在Django REST中向API发送查询

I have code in Angular 2:

我有角2的代码

sendPost(){
    let headers = new Headers();
      headers.append('Content-Type', 'application/json');

    let requestOptions = new RequestOptions({headers: headers});
    requestOptions.headers = headers;

      let data = {
                  "name": "XX", 
                  "email": "[email protected]", 
                  "phone_number": "+99999995555", 
                  "address": "YYY", 
                  "code": "80-885", 
                  "city": "YHYY", 
                  "voivodeship": "ZZZZ", 
                  "description": "VVVVV"
                  };

        this.http.post(`https://127.0.0.1:8000/companies/create`, data, requestOptions).subscribe(res => {
            console.log(res.json());
          }, (err) => {
            console.log(err);
          });
  }
sendPost(