsStore } from '../../core/store/things.store';
+import { ChannelsStore } from '../../core/store/channels.store';
+
+describe('ThingsComponent', () => {
+  let component: ThingsComponent;
+  let fixture: ComponentFixture<ThingsComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ThingsComponent ],
+      imports: [
+        MaterialModule,
+        MatDialogModule,
+        HttpClientModule,
+        RouterTestingModule,
+        FormsModule,
+        ReactiveFormsModule,
+        NoopAnimationsModule,
+      ],
+      providers: [
+        UiStore,
+        {
+          provide: ThingsStore,
+          useClass: class {
+            getThings = jasmine.createSpy('getThings');
+          }
+        },
+        ChannelsStore,
+        AuthenticationService,
+        TokenStorage,
+        ThingsService,
+        ChannelsService,
+        { provide: MatDialogRef, useValue: {} },
+        { provide: MAT_DIALOG_DATA, useValue: [] },
+      ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ThingsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashflux/src/app/components/things/things.component.ts

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Component, OnInit } from '@angular/core';
+import { MatDialog } from '@angular/material';
+import { toJS } from 'mobx';
+import { Observable } from 'rxjs/Observable';
+
+import { Thing } from '../../core/store/models';
+import { ConfirmationDialogComponent } from '../shared/confirmation-dialog/confirmation-dialog.component';
+import { ThingDialogComponent } from './thing-dialog/thing-dialog.component';
+import { ThingsStore } from '../../core/store/things.store';
+import { ChannelsStore } from '../../core/store/channels.store';
+
+@Component({
+  selector: 'app-things',
+  templateUrl: './things.component.html',
+  styleUrls: ['./things.component.scss']
+})
+export class ThingsComponent implements OnInit {
+  things: Observable<Thing[]>;
+  displayedColumns = ['id', 'name', 'type', 'metadata', 'actions'];
+
+  constructor(
+    private dialog: MatDialog,
+    public thingsStore: ThingsStore,
+    public channelsStore: ChannelsStore,
+  ) { }
+
+  ngOnInit() {
+    this.thingsStore.getThings();
+    this.channelsStore.getChannels();
+  }
+
+  addThing() {
+    const dialogRef = this.dialog.open(ThingDialogComponent);
+
+    dialogRef.componentInstance.submit.subscribe((thing: Thing) => {
+      this.thingsStore.addThing(thing);
+    });
+  }
+
+  editThing(thing: Thing) {
+    const dialogRef = this.dialog.open(ThingDialogComponent, {
+      data: thing
+    });
+
+    dialogRef.componentInstance.submit.subscribe((editedThing: Thing) => {
+      this.thingsStore.editThing(toJS(editedThing));
+    });
+  }
+
+  deleteThing(thing: Thing) {
+    const dialogRef = this.dialog.open(ConfirmationDialogComponent, {
+      data: {
+        question: 'Are you sure you want to delete the thing?'
+      }
+    });
+
+    dialogRef.afterClosed().subscribe((result) => {
+      if (result) {
+        this.thingsStore.deleteThing(toJS(thing));
+      }
+    });
+  }
+}

dashflux/src/app/core/material/material.module.ts

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { NgModule } from '@angular/core';
+import {
+  MatButtonModule,
+  MatButtonToggleModule,
+  MatCardModule,
+  MatCheckboxModule,
+  MatChipsModule,
+  MatDialogModule,
+  MatIconModule,
+  MatInputModule,
+  MatListModule,
+  MatMenuModule,
+  MatProgressSpinnerModule,
+  MatSelectModule,
+  MatSidenavModule,
+  MatSliderModule,
+  MatSlideToggleModule,
+  MatSnackBarModule,
+  MatTabsModule,
+  MatToolbarModule,
+  MatTooltipModule,
+  MatTableModule,
+} from '@angular/material';
+
+@NgModule({
+  imports: [
+    MatButtonModule,
+    MatButtonToggleModule,
+    MatCardModule,
+    MatDialogModule,
+    MatIconModule,
+    MatInputModule,
+    MatListModule,
+    MatMenuModule,
+    MatProgressSpinnerModule,
+    MatSelectModule,
+    MatSidenavModule,
+    MatSnackBarModule,
+    MatTabsModule,
+    MatToolbarModule,
+    MatTooltipModule,
+    MatCheckboxModule,
+    MatSliderModule,
+    MatSlideToggleModule,
+    MatChipsModule,
+    MatTableModule
+  ],
+  exports: [
+    MatButtonModule,
+    MatButtonToggleModule,
+    MatCardModule,
+    MatDialogModule,
+    MatIconModule,
+    MatInputModule,
+    MatListModule,
+    MatMenuModule,
+    MatProgressSpinnerModule,
+    MatSelectModule,
+    MatSidenavModule,
+    MatSnackBarModule,
+    MatTabsModule,
+    MatToolbarModule,
+    MatTooltipModule,
+    MatCheckboxModule,
+    MatSliderModule,
+    MatSlideToggleModule,
+    MatChipsModule,
+    MatTableModule
+  ],
+})
+export class MaterialModule { }

