laravel get auth user in constructor
<?php
namespace App\Http\Controllers;
use App\User;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
class ProjectController extends Controller
{
    /**
     * All of the current user's projects.
     */
    protected $projects;
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware(function ($request, $next) {
            $this->projects = Auth::user()->projects;
            return $next($request);
        });
    }
}