send email when user registers - AWS Cognito federated Identities
How can i send an email/trigger a lambda function when a new user registers? Under "edit identity pool" i only found a sync trigger. If i understand correctly: This one is triggered every time a user syncs his data... Is there any way to trigger a lambda function only for the "initial" sync or when a certain dataset is created for the user? Edit: To be more specific: I do create the user via lambdas using the JS SDK. I use developer authentication with my own oauth2 flow. I don't know how to distinguish between a user granting access e.g. via Google the first time from someone doing this the