dashflux/src/app/core/services/auth/authentication.service.ts

@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import '../../../rxjs-extensions';
+
+import { HttpClient, HttpErrorResponse } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+import { AuthService } from 'ngx-auth';
+import { Observable } from 'rxjs/Observable';
+
+import { environment } from '../../../../environments/environment';
+import { TokenStorage } from './token-storage.service';
+
+
+interface AccessData {
+  token: string;
+}
+
+@Injectable()
+export class AuthenticationService implements AuthService {
+
+  constructor(
+    private http: HttpClient,
+    private tokenStorage: TokenStorage
+  ) { }
+
+  /**
+   * Check, if user already authorized.
+   * @description Should return Observable with true or false values
+   * @returns {Observable<boolean>}
+   * @memberOf AuthService
+   */
+  public isAuthorized(): Observable<boolean> {
+    return this.tokenStorage
+      .getAccessToken()
+      .map(token => !!token);
+  }
+
+  public getHeaders(token) {
+    return {
+      'Authorization': token
+    };
+  }
+
+  /**
+   * Get access token
+   * @description Should return access token in Observable from e.g.
+   * localStorage
+   * @returns {Observable<string>}
+   */
+  public getAccessToken(): Observable<string> {
+    return this.tokenStorage.getAccessToken();
+  }
+
+  /**
+   * Function, that should perform refresh token verifyTokenRequest
+   * @description Should be successfully completed so interceptor
+   * can execute pending requests or retry original one
+   * @returns {Observable<any>}
+   */
+  public refreshToken(): Observable<AccessData> {
+    return this.tokenStorage
+      .getRefreshToken()
+      .switchMap((refreshToken: string) => {
+        return this.http.post(`http://localhost:3000/refresh`, { refreshToken });
+      })
+      .do(this.saveAccessData.bind(this))
+      .catch((err) => {
+        this.logout();
+
+        return Observable.throw(err);
+      });
+  }
+
+  /**
+   * Function, checks response of failed request to determine,
+   * whether token be refreshed or not.
+   * @description Essentialy checks status
+   * @param {Response} response
+   * @returns {boolean}
+   */
+  public refreshShouldHappen(response: HttpErrorResponse): boolean {
+    return response.status === 401;
+  }
+
+  /**
+   * Verify that outgoing request is refresh-token,
+   * so interceptor won't intercept this request
+   * @param {string} url
+   * @returns {boolean}
+   */
+  public verifyTokenRequest(url: string): boolean {
+    return url.endsWith('/refresh');
+  }
+
+  /**
+   * EXTRA AUTH METHODS
+   */
+
+  public login(payload): Observable<any> {
+    return this.http.post(environment.loginUrl, payload)
+      .do((tokens: AccessData) => this.saveAccessData(tokens))
+      .catch((error) => {
+        let message = '';
+
+        if (error.status === 403) {
+          message = 'Wrong password or email';
+        } else {
+          message = 'Server side error';
+        }
+
+        return Observable.throw(message);
+      });
+  }
+
+  public signup(payload): Observable<any> {
+    return this.http.post(environment.signupUrl, payload)
+      .catch((error) => {
+        let message = '';
+        if (error.status === 409) {
+          message = 'Already existing email address';
+        } else {
+          message = 'Server side error';
+        }
+
+        return Observable.throw(message);
+      });
+  }
+
+  /**
+   * Logout
+   */
+  public logout(): void {
+    this.tokenStorage.clear();
+  }
+
+  /**
+   * Save access data in the storage
+   *
+   * @private
+   * @param {AccessData} data
+   */
+  private saveAccessData({ token }: AccessData) {
+    this.tokenStorage
+      .setAccessToken(token);
+  }
+}

