Python SDK token refresh loop ignoring expiration

General Discussion
1

The Genesys Python SDK claims to handle token refresh automatically, but my long-running script still hits 401 Unauthorized after 3600 seconds. I’m using genesyscloud.platform_client with oauth_client_credentials. The internal retry logic seems to race the refresh. I’ve tried:

  • Setting auto_refresh=True in the config
  • Manually calling refresh_token() before each batch
  • Increasing the retry_timeout

Here’s the config block:

config = genesyscloud.Configuration()
config.oauth_client_id = "..."
config.oauth_client_secret = "..."
2

The Python SDK’s auto-refresh is notoriously flaky in long-running processes because the underlying requests session doesn’t always hook into the token expiry event correctly. You’re seeing that race condition because the background thread tries to refresh while the main thread sends a request with the stale token.

Since I live in Node.js land, I can’t give you the exact Python import, but the pattern is identical to what we do with the JS SDK. You shouldn’t rely on the SDK’s internal refresh for heavy lifting. Instead, wrap your API calls in a custom retry handler that explicitly checks the token expiry timestamp and forces a refresh before the request hits the wire.

Here’s how I structure this in Node.js using the purecloudplatformclientv2 SDK. It’s the same logic for Python: get the token, check expires_in, and refresh if it’s within a safety buffer (say 5 minutes).

const platformClient = require('purecloudplatformclientv2');

let currentToken = null;
let tokenExpiry = 0;
const REFRESH_BUFFER_MS = 300000; // 5 mins

async function ensureValidToken() {
 const now = Date.now();
 if (!currentToken || now + REFRESH_BUFFER_MS >= tokenExpiry) {
 console.log('Token expired or nearing expiry. Refreshing...');
 // Assuming you have your config set up
 const config = platformClient.Configuration.getDefaultConfiguration();
 // This triggers the OAuth2 flow
 const oauth = new platformClient.OAuthApi();
 const response = await oauth.postOAuthToken({
 grant_type: 'client_credentials',
 client_id: process.env.GENESYS_CLIENT_ID,
 client_secret: process.env.GENESYS_CLIENT_SECRET
 });
 
 currentToken = response.access_token;
 tokenExpiry = now + (response.expires_in * 1000);
 console.log(`Token refreshed. Expires in ${response.expires_in}s`);
 }
 return currentToken;
}

// Usage in your long-running task
async function fetchUserData(userId) {
 const token = await ensureValidToken();
 
 // Inject the fresh token into the API client configuration
 const config = platformClient.Configuration.getDefaultConfiguration();
 config.accessToken = token;
 
 const usersApi = new platformClient.UsersApi(config);
 return await usersApi.getUser({ userId, expand: ['profilePhoto'] });
}

In Python, you’d do something similar with genesyscloud.platform_client. Don’t let the SDK manage the token lifecycle for you if it’s a daemon process. Handle it explicitly. You’ll save yourself hours of debugging 401s.

Also, check your retry_timeout settings. If it’s too low, the SDK gives up before the refresh completes. Set it higher, but honestly, manual control is cleaner.