Add token validity check (#483)

cli/cmd/tap.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"errors"
 	"fmt"
+	"github.com/up9inc/mizu/cli/up9"
 	"os"
 
 	"github.com/creasty/defaults"
@@ -62,6 +63,12 @@ Supported protocols are HTTP and gRPC.`,
 						logger.Log.Errorf("failed to log in, err: %v", err)
 						return nil
 					}
+				} else if isValidToken := up9.IsTokenValid(config.Config.Auth.Token, config.Config.Auth.EnvName); !isValidToken {
+					logger.Log.Errorf("Token is not valid, please log in again to continue")
+					if err := auth.Login(); err != nil {
+						logger.Log.Errorf("failed to log in, err: %v", err)
+						return nil
+					}
 				}
 			}
 		}