How do I correctly to handle OAuth token expiration in Genesys Cloud Messaging API for BYOC scenarios? We are experiencing intermittent 401 Unauthorized errors when our backend service attempts to send outbound messages via the /api/v2/conversations/messaging endpoint. This occurs specifically during peak traffic hours in the APAC region (Asia/Singapore timezone), suggesting a race condition between token refresh cycles and high-volume request bursts.
Our current implementation uses a long-lived access token generated via the client credentials flow, which expires every 8 hours. However, we notice that the token invalidation seems to trigger prematurely under load, even though the expiration timestamp has not been reached. This results in failed message deliveries and requires manual intervention to regenerate tokens, disrupting our automated workflows.
- Verified that the client ID and secret are correctly configured in the Genesys Cloud developer console and match the environment variables used in our application.
- Implemented a simple retry mechanism with exponential backoff, but this only masks the issue temporarily and does not resolve the underlying token validation failure.
Any insights into best practices for managing token lifecycle in high-throughput messaging environments would be appreciated.