authentication not work - php

Question

I have asked this question already but still I didn't get an answer.
How to login using Github, Facebook, Gmail and Twitter in Laravel 5.1?
auth not working
I am able to store data from gmail, github in the database.
Controller
if (Auth::attempt(['email' => $email, 'password' => $user_id]))
{
return redirect()->intended('user/UserDashboard');
}
else
{
//here i am going to insert if user not logged in already
return redirect()->intended('user/UserDashboard');
}
My problem is if I echo any data instead of return redirect()->intended('user/UserDashboard'); then it displays. If I add redirect then it doesn't work.

Answer 1

I'm not entirely sure how it works when using google for oAuth, but I assume your desired flow is:
User returns from google.
Check if user already exists, otherwise create new user record.
Log user in.
Redirect to dashboard.
Assuming the above your methods would look something like this.
Controller
public function google()
{
// Redirect user to google for authentication
return Socialite::driver('google')->redirect();
// In Laravel 5.0 this would be
// return Socialize::with('google')->redirect();
}
public function googleCallback()
{
// Return from google with user object
$googleUser = Socialite::driver('google')->user();
// In Laravel 5.0 the above would be
// $user = Socialize::with('google')->user();
// If user exists, retrieve the first() record,
// otherwise create a new record
$user = User::firstOrCreate([
'user_id' => $googleUser->id,
'name' => $googleUser->name,
'password' => $googleUser->id,
'email' => $googleUser->email,
'avatar' => $googleUser->avatar
]);
// Login the user
Auth::login($user, true);
// Redirect to the dashboard
return Redirect::intended('user/UserDashboard');
}