Angular 12 HttpInterceptor等待，直到http客户端方法完成

import { Injectable } from '@angular/core';
import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable()
export class AuthInterceptor implements HttpInterceptor {
  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    // 在请求中添加身份验证的请求头
    const modifiedRequest = request.clone({
      setHeaders: {
        Authorization: 'Bearer myAuthToken'
      }
    });
    
    return next.handle(modifiedRequest);
  }
}

import { NgModule } from '@angular/core';
import { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';

import { AuthInterceptor } from './auth-interceptor';

@NgModule({
  imports: [
    HttpClientModule
  ],
  providers: [
    { provide: HTTP_INTERCEPTORS, useClass: AuthInterceptor, multi: true }
  ]
})
export class AppModule { }

import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-my-component',
  template: `
    <button (click)="getData()">Get Data</button>
    <div>{{ responseData }}</div>
  `
})
export class MyComponent {
  responseData: any;
  
  constructor(private http: HttpClient) {}
  
  getData() {
    this.http.get('https://api.example.com/data')
      .subscribe(
        data => {
          this.responseData = data;
          console.log('Request completed', data);
        },
        error => {
          console.error('Request failed', error);
        }
      );
  }
}