serverless/tests/integration/aws/cognito-user-pool/single-pool-single-event-single-function/service/handler.js

'use strict';

module.exports.preSignUp = (event, context, callback) => {
  const nextEvent = Object.assign({}, event);
  nextEvent.response.autoConfirmUser = true;

  process.stdout.write(JSON.stringify(nextEvent));
  callback(null, nextEvent);
};