Lumen Authorization - Call to a member function parameter() on array - php

Question

Trying to authorize a user to update a post if the user id and the post user_id matches. I have a custom callback for authorization in the AuthServiceProvider which checks for 'Authorization' header, which is an API key in the boot() function.
$this->app['auth']->viaRequest('api', function ($request) {
if($request->header('Authorization')) {
$user = $this->getUserFromAuthorizationHeader($request);
if (!empty($user)) {
$request->request->add(['userid' => $user->id]);
}
return $user;
}
});
The function getUserFromAuthorizationHeader gets a Request $request parameter and extracts the Authorization header, which is an api key, and then returns a User object.
I defined a gate update-post which checks the user that is returned from the callback and the post passed when calling the gate update-post from a controller.
Gate::define('update-post', function($user, $post){
Log::info($user);
return $user->id == $post->user_id;
});
The way I am calling the Gate in my PostController is by the following
...
$user = $this->getUserFromRequest($request);
if(Gate::denies('update-post', $post)) {
return response("Unauthorized.", 401);
}
...
I logged - using Log:: info() - the $user and $post variables in my Gate and I can successfully see the correct user and post objects being passed, but I get the error Call to a member function parameter() on array and I can't understand why exactly I am getting it.

Answer 1

You probably need to convert into collection before comparing if you are getting the array like this
$post = collect($post);
$user = collect($user);
Gate::define('update-post', function($user, $post){
Log::info($user);
return $user->id == $post->user_id;
});
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