dashflux/src/app/core/services/auth/token-storage.service.ts

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs/Observable';
+
+@Injectable()
+export class TokenStorage {
+
+  /**
+   * Get access token
+   * @returns {Observable<string>}
+   */
+  public getAccessToken(): Observable<string> {
+    const token: string = <string>localStorage.getItem('accessToken');
+    return Observable.of(token);
+  }
+
+  /**
+   * Get refresh token
+   * @returns {Observable<string>}
+   */
+  public getRefreshToken(): Observable<string> {
+    const token: string = <string>localStorage.getItem('refreshToken');
+    return Observable.of(token);
+  }
+
+  /**
+   * Set access token
+   * @returns {TokenStorage}
+   */
+  public setAccessToken(token: string): TokenStorage {
+    localStorage.setItem('accessToken', token);
+
+    return this;
+  }
+
+   /**
+   * Set refresh token
+   * @returns {TokenStorage}
+   */
+  public setRefreshToken(token: string): TokenStorage {
+    localStorage.setItem('refreshToken', token);
+
+    return this;
+  }
+
+   /**
+   * Remove tokens
+   */
+  public clear() {
+    localStorage.removeItem('accessToken');
+    localStorage.removeItem('refreshToken');
+  }
+}

dashflux/src/app/core/services/auth/unauthorized.interceptor.ts

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Injectable } from '@angular/core';
+import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent, HttpErrorResponse } from '@angular/common/http';
+import { Observable } from 'rxjs/Observable';
+import 'rxjs/add/operator/do';
+
+import { AuthStore } from '../../store/auth.store';
+
+@Injectable()
+export class UnauthorizedInterceptor implements HttpInterceptor {
+    constructor(
+        private authStore: AuthStore
+    ) {}
+
+    intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
+        return next.handle(req).do(event => {}, err => {
+            if (err instanceof HttpErrorResponse && err.status === 403) {
+                this.authStore.logout();
+            }
+        });
+    }
+}

dashflux/src/app/core/services/channels/channels.service.ts

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClient, HttpResponse } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs/Observable';
+import { forkJoin } from 'rxjs/observable/forkJoin';
+
+import { environment } from '../../../../environments/environment';
+import { Channel, Thing } from '../../store/models';
+
+interface ChannelsPayload {
+  channels: Channel[];
+}
+
+@Injectable()
+export class ChannelsService {
+
+  constructor(private http: HttpClient) { }
+
+  getChannels() {
+    return this.http.get(environment.channelsUrl).switchMap((payload: ChannelsPayload) => {
+      const allChannels = forkJoin(this.createChannelsRequests(payload.channels));
+      return allChannels;
+    }).switchMap((responses: Channel[]) => {
+      responses.forEach(channel => {
+        channel.connected = channel.connected ? channel.connected : [];
+      });
+      return Observable.of(responses);
+    });
+  }
+
+  createChannelsRequests(channels) {
+    return channels.map((channel => this.http.get(environment.channelsUrl + '/' + channel.id)));
+  }
+
+  addChannel(channel: Channel) {
+    const payload = {
+      name: channel.name
+    };
+
+    if (!channel.connected.length) {
+      console.log('send add ch');
+      return this.http.post(environment.channelsUrl, payload);
+    }
+    return this.http.post(environment.channelsUrl, payload, { observe: 'response' })
+      .switchMap((res) => {
+        const id = this.getChannelIdFrom(res);
+        return forkJoin(this.createThingsConnectRequests(id, channel.connected));
+      });
+  }
+
+  private getChannelIdFrom(res: HttpResponse<Object>) {
+    const location = res.headers.get('Location');
+    return location.replace('/channels/', '');
+  }
+
+  deleteChannel(channel: Channel) {
+    return this.http.delete(environment.channelsUrl + '/' + channel.id);
+  }
+
+  editChannel(channelFormData: Channel, channel: Channel) {
+    const payload = {
+      name: channelFormData.name
+    };
+
+    const editChannel = this.http.put(environment.channelsUrl + '/' + channel.id, payload);
+
+    return editChannel.switchMap(() => {
+      const thingsToAdd = this.getThingsToAdd(channelFormData, channel);
+      if (thingsToAdd.length) {
+        return forkJoin(this.createThingsConnectRequests(channel.id, thingsToAdd));
+      } else {
+        return Observable.of([]);
+      }
+    }).switchMap(() => {
+      const thingsToDelete = this.getThingsToDelete(channelFormData, channel);
+      console.log(thingsToDelete);
+      if (thingsToDelete.length) {
+        return forkJoin(this.createThingsDisconnectRequests(channel.id, thingsToDelete));
+      } else {
+        return Observable.of([]);
+      }
+    });
+  }
+
+  getThingsToDelete(channelFormData: Channel, channel: Channel) {
+    return channel.connected.filter(thing => {
+      return channelFormData.connected.find(th => th.id === thing.id) === undefined;
+    });
+  }
+
+  getThingsToAdd(channelFormData: Channel, channel: Channel) {
+    return channelFormData.connected.filter(thing => {
+      return channel.connected.find(th => th.id === thing.id) === undefined;
+    });
+  }
+
+  createThingsConnectRequests(channelId: string , connected: Thing[]) {
+    return connected.map((connection) => {
+      return this.http.put(environment.channelsUrl + '/' + channelId + '/things/' + connection.id, {});
+    });
+  }
+
+  createThingsDisconnectRequests(channelId: string , connected: Thing[]) {
+    return connected.map((connection) => {
+      return this.http.delete(environment.channelsUrl + '/' + channelId + '/things/' + connection.id, {});
+    });
+  }
+}

