How To Display "You Need To Login First"

You can either do it in routes file with:

->middleware('auth');

or directly in a Controller with:

public function __construct()
    {
        $this->middleware(['auth']);
    }

and here is how to deal with it once it detects unauthenticated user:

https://laravel.com/docs/5.6/authentication#protecting-routes

Showing the user the login page usually lets them know they need to login?

Unauthenticated user can't access the page that is under auth middleware, it automatically redirects the user to /login, but you can change this if you want, in app\Exceptions\Handler.php you could overwrite the unauthenticated function

/**
 * Convert an authentication exception into a response.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  \Illuminate\Auth\AuthenticationException  $exception
 * @return \Illuminate\Http\Response
 */
protected function unauthenticated($request, AuthenticationException $exception)
{
    return $request->expectsJson()
        ? response()->json(['message' => $exception->getMessage()], 401) // <-- YOUR MESSAGE
        : redirect()->guest(route('your-route')); // <-- YOUR ROUTE
}

this function is in parent class, and make sure you import this class at the top.

use Illuminate\Auth\AuthenticationException;

So, you'd just attach a message on the redirect, and then check for and display the message in the login view.

protected function unauthenticated($request, AuthenticationException $exception)
{
    return $request->expectsJson()
                ? response()->json(['message' => $exception->getMessage()], 401)
                : redirect()->guest(route('login'))->with('message', 'You Need to login first to continue');
}

and in the login view with the form

@if (session('message'))
    <div>{{ session('message') }}</div>
@endif 

// form to login

@Cronix

redirect()->guest(route('login'))->with('message', 'You Need to login first to continue');

Isn't with() method immediately after route() ? or this works too?

redirect()->guest(route('login')->with('message', 'You Need to login first to continue'));

Pretty sure it's the first one. I've never tried your 2nd way. I was just basically using the example from here:

https://laravel.com/docs/5.6/redirects#redirecting-with-flashed-session-data

@Cronix ok, thanks)

@Cronix really helpful thanks sir @Snapey just too make sure for user why they redirect to login page so i need to show the message

@aurawindsurfing i know that sir, but what i expect is showing the message in login page