AdMob

Go to Developers Console API Library and find AdMob API:

Enable AdMob API:

Go to the OAuth consent screen in the left menu and create consent screen settings, fill in the Authorized domains field with devtodev.com:

Next, go to the Credentials section in the left menu and create new OAuth credentials. Select Web application and copy JavaScript origin URI from devtodev settings - https://analytics.devtodev.com.

Save credentials and copy Client ID and Client Secret:

Go to AdMob settings and copy Publisher ID:

Go to the list of your apps and copy App ID

Fill copied fields into devtodev and enable the integration: