{
  "name": "wmq_echo_loop",
  "description": "Pulls messages from the workflow queue in a loop and echoes each payload",
  "version": 1,
  "tasks": [
    {
      "name": "message_loop",
      "taskReferenceName": "message_loop_ref",
      "inputParameters": {},
      "type": "DO_WHILE",
      "decisionCases": {},
      "defaultCase": [],
      "forkTasks": [],
      "startDelay": 0,
      "joinOn": [],
      "optional": false,
      "defaultExclusiveJoinTask": [],
      "asyncComplete": false,
      "loopCondition": "$.message_loop_ref['iteration'] < 100",
      "loopOver": [
        {
          "name": "pull_message",
          "taskReferenceName": "pull_message_ref",
          "inputParameters": {
            "batchSize": 1
          },
          "type": "PULL_WORKFLOW_MESSAGES",
          "decisionCases": {},
          "defaultCase": [],
          "forkTasks": [],
          "startDelay": 0,
          "joinOn": [],
          "optional": false,
          "defaultExclusiveJoinTask": [],
          "asyncComplete": false,
          "loopOver": [],
          "onStateChange": {},
          "permissive": false
        },
        {
          "name": "echo_payload",
          "taskReferenceName": "echo_payload_ref",
          "inputParameters": {
            "evaluatorType": "javascript",
            "expression": "function e() { var msgs = $.messages; var msg = msgs && msgs.length > 0 ? msgs[0] : null; return { echoed: msg ? msg.payload : null, messageId: msg ? msg.id : null, receivedAt: msg ? msg.receivedAt : null }; } e();",
            "messages": "${pull_message_ref.output.messages}"
          },
          "type": "INLINE",
          "decisionCases": {},
          "defaultCase": [],
          "forkTasks": [],
          "startDelay": 0,
          "joinOn": [],
          "optional": false,
          "defaultExclusiveJoinTask": [],
          "asyncComplete": false,
          "loopOver": [],
          "onStateChange": {},
          "permissive": false
        }
      ],
      "onStateChange": {},
      "permissive": false
    }
  ],
  "inputParameters": [],
  "outputParameters": {},
  "schemaVersion": 2,
  "restartable": true,
  "workflowStatusListenerEnabled": false,
  "timeoutPolicy": "ALERT_ONLY",
  "timeoutSeconds": 0,
  "variables": {},
  "inputTemplate": {},
  "enforceSchema": true,
  "metadata": {},
  "maskedFields": []
}