How to use msg property in notify?

Third party integrations Node-RED
1

Hi!
How can I use a property of message in notify call service?
I’m trying to replace nome_sensor in message, but no success. I can see that property is being sent, but is not replaced in notify message.
This is my notify json (google assistant):

{
   "title": "Movimento detectado",
   "message": "Foi detectado um movimento na casa! Sensor: {{nome_sensor}}",
   "data": {
       "color": "red",
       "channel": "alarm_stream",
       "importance": "max",
       "vibrationPattern": "1000, 1000, 1000, 1000, 1000, 1000, 1000",
       "ledColor": "red",
       "persistent": "true",
       "tag": "persistent",
       "priority": "high"
       
   }
}

The entire msg that is being into notify node is:

{"_msgid":"407e71165278f54a","payload":1639175866531,"topic":"","nome_sensor":"Fundo"}

This is my entire test flow:

[
    {
        "id": "eda7c20ecbf16c9d",
        "type": "tab",
        "label": "Flow 1",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "789e9e956ac2be24",
        "type": "inject",
        "z": "eda7c20ecbf16c9d",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            },
            {
                "p": "nome_sensor",
                "v": "Fundo",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payloadType": "date",
        "x": 390,
        "y": 540,
        "wires": [
            [
                "3e44f7e6ba8539b9"
            ]
        ]
    },
    {
        "id": "3e44f7e6ba8539b9",
        "type": "api-call-service",
        "z": "eda7c20ecbf16c9d",
        "name": "Notifica",
        "server": "2ba92c0c.9dae24",
        "version": 3,
        "debugenabled": false,
        "service_domain": "notify",
        "service": "mobile_app_redmi_k20_pro",
        "entityId": "",
        "data": "{\t   \"title\": \"Movimento detectado\",\t   \"message\": \"Foi detectado um movimento na casa! Sensor: {{nome_sensor}}\",\t   \"data\": {\t       \"color\": \"red\",\t       \"channel\": \"alarm_stream\",\t       \"importance\": \"max\",\t       \"vibrationPattern\": \"1000, 1000, 1000, 1000, 1000, 1000, 1000\",\t       \"ledColor\": \"red\",\t       \"persistent\": \"true\",\t       \"tag\": \"persistent\",\t       \"priority\": \"high\"\t       \t   }\t}",
        "dataType": "jsonata",
        "mergecontext": "",
        "mustacheAltTags": false,
        "outputProperties": [],
        "queue": "none",
        "x": 700,
        "y": 540,
        "wires": [
            [
                "65e6fb496d9de6d9"
            ]
        ]
    },
    {
        "id": "65e6fb496d9de6d9",
        "type": "debug",
        "z": "eda7c20ecbf16c9d",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "statusVal": "",
        "statusType": "auto",
        "x": 990,
        "y": 540,
        "wires": []
    },
    {
        "id": "2ba92c0c.9dae24",
        "type": "server",
        "name": "Home Assistant",
        "version": 2,
        "addon": true,
        "rejectUnauthorizedCerts": true,
        "ha_boolean": "y|yes|true|on|home|open",
        "connectionDelay": true,
        "cacheJson": true,
        "heartbeat": false,
        "heartbeatInterval": 30
    }
]
2

Try:

   "message": "Foi detectado um movimento na casa! Sensor: " + {{nome_sensor}},

or possibly - I can never remember which format NodeRed uses:

   "message": "Foi detectado um movimento na casa! Sensor: {{{nome_sensor}}}",
3

{{ is Jinja and used in HA

In Node-Red it’s JavaScript instead, so instead of

Sensor: {{nome_sensor}}",
   "data": {

You use

Sensor:"+some_value,
  "data":{

You might also be able to use a .replace("{{none_sensor",“some_value”) function

4

Yeah but in NodeRed it’s called Mustache templates. Anything inside {{ }} references the msg object, so msg.item can be directly referenced with {{ item }} and payload with {{ payload }}. And you can reference subobjects like {{ payload.object1.item1 }} without having to use + msg.payload.object1.item1.

5

AHH, never knew that.
I always used the other method because that was the one the Node-Red copy value path function give me.

7

Nevermind guy’s! Totally my mistake.
Data was set to ‘expression’ instead of ‘JSON’, that’s why Mustache templates was not working!

1 Like
8

I was going to ask about that, but in your flow you posted it says

        "dataType": "jsonata",
9

Giving back. My solution works, follows a different approach, and hopefully saves time to someone else.

The goal was: Read my PV battery voltage and send it formatted to the smartphone.

The solution: I use 3 Nodes:

  1. Poll State Node to read the voltage
  2. Function Node to extract and format the data
  3. Call Service Node to send to smartphone

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Thanks for your inspirations and to my colleague MK!

:slight_smile:
Greek

1 Like
10

cheers, Greek! this also helped me!