How to return response after async call is finished?

Question

I have some express.js app and I have a "Pay" button in my UI.

When I click on it, I want the server to call the checkout API of Stripe and then return a response only when I get the response from the API call (card can be expired, for example).

I know it's a bad practice, but how can my response wait till the async call finishes?

And what's the right way to do such call in express.js?

Why do you want to do this? What is preventing you from doing a classic AJAX call and acting once you have a answer? — DrakaSAN, Aug 26 '16 at 14:15
Surely the Strip API provides callbacks which you can hook into to send the response? — Ian Brindley, Aug 26 '16 at 14:16

score 0 · Answer 1 · answered Aug 26 '16 at 14:35

0

If I'm understanding correctly, mind you I'm not too experienced in express.js, but in js you use functional programming.

some_api_call(params)
   .then(isSuccessfulCallback)
   .then(getResponse)
   .catch(e => {
       console.warn(e);
   });

answered Aug 26 '16 at 14:35

John Luke Garofalo

130
8

How to return response after async call is finished?

1 Answers1