pveller

/*
In order to subscribe to the AWS IoT topic over WS (over MQQT), 
you have to make sure that your Cognito identity has a proper IoT policy attached to it.

More details and the message from the official AWS support: 
https://github.com/aws/aws-amplify/issues/749

This code shows how you can dynamically attach a policy to the authenticated identity.
Make sure that your Authenticated IAM in the Cognito User Pool has proper IoT permissions.