Can't map the response to the object - json

Question

I'm trying to use Angular4 HttpClient with an observable object that I define. Unfortunately, I can't seem to map the response to the object.
The problem seems to be that I'm using httpclient (which returns json implicitly so there in no response.json() function) and as I understand it http is being deprecated? Anyway because of this the response.json() causes an error;
ERROR TypeError: response.json is not a function
The code;
import { Injectable } from '#angular/core';
import { HttpClient } from '#angular/common/http';
import 'rxjs/add/operator/map';
import {Observable} from 'rxjs/Observable';
import {JsonpModule, Jsonp, Response} from '#angular/http';
export class BucketList {
constructor(public name: string,
public creationdate: string) {
}
}
#Injectable()
export class DocumentSearchService {
constructor(private _http : HttpClient) { }
getBucketList () : Observable<BucketList> {
let serviceURL = "http://localhost:3000/listBuckets";
return this._http.get(serviceURL, {withCredentials: true, responseType: 'json'})
.map((response: Response) => <BucketList>(response.json())
.catch((error: any) => window.console.log(error)));
}
}
ngOnInit() {
// this.BucketList = this.DocumentSearchService.getBucketList
this.BucketList =
this.DocumentSearchService.getBucketList().subscribe(value => {
}
Could someone point me in the right direction please? Googling and searching on SO have yielded no answers so far...
Thanks.

Answer 1

responseType: 'json' and response.json() can be omitted because they are implied by default:
The responseType value determines how a successful response body will be parsed. If responseType is the default json, a type interface for the resulting object may be passed as a type parameter to request().
<...>
get<T>(url: string, options: {
headers?: HttpHeaders,
observe: 'events',
params?: HttpParams,
reportProgress?: boolean,
responseType?: 'json',
withCredentials?: boolean,
}): Observable<HttpEvent<T>>
Construct a GET request which interprets the body as JSON and returns the full event stream.