Just share this web! You can invite member without your hands😎
You can deploy google-drive-invite web with heroku.
Should enter google api key
If you have other credentials already, then skip to 8
And, Input the URL on Authorized redirect URIs
9-2. Paste Client ID, Secret on OAuth 2.0 Configuration(check Use Your own Oauth credentials) - On right section.
9-3.Select Drive API V3's
And, Click Authorize APIs Button!
Exchange authorization code for tokens
You've got Authorization code, Refresh token
Use all of token to heroku deploy!