I want to link my alexa skill to aws cognito. cognito should provide a possibility to also create own users, but also use federated identities.
The Problem is, that i need a Telephone Number. But "Login with Amazon" doesn't provide a Telephone Number.
=> If i define "Telephone Number" as a required field, it seems that i can't use "LoginWithAmazon". Because i have to map all Cognito Fields to the IdP.
I would wish a way, where the user can say: "LoginWithAmazon", and after the LoginWithAmazon he should have the possibility to enter/enhance the telephone number.
Is this possible with Cognito?
Because Alexa triggers Cognito oAuth Flow, and set an redirect url. it seems that i doesn't have a possibility to build something by my own in this flow, to fill this "aditional fields".
Does someone have an hint?