title: How to write Jmeter script for AWS cognito login
body: <p>I am trying to create jmeter script for login in to iphone native app. App is using cognito to authenticate the user.
  As response of first page of app I am getting SALT and Secret block.
  I am passing this secret block in and other required parameters in next request, however I got error message as "User name or password is in correct".</p>
  
  <p>Did anyone worked successfully on similar things which can help me. </p>