### Google

Official docs: https://developers.google.com/api-client-library/php/auth/web-app

* Open the [Credentials page](https://console.developers.google.com/apis/credentials) in the API Console.
* Click **Create credentials > OAuth client ID**.
* Complete the form. Set the application type to `Web application`.


https://console.developers.google.com/apis/library/plus.googleapis.com/

API Google+ Explorer: https://developers.google.com/apis-explorer/?hl=en_GB#p/plus/v1/

#### When Create Website