We have published a new Passwordless sample solution that includes WebAuthn (FIDO2, Passkeys) and e-mail Magic Links: https://github.com/aws-samples/amazon-cognito-passwordless-auth
The repository here, the one you're looking at now, is still a good reference for implementing e-mail OTP (One Time Password). Be aware though: we haven't updated this repository in a while, so e.g. dependencies are outdated! Only use the repository here to get an idea on "how to do it".
This is the sample code that comes together with the blog post on passwordless e-mail auth in Amazon Cognito.
The purpose of this sample code is to demonstrate how Amazon Cognito Custom Authentication Flows can be used to implement passwordless e-mail auth. Please treat the code as an illustration––thoroughly review it and adapt it to your needs, if you want to use it for serious things.
The sample code is contained in these folders. Please visit these and run the sample solution:
- ./cognito: a Serverless Application that includes a Cognito user pool with the necessary setup
- ./client: a Web Client that authenticates with the Cognito user pool
This sample code is made available under a modified MIT license. See the LICENSE file.