jwt.TimeFunc override: thread-safety
Author: imyixiaoCreated Aug 20, 2025Updated Aug 27, 2026
this is more like a question instead of an issue:
- context: we want to override
jwt.TimeFuncto always readnowfrom request header
func ApplyOverrideJWTTimeFunc(header http.Header) {
jwt.TimeFunc = OverrideJWTTimeFunc(header)
}
func OverrideJWTTimeFunc(header http.Header) func() time.Time {
return func() time.Time {
return time.Unix(GetRequestTime(header), 0)
}
}
// this func read time from request.header
func GetRequestTime(header http.Header)- concern: because this override jwt globally, will it be thread-safe or any unexpected risk when we deploy to production
Source: golang-jwt/jwt