Laravel Cashier & Laravel Passport - Can't Call both Traits - php

Question

I am trying to create an API. Using Laravel Cashier(With Stripe) & Laravel Passport.
public $successStatus = 200;
public function index(Request $request)
{
$validator = Validator::make($request->all(), [
'name' => 'required',
'email' => 'required|email',
'password' => 'required',
'c_password' => 'required|same:password',
]);
if ($validator->fails()) {
return response()->json(['error' => $validator->errors()], 401);
}
$input = $request->all();
$input['password'] = bcrypt($input['password']);
$user = User::create($input);
$user = Auth::user();
$success['token'] = $user->createToken('MyApp')->accessToken;
$success['name'] = $user->name;
$success['email'] = $user->email;
$stripeToken = 'tok_visa';
\Stripe\Stripe::setApiKey(env(STRIPE_SECRET));
try
{
$user->newSubscription('monthly')->create($stripeToken, [
'email' => $user->email, 'description' => 'Our First Customer'
]);
return response()->json(['success' => $success], $this->successStatus);
}
catch(Exception $e)
{
return response()->json(['success' => $success], $this->successStatus);
}
"message": "Call to a member function createToken() on null",
"exception": "Symfony\\Component\\Debug\\Exception\\FatalThrowableError",
"file": "/Users/Taylor/Documents/Websites/storingcompany/api/app/Http/Controllers/Register.php",
"line": 32,
"trace": [
Is there something That I am missing here? I am not able to call the Billable model trait from the user. In my controller it shows newSubscription not found in Authentiable instead of Billable.
My user Class:
namespace App;
use Laravel\Passport\HasApiTokens;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Laravel\Cashier\Billable;
class User extends Authenticatable
{
use Billable;
use HasApiTokens;
use Notifiable;

Answer 1

This isn't because of not 'using' a trait, this is because the $user variable is null.
You have a line of code that creates a new User record in the database. The immediate next line, you are trying to get the current authenticated user. I would assume this is some registration or signup process so there wouldn't be an authenticated user as they don't exist in the system yet.
$user = User::create(...);
$user = Auth::user(); // what do you expect this to be, besides `null`
$user->anyMethodEver(); // Call to a member function ... on null.