离子3/角5http.post请求头没有被传递[重复]

Question

我试图点击一个API来执行一个非常简单的get请求，但是由于我收到了一个身份验证错误，所以似乎没有提供选项，即使相同的身份验证令牌在Postman上也可以工作。代码如下：

import { HttpClient, HttpHeaders } from '@angular/common/http';



@Injectable()
export class UsersService {

  private nearby_url: string = APP_CONFIG.apiEndpoint + '/users/closest/';
  private me_url: string = APP_CONFIG.apiEndpoint + '/users/me/';
  private conversations_url: string = APP_CONFIG.apiEndpoint + '/users/conversations/';

  constructor(private http: HttpClient) { }

  createAuthorizationHeader() {
    var headers = new HttpHeaders();
    // get auth token

    // append auth token to headers
    headers.append("Authorization", 'Token xxxxxxxxxxxyyyyyyyyyyyyzzzzzzzzz');

    return headers
  }

  getPersonResponse(url): Observable<PersonResponse> {
    const options = {
      headers: this.createAuthorizationHeader()
    };

    return this.http.get(url, options)
      .map((response: Response) => response)
      .catch((error: any) => Observable.throw(error.error || 'Server error'));
  }

  getNearby(): Observable<PersonResponse> {
    return this.getPersonResponse(this.nearby_url);
  }

  getMe(): Observable<PersonResponse> {
    return this.getPersonResponse(this.me_url);
  }

  getConversations(): Observable<PersonResponse> {
    return this.getPersonResponse(this.conversations_url);
  }

}

我做错了什么？

Answer 1

换成

const headers = new HttpHeaders()
            .set("X-CustomHeader", "custom header value");

请注意，我们通过链接连续的set（）方法来构建HTTPHeaders对象。这是因为HTTPHeaders是不可变的，它的API方法不会导致对象变异。相反，调用set将返回一个包含新值属性的新HTTPHeaders对象。

同样的https://rahulrsingh09.github.io/AngularConcepts/services