Updated the routes as of Laravel 5.3

app/Providers/RouteServiceProvider.php

@@ -2,7 +2,7 @@
 
 namespace App\Providers;
 
-use Illuminate\Routing\Router;
+use Illuminate\Support\Facades\Route;
 use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
 
 class RouteServiceProvider extends ServiceProvider
@@ -31,6 +31,8 @@ class RouteServiceProvider extends ServiceProvider
      */
     public function map()
     {
+        $this->mapWebRoutes();
+        $this->mapApiRoutes();
     }
     /**
      * Define the "web" routes for the application.

routes/api.php

+<?php
+use Illuminate\Http\Request;
+/*
+|--------------------------------------------------------------------------
+| API Routes
+|--------------------------------------------------------------------------
+|
+| Here is where you can register API routes for your application. These
+| routes are loaded by the RouteServiceProvider within a group which
+| is assigned the "api" middleware group. Enjoy building your API!
+|
+*/
+Route::get('/user', function (Request $request) {
+    return $request->user();
+})->middleware('auth:api');
\ No newline at end of file

routes/console.php

+<?php
+use Illuminate\Foundation\Inspiring;
+/*
+|--------------------------------------------------------------------------
+| Console Routes
+|--------------------------------------------------------------------------
+|
+| This file is where you may define all of your Closure based console
+| commands. Each Closure is bound to a command instance allowing a
+| simple approach to interacting with each command's IO methods.
+|
+*/
+Artisan::command('inspire', function () {
+    $this->comment(Inspiring::quote());
+})->describe('Display an inspiring quote');
\ No newline at end of file

app/Http/routes.php → routes/web.php

-<?php
 
+<?php
 /*
 |--------------------------------------------------------------------------
-| Application Routes
+| Web Routes
 |--------------------------------------------------------------------------
 |
-| Here is where you can register all of the routes for an application.
-| It's a breeze. Simply tell Laravel the URIs it should respond to
-| and give it the controller to call when that URI is requested.
+| This file is where you may define all of the routes that are handled
+| by your application. Just tell Laravel the URIs it should respond
+| to using a Closure or controller method. Build something great!
 |
 */
-
 Route::get('/', function () {
     return view('welcome');
-});
+});
\ No newline at end of file