Improvements

• [API] Added throttling for API requests to prevent 502 errors when too many requests are sent within a short period of time.

  • We support at least 20 requests/second per API user, but this increases to up to 200 requests/second after a few minutes when we scale up.

  • You may now receive 429 Too Many Requests errors (instead of a 502 error). If you see such errors, please tune your application to send less requests/second. Or retry those failed requests after a short cooldown period.

Bug fixes

• [API] Fix for HTTP 500 error when assigning a proctor to an archived session in a deleted exam

• [Admin] When changing the roles of a user, live proctoring pre-assignments should be cleared if the user looses the role allowing them to live proctor those pre-assigned sessions.

• [Admin] Fix for inconsistent numbers sometimes showing up when looking at assignments in the proctors and pre-assignments tabs