cognito-user-pool-event-template.json

{
  "version": 2,
  "triggerSource": "string",
  "region": "us-east-1",
  "userPoolId": "abcd123",
  "userName": "myNameIsAJ",
  "callerContext": {
    "awsSdkVersion": "1",
    "clientId": "abc1234"
  },
  "request": {
    "userAttributes": {
      "someAttr": "someValue"
    }
  },
  "response": {}
}