Allow login using username or email in Laravel 5.4

Question

Now I\'ve followed the Laravel documentation on how to allow usernames during authentication, but it takes away the ability to use the email. I want to allow users to use their

Answer 1

Add this code to your login controller - Hope it will works. Reference login with email or username in one field

 public function __construct()
{
    $this->middleware('guest')->except('logout');

    $this->username = $this->findUsername();
}

public function findUsername()
{
    $login = request()->input('login');

    $fieldType = filter_var($login, FILTER_VALIDATE_EMAIL) ? 'email' : 'username';

    request()->merge([$fieldType => $login]);

    return $fieldType;
}

public function username()
{
    return $this->username;
}