google authorize

This JavaScript module handles OAuth2 authentication with Google Calendar using various external libraries and provides error handling and fallback scenarios to recover from connection issues. The module defines four primary functions: storing tokens, exchanging codes for OAuth2 tokens, error fallback, and renewing existing tokens, with the last function having incomplete documentation and implementation.

The authorizeSelenium function uses the client object to navigate to a provided auth URL, log in using the loginGoogle function, and interact with various HTML elements on the page to retrieve the value of a textarea element.

This code imports dependencies for a Node.js application, sets up OAuth 2.0 credentials, and creates an instance of the OAuth2Client class to request an access token. The access token is requested using the getToken method of the oauth2Client instance, and the result is handled through a promise with a callback function for both successful and error cases.