Q2: In the previous versions of guide, we get the user identity id by

event.requestContext.identity.cognitoIdentityId

, why does it become

event.requestContext.authorizer.iam.cognitoIdentity.identityId

in the latest guide?

The previous version of the guide used the API Gateway REST API. The newer version uses the API Gateway HTTP API, which is a newer service that’s cheaper and faster at the cost of lesser feature.

Got it, Thank you!