Error in JWT authentication lumen 5.2

Question

I am quite new in laravel/lumen framework. I am using lumen 5.2 to build a restful API. For authentication, I am trying to implement JWT authentication I am following this https://laravelista.com/json-web-token-authentication-for-lumen article for guidance. I install and configure this https://github.com/tymondesigns/jwt-auth packages. It works fine and gives me following error if i do not provide a token {"error":"token_not_provided"} .But when i am trying to generate a token by passing email and password in a post request then it fails and give following error.

in AuthManager.php line 137
at Application->Laravel\Lumen\Concerns\{closure}('8', 'Undefined index: provider', 'D:\xamp\htdocs\lumen_api\vendor\illuminate\auth\AuthManager.php', '137', array('name' => 'api', 'config' => array('driver' => 'token'))) in AuthManager.php line 137
at AuthManager->createTokenDriver('api', array('driver' => 'token')) in AuthManager.php line 77
at AuthManager->resolve('api') in AuthManager.php line 57
at AuthManager->guard() in AuthManager.php line 244
at AuthManager->__call('once', array(array('email' => 'testadmin@gmail.com', 'password' => 'password'))) in IlluminateAuthAdapter.php line 39
at AuthManager->once(array('email' => 'testadmin@gmail.com', 'password' => 'password')) in IlluminateAuthAdapter.php line 39
at IlluminateAuthAdapter->byCredentials(array('email' => 'testadmin@gmail.com', 'password' => 'password')) in JWTAuth.php line 108
at JWTAuth->attempt(array('email' => 'testadmin@gmail.com', 'password' => 'password')) in Facade.php line 216
at Facade::__callStatic('attempt', array(array('email' => 'testadmin@gmail.com', 'password' => 'password'))) in AuthController.php line 45
at JWTAuth::attempt(array('email' => 'testadmin@gmail.com', 'password' => 'password')) in AuthController.php line 45
at AuthController->postLogin(object(Request))
at call_user_func_array(array(object(AuthController), 'postLogin'), array(object(Request))) in Container.php line 507
at Container->call(array(object(AuthController), 'postLogin'), array()) in RoutesRequests.php line 581
at Application->callControllerCallable(array(object(AuthController), 'postLogin'), array()) in RoutesRequests.php line 548
at Application->callLumenController(object(AuthController), 'postLogin', array(true, array('uses' => 'App\Http\Controllers\AuthController@postLogin'), array())) in RoutesRequests.php line 521
at Application->callControllerAction(array(true, array('uses' => 'App\Http\Controllers\AuthController@postLogin'), array())) in RoutesRequests.php line 489
at Application->callActionOnArrayBasedRoute(array(true, array('uses' => 'App\Http\Controllers\AuthController@postLogin'), array())) in RoutesRequests.php line 474
at Application->handleFoundRoute(array(true, array('uses' => 'App\Http\Controllers\AuthController@postLogin'), array())) in RoutesRequests.php line 376
at Application->Laravel\Lumen\Concerns\{closure}() in RoutesRequests.php line 624
at Application->sendThroughPipeline(array(), object(Closure)) in RoutesRequests.php line 382
at Application->dispatch(object(Request)) in RoutesRequests.php line 327
at Application->run(object(Request)) in index.php line 29

Here is my Authcontroller code:

namespace App\Http\Controllers;

use Illuminate\Http\Exception\HttpResponseException;
use JWTAuth;
use Tymon\JWTAuth\Exceptions\JWTException;
use Illuminate\Http\Request;
use Illuminate\Http\Response as IlluminateResponse;

class AuthController extends Controller{


/**
 * Handle a login request to the application.
 *
 * @param \Illuminate\Http\Request $request
 * @return \Illuminate\Http\Response
 */
public function postLogin(Request $request)
{
    try
    {
        $this->validate($request, [
            'email' => 'required|email|max:255', 'password' => 'required',
        ]);
    }
    catch (HttpResponseException $e)
    {
        return response()->json([
            'error' => [
                'message'     => 'Invalid auth',
                'status_code' => IlluminateResponse::HTTP_BAD_REQUEST
            ]],
            IlluminateResponse::HTTP_BAD_REQUEST,
            $headers = []
        );
    }

    $credentials = $this->getCredentials($request);

    try
    {
        // attempt to verify the credentials and create a token for the user
        //$customClaims = ['email' => 'rahul.rksaini@gmail.com', 'password' => 'password'];
        if ( ! $token = JWTAuth::attempt($credentials))
        {
            return response()->json(['error' => 'invalid_credentials'], 401);
        }
    }
    catch (JWTException $e)
    {
        // something went wrong whilst attempting to encode the token
        return response()->json(['error' => 'could_not_create_token'], 500);
    }

    // all good so return the token
    return response()->json(compact('token'));
}

/**
 * Get the needed authorization credentials from the request.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return array
 */
protected function getCredentials(Request $request)
{
    return $request->only('email', 'password');
}

}

===================================
my .env file content

APP_ENV=local
APP_DEBUG=true
APP_KEY=swe09w8w7r6t5y4uio321!@wsceszwer

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=api_db
DB_USERNAME=root
DB_PASSWORD=

CACHE_DRIVER=memcached
QUEUE_DRIVER=sync

JWT_SECRET=cv4d4se065r1td0sw6e8d9za9q102jhes060a3wer

AUTH_DRIVER=jwt
AUTH_MODEL=\App\Models\User
AUTH_TABLE=users

I google it a lot but not get any solution yet. Please help me to figure it out.

thank in advance.

Here is the directory structure of vendor folder

![][vender folder]

Answer 1

You may write your own auth configuration file in config/auth.php (if it doesn't exist, you may create on yourself). See configuration here.

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Authentication Defaults
    |--------------------------------------------------------------------------
    |
    | This option controls the default authentication "guard" and password
    | reset options for your application. You may change these defaults
    | as required, but they're a perfect start for most applications.
    |
    */

    'defaults' => [
        'guard' => env('AUTH_GUARD', 'api'),
    ],

    /*
    |--------------------------------------------------------------------------
    | Authentication Guards
    |--------------------------------------------------------------------------
    |
    | Next, you may define every authentication guard for your application.
    | Of course, a great default configuration has been defined for you
    | here which uses session storage and the Eloquent user provider.
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | Supported: "session"
    |
    | NOTE: "token" driver is not supported in JWT Auth
    |
    */

    'guards' => [
        'api' => [
            'driver' => 'session',
            'provider' => 'users'
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | User Providers
    |--------------------------------------------------------------------------
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | If you have multiple user tables or models you may configure multiple
    | sources which represent each model / table. These sources may then
    | be assigned to any extra authentication guards you have defined.
    |
    | Supported: "database", "eloquent"
    |
    */

    'providers' => [
        'users' => [
            'driver' => 'eloquent',
            // We should get model name from JWT configuration
            'model'  => app('config')->get('jwt.user'),
        ],
    ],

];

Fortunately, I create a simple JWT Authentication implemented in Lumen here.