rPPSR NZ Interface; enhanced interface to support request throttling

When the PPSR goes live, MBIE may impose a throttling limit; limiting API requests to 60 per minute per API resource per API consumer.

This means that if too many requests are sent by finPOWER Connect within a 60 second period, subsequent requests may fail with an HTTP Status Code 429 and MBIE Error Code 900800; Message throttled out; You have exceeded your Quota.

Note, this includes requests made from all running sessions of finPOWER Connect using the same PPSR credentials.

Therefore, finPOWER Connect now includes the following strategy:

• If the request fails with a Status 429, finPOWER Connect will wait for a short period and then try sending the request again. This happens 5 times with an increasing wait period of 2, 4, 8, 16 and 32 seconds (a total potential wait of 62 seconds).

• If the request still fails after the retry attempts, the next API request from finPOWER Connect will be delayed at least 15 seconds after the failure.