Marco
2020-12-01 16:50:23
post method return an Observable so you need either to subscribe to the post method or return the Observable and subscribe to your method.
Calling the post method and getting the Observable is like preparing the request, subscribing to the Observable is like runing the query.
http.post("my/backend/service", null).subscribe();
You can find more about it in the last section of this Angular tutorial.
Because the service method returns an Observable of configuration data, the component subscribes to the method's return value.
The example use the get() method, but the problem come from the type of the response: Observable.
But subscribe is needed to do some operation after request has been served.I don't have to do anything. Do I still need to subscribe?
Do you have a reference that says that
post()will not send a request unless there is asubscribe?@Mandroid
subscribeis needed in order to get the code executed. Withoutsubscribeyou only create an observable, he will never execute itself. Just try it and you will see the request in the Network tab.@HereticMonkey I have added details to my answer with a source.