title: Giving value to parameter from a file to send it through HTTPPOst
body: <p>I have been struggling with Jenkins lately, and I'm stuck because I wanna send some parameters through HTTP Post, and I know how to do it, but the thing is that I am saving a Http request response to a file in my workspace, and then I want to use that file, read it and send the text I saved previously to a new HTTP Request, does anyone have any idea how can I achieve this?</p>
  
  <p>Thanks in advance!!!</p>