jandl-taskmanager-app/be/app/Http/Controllers/TeamController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class TeamController extends Controller
{

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('api');
    }

    public function get()
    {
        return json_decode('{
	"data": [
		{
			"id": 1,
			"name": "Team 111",
			"employees": [
				{
					"id": 1,
					"name": "Rastislav",
					"surname": "Kuttner"
				},

				{
					"id": 2,
					"name": "Lenka",
					"surname": "Nemeckova"
				},

				{
					"id": 3,
					"name": "Peter",
					"surname": "Bucan"
				}
			]
		},

		{
			"id": 2,
			"name": "Team 2",
			"employees": [
				{
					"id": 4,
					"name": "Peter",
					"surname": "Bucan"
				},

				{
					"id": 5,
					"name": "Pavel",
					"surname": "Gajdos"
				}
			]
		},

		{
			"id": 3,
			"name": "Team 3",
			"employees": [
				{
					"id": 1,
					"name": "Rastislav",
					"surname": "Kuttner"
				},

				{
					"id": 2,
					"name": "Lenka",
					"surname": "Nemeckova"
				},

				{
					"id": 3,
					"name": "Peter",
					"surname": "Bucan"
				}
			]
		}
	],
	"status": 200
}');
    }
}