小编SGR*_*SGR的帖子

我试图做一个http get()通过传递某些请求values中headers，现在我更换headers这样的：

import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Injectable } from '@angular/core';
import {ICustomer} from 'src/app/models/app-models';

@Injectable({
  providedIn: 'root'
})
export class MyService {
private baseUrl = '....api url....';
public authKey = '....auth_key......';

  constructor(private http: HttpClient) { }

  public async AllCustomers(): Promise<ICustomer[]> {
   const apiUrl = `${this.baseUrl}/customers`;

   return this.http.get<ICustomer[]>(apiUrl ,
    {headers: new HttpHeaders({Authorization: this.authKey})}).toPromise();<=====
  }

}

当我像这样替换标题时：

headers: new HttpHeaders({Authorization: this.authKey})

默认标头值（即 Content-Type : application/json）将被上述标头替换。

我没有替换标题如何添加custom headers，而是像这样尝试： …