dairy-app-api/app/Http/Middleware/Authenticate.php

<?php

namespace App\Http\Middleware;

use Illuminate\Auth\Middleware\Authenticate as Middleware;
use Illuminate\Http\Exceptions\HttpResponseException;

class Authenticate extends Middleware
{
    protected function unauthenticated($request, array $guards)
    {
        throw new HttpResponseException(response()->json([
            'status' => false,
            'message' => 'Unauthorized'
        ], 403));
    }
}