Before you run this project, install the Google Client SDK first. To do that, follow the instructions.
1. Download composer
2. Download Google Client SDK using Composer and using the ff command:
    composer require google/apiclient:"^2.0"

Next, create a new Project and oAuth Credential @ https://console.cloud.google.com/. Then copy/paste the ClientID and Secret at the given variable located at the login.php file.

Run the project.