title: How can I check if my Webservice is working with Runscope and random strings?
body: <p>I have a very basic check if my webservice is still up and running by sending a query to <code>my-endpoint.com?heartbeat={{utc_datetime}}</code>. The service simply returns the value of <code>heartbeat</code>.</p>
  
  <p>However, if I set the Assertion</p>
  
  <pre><code>Text Body equals {{utc_datetime}}
  </code></pre>
  
  <p>this fails, as it is a few milliseconds different. How can I use the same variable that was send on <a href="http://runscope.com" rel="nofollow noreferrer">http://runscope.com</a>?</p>