title: How to send Mirth HTTP connector using POST
body: <p>We have a mirth instance sending out using a POST method to a rest service.</p>
  
  <p>However, Mirth seems to be sending at least one parameter through the URL (like a GET) instead.</p>
  
  <p>We have the following options set:</p>
  
  <p>Method: POST
  Multipart: No
  Send Response to: none
  Response Content: Headers and Body as XML
  Authentication: No
  Use Persistent Queues: No
  Charset Encoding: UTF-8</p>
  
  <p>Then we have 5 query parameters - </p>
  
  <p>One of which is the name "file" and value of "${message.rawData}".  I am watching the Apache request log and can see this attribute/value pair come across the URL (as if it were doing a GET instead of a POST).</p>
  
  <p>No headers</p>
  
  <p>Content Type text/plain
  Content: literal "no data."</p>
  
  <p>We are using Mirth Connect Server 2.2.1.5861</p>
  
  <p>How do I force this value ('file') to come across the POST?</p>