Jwt Token decode - Symfony 4 - php

Question

I am trying to solve a problem related with token request. It is my newArticle function (to add new article) in the controller:
public function newArticle(Request $request, EntityManagerInterface $entityManager): View
{
$data = json_decode($request->getContent(), true);
$title = $data['title'];
$content = $data['content'];
//$published_at = $data['published_at'];
$authorizationHeader = $request->headers->get('Authorization');
list(,$token) = explode(' ', $authorizationHeader);
$jwtToken = $this->JWTEncoder->decode($token);
$user_id = $data[$jwtToken];
$userId = $this->userRepository->findOneBy(['id' => $user_id['id']]);
$article = new Article();
$article->setTitle($title);
$article->setContent($content);
$article->setPublishedAt(new \DateTime());
$article->setUser($userId);
// Todo: 400 response - Invalid input
// Todo: 404 response - Response not found
// Incase our Post was a success we need to return a 201 HTTP CREATED response with the created object
if(in_array('ROLE_USER', $article->getUser()->getRoles(), true)) {
$entityManager->persist($article);
$entityManager->flush();
return View::create("You added an article successfully!", Response::HTTP_OK);
} else {
return View::create(["You are not a user! So please register to add an article!"], Response::HTTP_BAD_REQUEST);
}
}
It is working before adding token header authorization and now I got this error:
"error": {
"code": 500,
"message": "Internal Server Error",
"message": "Notice: Undefined offset: 1",
Can someone give me any suggestions?

Answer 1

I thing your problem is this line:
$user_id = $data[$jwtToken];
You should refactor that, think it should be something like:
$user_id = $data['user_id'];
or
$user_id = $jwtToken['user_id'];
Depending on what data contain each object/array is where you should look foor. In first place the error is for calling an offset on an array, so fixing that should be fine (or have a clearer error message from the log)