2.2 Push event
Merchant needs to prepare the API to receive the push event from HyperCardAPI. After prepared the API, merchant need to register the API at the merchant platform.
In order to secure the data, merchant need to perform data signature validation for each push event. Merchant need to use same method as request signature to get the push event signature.
If we not receive code=1, we will retry,Retry Interval： If there is no success after 24 hours, we will not try again to save resources.
| times | Time interval from last time |
|---|---|
| 2 | 1 minute |
| 3 | 5 minutes |
| 4 | 30 minutes |
| 5 | 60 minutes |
| 6 | 2 hours |
| 7 | 4 hours |
| 8 | 12 hours |
| 9 | 24 hours |