Building a Python sync tool to push AD changes to Genesys Cloud SCIM. We’re pulling deltas from LDAP, mapping attributes from a YAML config, and firing PATCH requests to /api/v2/scim/v2/Users/{id}. The script hits a wall with the 429 rate limiting logic. The docs say “Retry-After header indicates the number of seconds to wait before retrying the request,” but the response headers are coming back empty on the 429s. We’re getting {"code":"too_many_requests","message":"Request rate limit exceeded."} repeatedly. The retry loop checks response.headers.get('Retry-After') and falls back to a static backoff, yet the 429s persist for minutes even after waiting.
Here’s the retry handler logic. The state DB tracks last_modified timestamps to avoid full resyncs, and the token rotation seems fine since the first few calls succeed. The docs note “PATCH requests allow for partial updates to user profiles,” which matches our payload structure.
while attempt < max_retries:
resp = session.patch(url, json=payload, headers=headers)
if resp.status_code == 429:
delay = int(resp.headers.get('Retry-After', 60))
print(f"Rate limited, waiting {delay}s")
time.sleep(delay)
attempt += 1
continue
The Retry-After header is definitely missing in the raw response dump. Raw dump shows Retry-After: None every time. Token scope is scim:read:write.