title: Generate automatically web service parameters
body: <p>I have a scenario where I have to pull data from web service using REST web service consumer transformation. For example the endpoint url is <code>http://example/2015/Q1</code>. Here I have to parameterise <code>2015/Q1</code> as <code>$$DATES</code>. But I cannot change parameter values manually. I have to design my mapping in a way that it should dynamically keep increasing the dates without doing it manually in all the runs including past to future. Please suggest me a way for the same.</p>