rest_cannot_create Unauthorized error when creating post

[aymangithub]

Hi, please i have this error when trying to create post :
Response {_body: "{"code":"rest_cannot_create","message":"Sorry, you…reate posts as this user.","data":{"status":401}}", status: 401, ok: false, statusText: "Unauthorized", headers: Headers, …}
headers
:
Headers {_headers: Map(1), _normalizedNames: Map(1)}
ok
:
false
status
:
401
statusText
:
"Unauthorized"
type
:
2
url
:
"http://aqarat.estnhad.com/wp-json/wp/v2/posts"
_body
:
"{"code":"rest_cannot_create","message":"Sorry, you are not allowed to create posts as this user.","data":{"status":401}}"
proto
:
Body

and this the code:

console.log(this.values.userData.token);

let headers = new Headers();
headers.append('Content-Type', 'application/json;charset=UTF-8');
headers.append('Access-Control-Allow-Origin', '*');
headers.append('Access-Control-Allow-Headers', 'Content-Type, Content-Range, Content-Disposition, Content-Description');
headers.append('Access-Control-Allow-Methods', 'DELETE, HEAD, GET, OPTIONS, POST, PUT');
headers.append('Authorization', 'Bearer ' + this.values.userData.token);
headers.append('Cache-Control', 'no-cache');



this.wpApiPosts.create({ "title": 'wpapi angu title', "status": 'publish', "content": 'wpapi angu' }, headers)
  .toPromise()
  .then(response => response.json())
  .then(res => {
    console.log(res);
  })
  .catch(err => {
    console.log(err);
  });