npm install node-red-contrib-counter

[
{
"id": "2bf4cd08347d634e",
"type": "inject",
"z": "be13ab6139516ded",
"name": "data exist",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payloadType": "date",
"x": 240,
"y": 460,
"wires": [
[
"af8e3d8cfdb1cf9d"
]
]
},
{
"id": "f9384a2ea891f2cd",
"type": "counter",
"z": "be13ab6139516ded",
"name": "",
"init": "0",
"step": 1,
"lower": null,
"upper": null,
"mode": "increment",
"outputs": "1",
"x": 480,
"y": 580,
"wires": [
[
"b4b4c4e046fb3c77"
]
]
},
{
"id": "af8e3d8cfdb1cf9d",
"type": "function",
"z": "be13ab6139516ded",
"name": "msg object",
"func": "msg.increment = 1;\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 270,
"y": 580,
"wires": [
[
"f9384a2ea891f2cd"
]
]
},
{
"id": "b4b4c4e046fb3c77",
"type": "function",
"z": "be13ab6139516ded",
"name": "",
"func": "return {\n payload: {\n\n\t\"counter\": msg.count\n\n}\n}\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 650,
"y": 480,
"wires": [
[
"0f427c2afac615b4"
]
]
},
{
"id": "0f427c2afac615b4",
"type": "debug",
"z": "be13ab6139516ded",
"name": "",
"active": false,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"statusVal": "",
"statusType": "auto",
"x": 890,
"y": 480,
"wires": []
}
]