JWT

Fixing JWT Token Expiry Errors That Only Appear Under Load in FastAPI

JWT authentication works perfectly in development but starts returning intermittent "Token Expired" errors under production load. Learn the real causes, including clock drift, queue delays, load balancing, refresh token issues, and how to build resilient authentication systems in FastAPI.

Sep 15, 2026 6m read 👁 1

Fixing Django REST Framework JWT Auth Tokens That Expire Mid-Session

Your Django REST Framework API works perfectly after login, but users suddenly receive 401 Unauthorized errors while actively using the application. In most cases, JWT authentication isn't broken—the access token has simply expired without a proper refresh strategy.

Jul 21, 2026 5m read 👁 17