title: How to use JSON variables in an Azure DevOps pipeline
body: <p>I'm not sure if this is possible as I've searched but couldn't find anything related, but didn't find anything saying it's not!</p>
  
  <p>In my Azure DevOps build pipeline I have a variable which holds a JSON value e.g:</p>
  
  <p><a href="https://i.stack.imgur.com/HCJGu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HCJGu.png" alt="enter image description here"></a></p>
  
  <p>Is there anyway of using a value of a json variable within a task? I've tried (on the off chance) <code>$(myJson.message)</code> and <code>$(myJson).message</code> but these didn't work.</p>
  
  <p>So do pipeline variables only support simple types? Or is there a way round this?</p>