title: How to post a Zapier trigger to the REST Hook Subscribe URL?
body: <p>I'm using Zapier's <a href="https://zapier.com/developer/documentation/v1/rest-hooks/" rel="nofollow">REST Hooks</a>. In my Zap, I also have a trigger field that is used to trigger the zap when the condition is met. In my case, the trigger field is "segment" - so as to only trigger the zap when the selected segment is created. </p>
  
  <p>The trouble I'm having is POSTING the selected trigger field to the REST Hook Subscribe URL.  </p>
  
  <p>My first thought is to update the "REST Hook Subscribe URL" to be: <a href="https://domain.com/api/v1/hooks?filter=" rel="nofollow">https://domain.com/api/v1/hooks?filter=</a>{{segment}}</p>
  
  <p>Which does work to pass the trigger field as a URL paramater. However, this creates an Error for the other Triggers, because the "segment" field does not exist.</p>
  
  <p>How is this best accomplished?</p>