Ref- https://github.com/itsmeusama/awesome-wso2-esb-ei http://localhost:8290/eidemo2/hello1 http://localhost:8290/gettitle1/user1 <!-- in postman Request type = POST Url = localhost:8290/e5/concatnation?title=hello headers ---------- Content_Type = application/json body->row ------------- { "first_name":"wso2", "last_name":"virtusa" } output in Params->Body ------------------------- { "hello": "wso2 virtusa" } -->