angular - 如何在 Angular 6 中使用 http delete()

Question

我的服务.ts

  import { Injectable } from '@angular/core';
  import { Http, Response,Headers,RequestOptions } from '@angular/http';
  import { Observable } from 'rxjs';
  import 'rxjs/Rx';
  import{Router} from'@angular/router';
  import 'rxjs/add/operator/map';
  @Injectable()
  export class ManageJobDeleteService{
    constructor(private http: Http,private router:Router){};
    DeleteRequestToAPI(post_jobs_id:string){
       let body = JSON.stringify({post_jobs_id:post_jobs_id});
       let headers = new Headers({ 'Content-Type': 'application/json'});
       let options = new RequestOptions({ headers: headers });
        console.log(body);
        console.log(options);
      return this.http.delete('http://127.0.0.1:8000/api/employer/post_jobs/',body,options)//HERE I AM GETTING ERROR
      .map(this.extractData)
      .catch(this.handleError);
    }
   private extractData(res: Response){
      let body = res.json();
      console.log(body);
      return body || [];   
    }
    private handleError (error: any) {
      console.error(error);
      return Observable.throw(error.json().error || 'Server error');
    }
  }

错误:

Expected 1-2 arguments, but got 3.ts(2554).

请告诉我如何在 Angular 6 中使用 http 删除请求传递正文和选项。

Answer 1

删除时没有正文参数。

因此，您需要删除 body 参数。

this.http.delete('http://127.0.0.1:8000/api/employer/post_jobs/',options)

Reference

class HttpClient {
     delete(url: string, 
       options: { headers?: HttpHeaders | { [header: string]: string | string[]; }; 
       observe?: HttpObserve; params... = {}): Observable<any>
}

编辑:如何传递 post_jobs_id？

你可以使用 HttpParams:

let httpParams = new HttpParams().set('aaa', '111');
httpParams.set('bbb', '222');

let options = { params: httpParams };

this.http.delete('http://127.0.0.1:8000/api/employer/post_jobs/',options);