URL handling

Join

The url-join action builds a new URL by joining the root and a relative path.

Name	Type	Required	Action	Info
root	string	Yes	Yes	Root path.
path	string	Yes	Yes	Relative path to root.

{"url-join" : {
                "root" : "/credit_account/user",
                "path" : {"var-get" : {
                                        "name" : "User-Id"
                                      }
                         }
              }
}