Fix
Fix JWT Expired Token Error
JWT expiration is controlled by the exp (expiration) claim — a Unix timestamp after which the token is no longer valid.
Check Expiration
Decode the JWT and compare the exp claim to the current Unix timestamp. If current time > exp, the token is expired.
Solutions
Obtain a new token via refresh token flow, re-authenticate the user, or increase token lifetime (not recommended for access tokens).
Best Practices
Use short-lived access tokens (15 min – 1 hour) with refresh tokens. Check exp server-side on every request.