How to do Cognito authentication in lambda function?

Question

Any one could you please assist me that how to create the Lambda function for "Sign In using Cognito".

Is that possible in server side OR only possible in client side?

I have searched in the below link, But we don't know which one Should I use it for SignIn.

http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/CognitoIdentityServiceProvider.html

Thanks in Advance.

Answer 1

It should be possible by using the node version of the Cognito Javascript SDK.

https://www.npmjs.com/package/amazon-cognito-identity-js-node