How should I modify the response to an HTTP request and easily access it before return it out from Observable?

Question

I\'m upgrading to Angular to version 5, I was using @angular/http before and now I need to update to @angular/common/http and use HttpClient

I a

Answer 1

You can create your own Observable that wraps the http.get and return your manipulated response, in this example it is the manipulatedAccountsResponse object:

getAll(): Observable {
  return Observable.create(observer => {
    this.http.get('/accounts')
             .subscribe((result) => {
               const manipulatedAccountsResponse = result;
               // do something with result.
               manipulatedAccountsResponse.setTotal(100);
               observer.next(manipulatedAccountsResponse);
               // call complete if you want to close this stream (like a promise)
               observer.complete();
            });
  });

}