Overload request headers and params with HttpClient get

As of Angular 5.0.0-beta.6 (2017-09-03), you can now pass in both headers and parameters using the below syntax:

const httpOptions = {
  headers: { 'Content-Type': 'application/json' },
  params: {'include': 'somethingCool'}
};

this.http.get('http://www.example.org', httpOptions);

Source: https://github.com/angular/angular/pull/18490

Here is something that passes both headers and parameters in with a get, and it uses HttpParamsOptions to serialize an object into parameters that the HttpClient can cope with.

localvar: any;

const headers = new HttpHeaders().set('Content-Type', 'application/json');

const myObject: any = { this: 'thisThing', that: 'thatThing', other: 'otherThing'};
const httpParams: HttpParamsOptions = { fromObject: myObject } as HttpParamsOptions;

const options = { params: new HttpParams(httpParams), headers: headers };

this.httpClient.get<any>('https://server:port/api/endpoint', options)
  .subscribe((data: any) => {
      this.localvar = data;
});