Add jwt function is token expired

jwt/jwt.go

@@ -2,6 +2,7 @@ package jwt
 
 import (
 	"crypto/rsa"
+	"errors"
 	"fmt"
 
 	"git.simts.cc/common/lib/types"
@@ -61,3 +62,7 @@ func Decode(tokenString string, key string) (types.Data, error) {
 
 	return types.Data(claims), nil
 }
+
+func IsExpired(err error) bool {
+	return errors.Is(err, jwt.ErrTokenExpired)
+}