Looking for advice on a persistent token refresh issue we are encountering within our AppFoundry Premium App integration. The application manages multi-tenant Genesys Cloud environments using a custom OAuth2 client credentials flow. Recently, after the platform updated their token introspection endpoints, we have observed a 10-second delay followed by a 401 Unauthorized response when attempting to refresh access tokens for specific orgs.
The sequence is as follows:
The app requests a new access token via /oauth2/token.
The response includes a expires_in value of 3600.
At T+3590, the app proactively attempts to refresh the token.
The refresh fails with invalid_grant, citing The refresh token has been revoked or expired.
Interestingly, if we wait for the token to fully expire and then request a new one, it succeeds. However, this creates a 10-second window where API calls fail. We are using the genesys-cloud-nodejs-client v5.1.2 for the refresh logic. The error logs show the following payload:
{
"status": 401,
"code": "invalid_grant",
"message": "The refresh token has been revoked or expired",
"correlationId": "abc-123-def-456"
}
We have verified that the client ID and secret are correct and have not been rotated. The issue seems isolated to orgs that have MFA enforced for API users, although the documentation for Multi-Org OAuth Handling does not explicitly mention MFA affecting the client credentials flow for service accounts.
Is there a known change in the token revocation policy for service accounts in the last 30 days? We are considering switching to a shorter expires_in value via a custom scope, but we are unsure if that is supported for AppFoundry apps. Any insights into whether this is a platform-side rate-limiting issue or a bug in the token validation service would be appreciated. We are running this integration on AWS US-West-2 to minimize latency to the Genesys Cloud US-East endpoints.
Have you tried isolating the token refresh logic from the primary AppFoundry execution thread? While my day-to-day revolves around WFM schedule publishing and shift swap management, I have seen similar latency spikes when external authentication loops interfere with background processes. In our environment, when we were integrating custom validation for agent self-service preferences, we noticed that synchronous token checks were blocking the main event loop, causing exactly those 10-second delays before the 401 errors.
The issue often stems from how the custom JWT validation interacts with the multi-org context switching. If the validation logic is not properly scoped to the current tenant ID, the system might be attempting to refresh tokens for inactive or misconfigured orgs, leading to the observed lag.
Here is a breakdown of how to adjust the integration:
Implement Asynchronous Refresh: Move the token refresh logic to a background worker or use async/await patterns to prevent blocking the AppFoundry UI thread. This ensures the user experience remains responsive even if the backend is negotiating credentials.
Cache Tenant-Specific Tokens: Maintain a separate cache for each organization’s access token. Ensure the cache key includes the unique org ID to prevent cross-tenant token conflicts.
Add Retry Logic with Exponential Backoff: Configure the client credentials flow to retry failed refresh attempts with increasing delays. This helps mitigate transient network issues without immediately throwing a 401 error.
Validate JWT Claims Locally: Before making a remote introspection call, validate the JWT claims locally if possible. This reduces the dependency on external endpoints and speeds up the authentication process.
This approach helped us stabilize our integration and eliminate the latency issues. It might be worth checking if your custom validation is inadvertently triggering unnecessary introspection calls for every request.
According to the docs, they say that multi-tenant integrations should handle token caching locally rather than hitting the introspection endpoint on every request.