title: NodeJS adding webhook secret
body: <p>So there's this website that needs to send data to my nodejs application, and their instruction is this &quot;Use the secret to verify that the events posted to your URL were sent by this website.&quot;</p>
  <p>But I don't know what attribute to add in the my http header. Is there an option/key/attribute where I can add this secret key to my nodejs app?</p>