Custom authentication through API - php

Question

I have a laravel API project. I want to be able to send a login request and get back a token depending on some custom logic. I am not using a database so i cant use the default auth.
I have set up a provider called AuthCustomProvider.
namespace App\Providers;
use Auth;
use App\Authentication\UserProvider;
use Illuminate\Support\ServiceProvider;
class AuthCustomProvider extends ServiceProvider
{
/**
* Perform post-registration booting of services.
*
* #return void
*/
public function boot()
{
Auth::provider('custom_auth', function($app, array $config) {
return new UserProvider();
});
}
/**
* Register bindings in the container.
*
* #return void
*/
public function register()
{
//
}
}
I have then added this to the config/app.php file in the providers array:
'providers' => [
App\Providers\AuthCustomProvider::class,
Then i added my custom providers driver to the config/auth.php file in the providers array:
'providers' => [
'users' => [
'driver' => 'custom_auth',
],
],
As im not using a database, I took out the model property
Lastly I created a folder called App/Authentication which i put my UserProvider.php file in which is this:
<?php
namespace App\Authentication;
use Illuminate\Contracts\Auth\UserProvider as IlluminateUserProvider;
class UserProvider implements IlluminateUserProvider
{
/**
* #param mixed $identifier
* #return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function retrieveById($identifier)
{
// Get and return a user by their unique identifier
}
/**
* #param mixed $identifier
* #param string $token
* #return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function retrieveByToken($identifier, $token)
{
// Get and return a user by their unique identifier and "remember me" token
}
/**
* #param \Illuminate\Contracts\Auth\Authenticatable $user
* #param string $token
* #return void
*/
public function updateRememberToken(Authenticatable $user, $token)
{
// Save the given "remember me" token for the given user
}
/**
* Retrieve a user by the given credentials.
*
* #param array $credentials
* #return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function retrieveByCredentials(array $credentials)
{
// Get and return a user by looking up the given credentials
}
/**
* Validate a user against the given credentials.
*
* #param \Illuminate\Contracts\Auth\Authenticatable $user
* #param array $credentials
* #return bool
*/
public function validateCredentials(Authenticatable $user, array $credentials)
{
// Check that given credentials belong to the given user
}
}
So lastly i make a function on the login controller. This is what the api call goes to:
public function Login(Request $request)
{
$user = Consultant::lookup('UserId', 1);
//Returns collection of user details (user id, username etc)
//Logic will go here in the future
$logThemIn = true;
if ($logThemIn)
{
auth()->login($user);
//return oauth2 token
}
}
So this is where im at now, if i run this, im getting the error:
'Declaration of App\Authentication\UserProvider::updateRememberToken(App\Authentication\Authenticatable $user, $token) must be compatible with Illuminate\Contracts\Auth\UserProvider::updateRememberToken(Illuminate\Contracts\Auth\Authenticatable $user, $token)'
Im new to laravel and there isnt alot of tutorials for what im trying to do that i can find. Any help is greatly appriciated

Answer 1

Change your UserProvider to this which uses Illuminate\Contracts\Auth\Authenticatable instead of App\Authentication\Authenticatable, php will load a class from the current namespace if one isn't specified.
<?php
namespace App\Authentication;
use Illuminate\Contracts\Auth\UserProvider as IlluminateUserProvider;
use Illuminate\Contracts\Auth\Authenticatable;
class UserProvider implements IlluminateUserProvider
{
/**
* #param mixed $identifier
* #return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function retrieveById($identifier)
{
// Get and return a user by their unique identifier
}
/**
* #param mixed $identifier
* #param string $token
* #return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function retrieveByToken($identifier, $token)
{
// Get and return a user by their unique identifier and "remember me" token
}
/**
* #param \Illuminate\Contracts\Auth\Authenticatable $user
* #param string $token
* #return void
*/
public function updateRememberToken(Authenticatable $user, $token)
{
// Save the given "remember me" token for the given user
}
/**
* Retrieve a user by the given credentials.
*
* #param array $credentials
* #return \Illuminate\Contracts\Auth\Authenticatable|null
*/
public function retrieveByCredentials(array $credentials)
{
// Get and return a user by looking up the given credentials
}
/**
* Validate a user against the given credentials.
*
* #param \Illuminate\Contracts\Auth\Authenticatable $user
* #param array $credentials
* #return bool
*/
public function validateCredentials(Authenticatable $user, array $credentials)
{
// Check that given credentials belong to the given user
}
}

Answer 2

You forgot to import Authenticatable. Just add:
use Illuminate\Contracts\Auth\Authenticatable;