ace | &quot;default&quot;
      service: destination.service.host | &quot;&quot;
      path: request.path | &quot;/&quot;
      method: request.method | &quot;post&quot;
      properties:
        version: destination.labels[version] | &quot;&quot;
</code></pre><h2 id=Action>Action</h2><section><p>An action defines &ldquo;how a resource is accessed&rdquo;.</p><table class=message-fields><thead><tr><th>Field</th><th>Type</th><th>Description</th><th>Required</th></tr></thead><tbody><tr id=Action-namespace><td>