Google Drive™ Custom Adapter for Salesforce Connect
This example illustrates how to use callouts and OAuth to connect to an external
system, which in this case is the Google Drive™ online storage service. The example also
shows how to avoid failing tests from web service callouts by returning mock responses for
test methods.
For this example to work reliably, request offline access when setting up OAuth so that Salesforce can obtain and maintain a refresh token for your connections.