speedtest-tracker/database/migrations/2022_08_31_202106_create_results_table.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('results', function (Blueprint $table) {
            $table->id();
            $table->foreignId('speedtest_id')->nullable();
            $table->json('data');
            $table->timestamp('created_at')
                ->useCurrent();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        //
    }
};