Laravel - Authentication - Authenticating Users

You are not required to use the authentication scaffolding included with Laravel's application starter kits. If you choose not to use this scaffolding, you will need to manage user authentication using the Laravel authentication classes directly. Don't worry, it's a cinch!

We will access Laravel's authentication services via the Auth facade, so we'll need to make sure to import the Auth facade at the top of the class. Next, let's check out the attempt method. The attempt method is normally used to handle authentication attempts from your application's "login" form. If authentication is successful, you should regenerate the user's session to prevent session fixation:

    
    validate([
                'email' => ['required', 'email'],
                'password' => ['required'],
            ]);
    
            if (Auth::attempt($credentials)) {
                $request->session()->regenerate();
    
                return redirect()->intended('dashboard');
            }
    
            return back()->withErrors([
                'email' => 'The provided credentials do not match our records.',
            ]);
        }
    }
	

The attempt method accepts an array of key / value pairs as its first argument. The values in the array will be used to find the user in your database table. So, in the example above, the user will be retrieved by the value of the email column. If the user is found, the hashed password stored in the database will be compared with the password value passed to the method via the array. You should not hash the incoming request's password value, since the framework will automatically hash the value before comparing it to the hashed password in the database. An authenticated session will be started for the user if the two hashed passwords match.

Remember, Laravel's authentication services will retrieve users from your database based on your authentication guard's "provider" configuration. In the default config/auth.php configuration file, the Eloquent user provider is specified and it is instructed to use the App\Models\User model when retrieving users. You may change these values within your configuration file based on the needs of your application.

The attempt method will return true if authentication was successful. Otherwise, false will be returned.

The intended method provided by Laravel's redirector will redirect the user to the URL they were attempting to access before being intercepted by the authentication middleware. A fallback URI may be given to this method in case the intended destination is not available.