Corprio.GoogleLib

The Corprio.GoogleLib project includes functions to faciliate the use of Google API services.

Configure Google API

To use Google APIs, you need to set up authentication and authorization. Follow these steps:

1. Create a project in the Google Cloud Console.
2. Naviagate to the "APIs & Services" section and select "Credentials".
3. Create OAuth 2.0 Client IDs for your application.
4. Register your application and obtain OAuth 2.0 credentials (Client ID and Client Secret).
5. Save the client ID and client secret in appsetting.json.

"oAuth": { "google": { "clientId": "your client ID", "clientSecret": "your client secret" } }

1. Enable the required APIs for your project (e.g., Google Drive API, Google Sheets API).
2. Add the following urls in Redirect URIs:
   • https://{authentication-server-host}/signin-google
   • https://{portal-site-host}}/oauth/google/callback
3. Set up OAuth 2.0 consent screen.

Authentication and Authorization flow

1. Redirect users to the Gogole login url to initiate the authentication and authorization process. The Google login url can be obtained by the GetAuthorizationUrl() function of the OAuthClient.
2. Then user is redirected to Google to log in and authorize your application.
3. After authorization, Google redirects the user back to your application's redirect url (i.e. 'https://portal.corprio.com/oauth/google/callback') with an authorization code. The redirect url action should receive the authorization code and do the followings.
   • Exchange the authorization code for an access token and a refresh token.
   • Store the access token and refresh token in ServiceProviderRegistration for future use.
   • Finally, redirect the user to a confirmation page or back to your application.