angular 吧http请求封装return promise对象 怎么能拿到响应头

Question

  async request(method, url, data = {}) {
    const headers = {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${localStorage.getItem('token')}`,
    };
    const trim = s => s === undefined || s === null ? '' : s;
    const args: any = [[
      // isDevMode() ? '/api' : '//yanduapi.t.oc1.xyz/v2',
      window['baseUrl'],
      url.replace(/:([^&;/?]+)/g, (...s) => trim(data[s[1]])),
    ].join('/')];

    const params = Object.keys(data).reduce((obj, key) => {
      obj[key] = trim(data[key]);
      return obj;
    }, {});
    if (method === 'get' || method === 'delete') {
      args.push({ headers, params });
    } else {
      args.push(params, { headers });
    }

    try {
      const requestData_old = JSON.parse(localStorage.getItem('requestData'));

      const requestData = {
        url: args[0],
        method: method,
        timestamp: (new Date()).getTime()
      }

      return await this.http[method](...args).toPromise();

      // }
    } catch (e) {
      console.log(e)
      const { status, statusText } = e;
      if (status != 401) {
        this.notify.create('error', `${status}`, e.error.message);
      }
      if (status === 401) {
        localStorage.clear();
        this.util.navigate(['/user/login']);
      }
      throw e;
    }
  }

  delete = (url) => (data?) => this.request('delete', url, data);
  get = (url) => (data?) => this.request('get', url, data);
  patch = (url) => (data?) => this.request('patch', url, data);
  post = (url) => (data?) => this.request('post', url, data);
  put = (url) => (data?) => this.request('put', url, data);

调用

  async getData(index?) {
    this.loading = true;
    this.currentPage = index;
    const  data  = await this.api.get('accounts')({
      // search_all: this.search.value.searchAll,
      page: this.currentPage,
      'per-page': this.limits
    }).then((res)=>{
      console.log(res.header)
    });
    console.log(data)
    // this.loading = false;
    // this.data = data;
    // this.totalCount = data._meta.totalCount;
  }

如何能拿到响应头里的内容呢 求解

Answer 1

observe: 'response'