Angular 2 - Http Get request - pass json Object

Question

How can I do a http get request and pass an json Object

This is my json-Object

{{firstname:"Peter", lastname:"Test"}

and this Object I want to pass in the http request to get a list Of matched persons.

how is it possible? This example just shows a simple get request with a json result. How do I have to modify it?

//Component:

person:Person;
persons:Person [];
....
//Whre can I pass the person, here in the service??
getMatchedPersons(){
  this.httpService.getMatchedPersons().subscribe(
     data =>  this.persons = data,
    error => aller(error)
    );
 ); 
  

  //SERVICE
  //pass parameters?? how to send the person object here?
  getMatchedPersons(){
    return this.http.get('url').map(res => res.json());
  }

Answer 1

The Http.get method takes an object that implements RequestOptionsArgs as a second parameter.

The search field of that object can be used to set a string or a URLSearchParams object.

An example:

 // Parameters obj-
 let params: URLSearchParams = new URLSearchParams();
 params.set('firstname', yourFirstNameData);
 params.set('lastname', yourLastNameData);

 //Http request-
 return this.http.get('url', {
   search: params
 }).subscribe(
   (response) => //some manipulation with response 
 );