FatalThrowableError:Argument 1 passed ..::fromUser() laravel 5.6 - php

Question

I use postman to add user or to login , user has added with sucess but I get this error
"Argument 1 passed to Tymon\JWTAuth\JWT::fromUser() must be an
instance of Tymon\JWTAuth\Contracts\JWTSubject, instance of App\User
given, called in C:\Users\Web
WorkStation\Desktop\laravelapp\jwtlaravel\vendor\tymon\jwt-auth\src\JWTAuth.php
on line 54"
and I found in this ligne this founction
public function attempt(array $credentials)
{
if (! $this->auth->byCredentials($credentials)) {
return false;
}
return $this->fromUser($this->user());
}
and this my user model :
<?php
namespace App;
use Tymon\JWTAuth\Contracts\JWTSubject;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'name', 'email', 'password','username','lastname','tel','tel',
];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'password', 'remember_token',
];
public function getJWTIdentifier()
{
return $this->getKey();
}
/**
* Return a key value array, containing any custom claims to be added to the JWT.
*
* #return array
*/
public function getJWTCustomClaims()
{
return [];
}
}
and this my register controller
<?php
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\User;
use JWTFactory;
use JWTAuth;
use Validator;
use Response;
class APIRegisterController extends Controller
{
//
public function register( Request $request){
$validator = Validator::make($request -> all(),[
'email' => 'required|string|email|max:255|unique:users',
'username' =>'required',
'tel' => 'required',
'name' => 'required',
'lastname' => 'required',
'adress' => 'required',
'password'=> 'required'
]);
if ($validator -> fails()) {
# code...
return response()->json($validator->errors());
}
User::create([
'name' => $request->get('name'),
'email' => $request->get('email'),
'tel' => $request->get('tel'),
'username' => $request->get('username'),
'lastname' => $request->get('lastname'),
'adress' => $request->get('adress'),
'password'=> bcrypt($request->get('password'))
]);
$user = User::first();
$token = JWTAuth::fromUser($user);
return Response::json( compact('token'));
}
}

Answer 1

Implement the JWTSubject in your User model:
class User extends Authenticatable implements JWTSubject

Answer 2

This requires that the User Model implements this contract in your model:
use Tymon\JWTAuth\Contracts\JWTSubject;
class User extends Model implements JWTSubject {
Or
you have to update your User model to implement the Tymon\JWTAuth\Contracts\JWTSubject interface:
use Tymon\JWTAuth\Contracts\JWTSubject;
class User extends Model implements JWTSubject{
/**
* Get the identifier that will be stored in the subject claim of the JWT.
*
* #return mixed
*/
public function getJWTIdentifier()
{
return $this->getKey();
}
/**
* Return a key value array, containing any custom claims to be added to the JWT.
*
* #return array
*/
public function getJWTCustomClaims()
{
return [];
}
}