conf.json

{
  "io": [
    {
      "type": "webserver",
      "topicPrefix": "ws/",
      "port": 3000
    },
    {
      "type": "mqtt",
      "topicPrefix": "",
      "url": "mqtt://localhost:1883"
    },
    {
      "type": "hookCall",
      "url": "http://localhost:3000/hook",
      "topicPrefix": "hook/",
      "responseTopic": "computed/hooks/response1"
    }
  ],
  "transforms": [
    {
      "fromTopic": "ws/test1",
      "toTopic": "computed/test1",
      "emitInterval": 30,
      "emitType": "repeat",
      "template": {
        "message": "${stringParam}"
      }
    },
    {
      "fromTopic": "computed/test1",
      "toTopic": "hook/test2",
      "emitInterval": 60,
      "emitType": "once",
      "template": {
        "message": "${message}"
      }
    },
    {
      "fromTopic": "computed/hooks/response1",
      "toTopic": "computed/map",
      "emitType": "map",
      "useMetrics": {
        "lT": "lastMessageTime",
        "fT": "firstMessageTime",
        "pT": "prevMessageTime",
        "mC": "messageCount"
      },
      "template": {
        "responseStatus": {
          "$eval": "responseStatus"
        },
        "avgMsgPerSec": {
          "$eval": "floor((lT-fT)/mC/1000)"
        },
        "msgDelay": {
          "$eval": "floor((lT-pT)/1000)"
        }
      }
    },
    {
      "fromTopic": "computed/hooks/response1",
      "toTopic": "computed/filter/ok",
      "emitType": "filter",
      "filterTemplate": {
        "$if": "responseStatus == 200",
        "then": true,
        "else": false
      }
    },
    {
      "fromTopic": "computed/hooks/response1",
      "toTopic": "computed/filter/nok",
      "emitType": "filter",
      "filterTemplate": {
        "$if": "responseStatus != 200",
        "then": true,
        "else": false
      }
    },
    {
      "fromTopic": "computed/hooks/response1",
      "toTopic": "computed/collect/ok",
      "emitType": "collect",
      "filterTemplate": {
        "$if": "responseStatus == 200",
        "then": true,
        "else": false
      },
      "template": {
        "request": "${requestBody}"
      }
    },
    {
      "fromTopics": [
        "ws/test1",
        "ws/test2"
      ],
      "toTopic": "computed/zip",
      "emitType": "zipLast",
      "template": {
        "firstNum": "${messages[0].numParam}",
        "secondNum": "${messages[1].numParam}",
        "sum": {
          "$eval": "messages[0].numParam + messages[1].numParam"
        }
      }
    },
    {
      "fromTopics": [
        "ws/test1",
        "ws/test2"
      ],
      "toTopic": "computed/combineLatest",
      "emitType": "combineLatest",
      "template": {
        "firstNum": "${messages[0].numParam}",
        "secondNum": "${messages[1].numParam}",
        "sum": {
          "$eval": "messages[0].numParam + messages[1].numParam"
        }
      }
    },
    {
      "fromTopic": "computed/filter/+",
      "toTopicTemplate": "f_${topic}_NEW",
      "emitInterval": 60,
      "topicKeyToMessage": "topic",
      "emitType": "map",
      "useConstants": {
        "sth": "secToHour"
      },
      "template": {
        "responseStatus": {
          "$eval": "responseStatus"
        },
        "secToHour": "${sth}"
      }
    },
    {
      "emitType": "constant",
      "name": "secToHour",
      "value": 3600
    }
  ]
}