Retrieve Response Asynchronously
All the request max lifetime is 20 seconds. If any request will be taken more than 20 seconds then you can retrieve the response asynchronously by using retrieveId.
You'll need to use the same service as original request for fetch request. Fetch request is there for each service.
Until response is ready, You'll have to send this request. Once response is ready you'll be able to take the result.
For more information: Asynchronous Data Fetching