{
  "QueryLanguage": "JSONata",
  "StartAt": "SubmitOrder",
  "States": {
    "SubmitOrder": {
      "Type": "Task",
      "Resource": "arn:aws:states:::sqs:sendMessage",
      "Arguments": {
        "QueueUrl": "https://sqs.us-east-1.amazonaws.com/123456789012/FulfillmentQueue",
        "MessageBody": "{% $string({'orderId': $states.input.orderId, 'items': $states.input.items}) %}"
      },
      "Assign": {
        "fulfillmentOrderId": "{% $states.input.orderId %}"
      },
      "Next": "InitialWaitForFulfillment"
    },
    "InitialWaitForFulfillment": {
      "Type": "Wait",
      "Seconds": 300,
      "Next": "CheckFulfillmentStatus"
    },
    "CheckFulfillmentStatus": {
      "Type": "Task",
      "Resource": "arn:aws:states:::dynamodb:getItem",
      "Arguments": {
        "TableName": "OrdersTable",
        "Key": {
          "orderId": {
            "S": "{% $fulfillmentOrderId %}"
          }
        }
      },
      "Assign": {
        "orderStatus": "{% $states.result.Item.status.S %}"
      },
      "Next": "EvaluateFulfillment",
      "Retry": [
        {
          "ErrorEquals": [
            "States.TaskFailed",
            "ThrottlingException"
          ],
          "IntervalSeconds": 2,
          "MaxAttempts": 3,
          "BackoffRate": 2
        }
      ]
    },
    "EvaluateFulfillment": {
      "Type": "Choice",
      "Choices": [
        {
          "Condition": "{% $orderStatus = 'fulfilled' %}",
          "Next": "FulfillmentComplete"
        },
        {
          "Condition": "{% $orderStatus in ['failed', 'cancelled'] %}",
          "Next": "FulfillmentFailed"
        }
      ],
      "Default": "WaitBeforeNextPoll"
    },
    "WaitBeforeNextPoll": {
      "Type": "Wait",
      "Seconds": 60,
      "Next": "CheckFulfillmentStatus"
    },
    "FulfillmentComplete": {
      "Type": "Succeed"
    },
    "FulfillmentFailed": {
      "Type": "Fail",
      "Error": "FulfillmentFailed",
      "Cause": "{% 'Order fulfillment status: ' & $orderStatus %}"
    }
  }
}