title: Google home action rest api call
body: <p>I am struggling to find how to let google home do a local network rest call.</p>
  
  <p>I have some ESP8266 laying around with mDNS and rest api in them.
  Now with the google home I want it to send a rest call to the device.</p>
  
  <p>I don't want any web hooks / services like IFTTT. I don't want the communication going through these 3rd party services.</p>
  
  <p>It should work like this google home gets input (google service to understand is oke). It retrieves the action (local network, url rest call with body). Google home sends the rest api call to the local device.</p>
  
  <p>No need to have port forwarding / firewall changes.</p>