Set Maps API key in Script Editor

Question

As far as I understand, in order to track our quota usage, we need to provide our API key to the Google App Service on the service we are planning to use.

In my case

Answer 1

1.) I added an API key from my console dashboard. Remember to select the correct project you are working on. https://console.developers.google.com/apis/credentials?project=

2.) In my Project (Scripts Editor) I setAuthentication to Maps using the API key and the Client ID from the console. I have included the script below:

function getDrivingDirections(startLoc, wayPoint, endLoc){
   var key = "Your_API_Key";
   var clientID = "Your_Client_ID";
   Maps.setAuthentication(clientID, key);
   var directions =  Maps.newDirectionFinder()
        .setOrigin(startLoc)
        .addWaypoint(wayPoint)
        .setDestination(endLoc)
        .setMode(Maps.DirectionFinder.Mode.DRIVING)
        .getDirections();
} return directions;

https://developers.google.com/apps-script/reference/maps/maps#setAuthentication(String,String)