geolook/database/migrations/2019_03_18_092742_create_settings_table.php

<?php

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

class CreateSettingsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('settings', function (Blueprint $table) {
            $table->string('key', 40)->index()->unique();
            $table->mediumText('value')->nullable();
            $table->boolean('serialized')->default(0);
        });

        $entety = new Setting();
        $entety->key = 'url_callback_bot';
        $entety->value = 'http://localhost/tbot';
        $entety->serialized = 0;
        $entety->save();

    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('settings');
    }
}