title: AWS Cognito user pool identity REST examples
body: <p>We are looking into using user pools for our application. I would like to try out API in REST manner. Documentation at <a href="https://docs.aws.amazon.com/cognito-user-identity-pools/latest/APIReference/Welcome.html">https://docs.aws.amazon.com/cognito-user-identity-pools/latest/APIReference/Welcome.html</a> doesn't have request and response examples like others. Looking for SignUp, ResendConfirmationCode,ChangePassword and ConfirmSignUp examples.  </p>