How to make a synchronous call in angular 5?

Question

So, I was trying to get the solution of this problem. But, somehow I am unable to do so, May be because of the lack of knowledge in angular 5. This is my service:

Answer 1

Subscribe to GetCurrentUserData() the http call is async (every browser api call is async, because the javascript engine runs in a single thread (google for browser event loop for more, this is not an angular issue))

this.GetCurrentUserInformation().subscribe((data: ResponseData) => {
        if (this.responseData.code != responseCodes.success) {
            this.googleInit();
        }
});