How to handle an rxjs observable response that could be empty?

Question

I\'m using Angular2 and Ionic2 with typescript and would like to handle a response from the backend service where I can get

• an empty response with http 200

Answer 1

Have you tried something like:

public Update = (itemToUpdate: any): Observable<Response> => {
    return this._http
        .put("htto://localhost/api/", JSON.stringify(itemToUpdate))
        .map(res => res ? res.json() : {});
}