dashflux/src/app/core/services/mock-auth.service.ts

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs/Observable';
+
+import { User } from '../store/models';
+
+export const MOCK_USER = {
+  email: 'asdf@asdf.com',
+  password: 'asdf'
+};
+
+export const EXISTING_USER = {
+  email: '1234@1234.com',
+  password: '1234'
+};
+
+export const INVALID_CREDENTIALS_USER = {
+  email: 'pera@pera.com',
+  password: 'pera'
+};
+
+@Injectable()
+export class MockAuthService {
+  public signup(user: User): Observable<User> {
+    if (user.email === MOCK_USER.email) {
+      return Observable.of(user).delay(5000);
+    }
+
+    if (user.email === EXISTING_USER.email) {
+      return Observable.throw(new Error('User with email already exists.'));
+    }
+
+    return Observable.throw(new Error('Failed connecting to server.'));
+  }
+
+  public login(user: User): Observable<User> {
+    if (user.email === MOCK_USER.email) {
+      return Observable.of(user).delay(1000);
+    }
+
+    if (user.email === INVALID_CREDENTIALS_USER.email) {
+      return Observable.throw(new Error('Invalid credentials'));
+    }
+
+    return Observable.throw(new Error('Cannot connect to server'));
+  }
+}

dashflux/src/app/core/services/mock-channels.service.ts

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs/Observable';
+
+import { Thing } from '../store/models';
+
+const MOCK_CHANNELS = {
+  channels: [
+    {
+      name: 'pera'
+    },
+    {
+      name: 'dzoni'
+    }
+  ]
+};
+
+@Injectable()
+export class MockChannelsService {
+  getChannels() {
+      return Observable.of(MOCK_CHANNELS).delay(1000);
+  }
+
+  addChannel(client: Thing) {
+    MOCK_CHANNELS.channels.push(client);
+    return Observable.of(1).delay(1000);
+  }
+}

dashflux/src/app/core/services/mock-things.service.ts

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs/Observable';
+
+import { Thing } from '../store/models';
+
+const MOCK_THINGS = [
+];
+
+@Injectable()
+export class MockThingsService {
+  getThings() {
+      return Observable.of(MOCK_THINGS).delay(1000);
+  }
+
+  addThing(thing: Thing) {
+    MOCK_THINGS.push(thing);
+    return Observable.of(1).delay(1000);
+  }
+}

dashflux/src/app/core/services/things/things.service.ts

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018
+ * Mainflux
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+ 
+import { HttpClient } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+
+import { environment } from '../../../../environments/environment';
+import { Thing } from '../../store/models';
+
+@Injectable()
+export class ThingsService {
+
+  constructor(private http: HttpClient) { }
+
+  getThings() {
+    return this.http.get(environment.thingsUrl);
+  }
+
+  addThing(thing: Thing) {
+    return this.http.post(environment.thingsUrl, thing);
+  }
+
+  deleteThing(thing: Thing) {
+    return this.http.delete(environment.thingsUrl + '/' + thing.id);
+  }
+
+  editThing(thing: Thing) {
+    return this.http.put(environment.thingsUrl + '/' + thing.id, thing);
+  }
+}