How to get a custom message on fail login credentials in Laravel? - laravel

Question

I use this code to check user credentials, but I can't figure how to change the code to get an error message when credentials fail. Used redirect and so on, but show nothing....
public function loginWithCredentials(Request $request) {
$signinEmail = $request->input('email');
$signinPassword = $request->input('password');
$user = new Users();
$errors = new MessageBag;
$user = $user
->where('email', '=', $signinEmail)
->get()->first();
if(empty($user)) {
$errors->add('error', 'Invalid credentials!');
return json_encode([
'error'=>true,
'messages'=>$errors
]);
}
$userdata = $user->toArray();
if(md5($signinPassword) != $userdata['password']) {
$errors->add('error', 'Invalid credentials!');
return redirect()->guest('auth/login');
}
Session::put('user',$userdata);
$errors->add('message0', 'Welcome ' . strtoupper($userdata['username']) . '!');
}
Now it just simple redirects me to a white page with the "invalid credentials" message. I want the message to be on login page.

Answer 1

Your code you has some flaws, consider fixing it.
Why are you mixing json response with html response?
Consider using bcrypt() for hashing your users passwords instead md5().
Add some sort of validation, Laravel has the built in validation.
Laravel ships with easy use login auth, take a look at.
So in your code needs some changes here it is:
public function loginWithCredentials(Request $request) {
$signinEmail = $request->input('email');
$signinPassword = $request->input('password');
$user = new Users();
$user = $user
->where('email', '=', $signinEmail)
->get()->first();
if(empty($user) || md5($signinPassword) != $user->password) {
return redirect()->back()->with('message', 'Invalid credentials!');
}
$userdata = $user->toArray();
Session::put('user', $userdata);
return view('view.name')->with('message', 'Welcome ' . strtoupper($userdata['username']) . '!');
}
Then in your view you write the success message like so:
#if (session('message'))
<div class="alert alert-success">
{{ session('message') }}
</div>
#endif
this example is using blade, but should be similar to other views.

Answer 2

You just need to override AuthenticatesUsers Trait method named sendFailedLoginResponse like this:
<?php
namespace App\Http\Controllers\Auth;
use Illuminate\Validation\ValidationException;
use Illuminate\Http\Request;
class LoginController extends Controller
{
use AuthenticatesUsers;
...
protected function sendFailedLoginResponse(Request $request)
{
throw ValidationException::withMessages([
'your array key' => ['Place your custom message here'],
]);
}
...
}
That's It!
I hope this will help you. :)