How to redirect login plus previous URL in laravel - laravel-5.1

Question

Laravel 5.1
I'm trying to build this functionality for every method in my controller. And this is very unpractical to do and very difficult to maintain. How can I set this that is when I registered an auth middleware in a specific route then it will redirect into a login page together with the URL that trying to view/visit.
Example:
URL: public/users
If this URL will try to visit by an unauthenticated user, then the user will be redirected to a url like public/login?url=http://localhost/myproject/public/users
Then After the user loggedin successfully, the user then will be redirected into http://localhost/myproject/public/users
What I have now: (But I think not a good one to use)
public function getLoginURL(){
if(!Input::get('location-login')){
// URL is not set, redirect user to home.
return redirect('/');
}
if(auth()->check()){
// User is logged in. Go the specified URL (depends on the middleware of the url (route))
return redirect()->to(Input::get('location-login'));
}
if(!auth()->check()){
// Redirect user to a login with the URL provided
return view('pages::auth.login.url');
}
}

Answer 1

You can use the next method in middleware... no need to send the url
public function handle($request, Closure $next)
{
if (Auth::user()) {
return $next($request);
}
return redirect('/login');
}

Answer 2

Use this in your AuthController
namespace App\Http\Controllers;
use Auth;
use Illuminate\Routing\Controller;
class AuthController extends Controller
{
/**
* Handle an authentication attempt.
*
* #return Response
*/
public function authenticate()
{
if (Auth::attempt(['email' => $email, 'password' => $password])) {
// Authentication passed...
return redirect()->intended('dashboard');
}
}
}
intended() function will redirect you to your intended location.
Check the full detail here Intended redirect