I have a very limited knowledge about node and nob-blocking IO so forgive me if my question is too naive.

In order to return needed information in response body, I need to

* Make a call to 3rd party API
* Wait for response
* Add some modifications and return JSON response with the information I got from API.

My question is.. how can I wait for response? Or is it possible to send the information to the client only when I received response from API (as far as I know, connection should be bidirectional in this case which means I won't be able to do so using HTTP).

And yet another question. If one request waits for response from API, does this mean than other users will be forced to wait too (since node is single-threaded) until I increase numbers of threads/processes from 1 to N?