# How to add topic in received payload array

**URL:** <https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927>\
**Category:** General\
**Created:** [18 November 2021 10:27 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927 "2021-11-18T10:27:09Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 10:27 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/1 "2021-11-18T10:27:09Z")

</div>

![array](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/0/d07c31535927221d24e683db74dfce976bfb8f3d.jpeg)  
Hello,  
I am receiving an array of 16, with values. I wanted to replace 0 ,1... with some topic name with values received and return in the same array format. How could I, please help.

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 10:28 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/2 "2021-11-18T10:28:37Z")

</div>

After modification data should look like  
ABC:"MAT1253685698"  
DEF:"55666"  
etc

---

<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [18 November 2021 10:56 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/3 "2021-11-18T10:56:07Z")

</div>

> [@TROJAN053](#):
>
> I wanted to replace 0 ,1... with some topic name

in a function node...

```javascript
const newPayload= {};
newPayload.ABC = msg.payload[0];
newPayload.DEF = msg.payload[1];
msg.payload = newPayload;
return result;

```

  

> [@TROJAN053](#):
>
> and return in the same array format

You cant name array indexes - your choice is an array with indexes or object with property names.

alternatively, you could return an array of objects & each value can include many properties e.g...

```json
[ 
  { topic: "ABC", payload: "MAT777..." }, 
  { topic: "DEF", payload: "5129..." }, 
]

```

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 11:39 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/4 "2021-11-18T11:39:17Z")

</div>

{  
"timestamp":1637117632371,  
"values":[  
{  
"id":"result CT1.CT1\_AIR\_RESIDUAL",  
"v":"",  
"q":true,  
"t":1637115386660  
},  
{  
"id":"result CT1.CT1\_CYCLE \_TIME",  
"v":"165",  
"q":true,  
"t":1637117152004  
},  
{  
"id":"FIVE cinetics NEW1.L33ER.Five cinetics print result CT1.CT1\_CYCLE\_DATE",  
"v":"2021/11/17",  
"q":true,  
"t":1637115386692  
},  
{  
"id":"result CT1.CT1\_CYCLE\_FAULT\_CODE",  
"v":0,  
"q":true,  
"t":1637115386676  
},

What kind of data structure is this?

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 11:40 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/5 "2021-11-18T11:40:59Z")

</div>

I want my data (payload)  
"VAT":"8017M3N26190",  
"VC":"320868000R",  
"CT\_VACCUM\_SET":10,  
"CT\_VACCUM\_ACTUAL":91,  
"CT\_PRESSURE\_SET":2200,  
"CT\_PRESSURE\_ACTUAL":2392,  
In the above posted structure. Please help.

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 11:42 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/6 "2021-11-18T11:42:36Z")

</div>

The required format is to be sent on MQTT.

---

<div class="post-metadata">

**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [18 November 2021 12:56 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/7 "2021-11-18T12:56:59Z")

</div>

In @Steve-Mcl 's answer I think the last line should be `return msg;`

```auto
const newPayload= {};
newPayload.ABC = msg.payload[0];
newPayload.DEF = msg.payload[1];
msg.payload = newPayload;
return msg;

```

(obviously you need to use the right names and array indices)  
If you fix that, does it give you the desired result?

By the way, "VACCUM" is an unusual way to spell "VACUUM". This might cause problems for the MQTT subscriber. 😀

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 12:59 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/8 "2021-11-18T12:59:20Z")

</div>

hI Jbudd,  
Already i have changed that but output is not in the format i require. It just look like  
{  
"VIN": "123456",  
"VC": "555996",  
"CT\_VACCUM\_SET": 20,  
"CT\_VACCUM\_ACTUAL": 9,  
"CT\_PRESSURE\_SET": 2200,  
"CT\_PRESSURE\_ACTUAL": 2402,  
"CT\_RESULT": 10,  
"CT\_CYCLE\_TIME": 72,  
"CT\_CYCLE\_NUMBER": 0,  
"CT\_FAULT\_CODE": 0,  
"PROCESS\_TYPE": "CT",  
"FACTORY\_CODE": "",  
"SHOP\_CODE": "",  
"LINE\_CODE": "",  
"MACHINE\_CODE": ""  
}

---

<div class="post-metadata">

**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [18 November 2021 13:04 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/9 "2021-11-18T13:04:50Z")

</div>

Please post an example of your array and precisely what result you want for that input.  
Use the preformatted text button to post actual data, not a screengrab.  
 ![Untitled 3](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/7/3734f56d9244253ff3e7c1ed011d848bccf3a097.jpeg)

ps post your function node too please.

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 13:18 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/10 "2021-11-18T13:18:50Z")

</div>

Sorry for the earlier confusing posts.  
My required array format is  
"values":[  
{  
"id":" VAT",  
"v":"",  
"t":1637115386660  
},  
{  
"id":"VC",  
"v":"165",  
"t":1637117152004  
},  
{  
"id":"CT\_VACUUM \_SET",  
"v":25,  
"t":1637115386676  
},  
{  
"id":"CT\_VACUUM\_ACTUAL",  
"v":"5",  
"t":1637115386692  
},  
{  
"id":"CT\_PRESSURE\_SET",  
"v":2200,  
},

While My data from the payload is  
{  
"VAT": "81004M3N26193",  
"VC": "50702156100R",  
"CT\_VACCUM\_SET": 20,  
"CT\_VACCUM\_ACTUAL": 9,  
"CT\_PRESSURE\_SET": 2200,  
}

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 13:22 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/11 "2021-11-18T13:22:27Z")

</div>

My function node is.  
const newPayload= {};  
newPayload.VAT = msg.payload[0];  
newPayload.VC = msg.payload[1];  
newPayload.CT\_VACCUM\_SET = msg.payload[2];  
newPayload.CT\_VACCUM\_ACTUAL = msg.payload[3];  
newPayload.CT\_PRESSURE\_SET = msg.payload[4];  
newPayload.CT\_PRESSURE\_ACTUAL = msg.payload[5];  
newPayload.CT\_RESULT = msg.payload[6];  
newPayload.CT\_CYCLE\_TIME = msg.payload[8];  
newPayload.CT\_CYCLE\_NUMBER = msg.payload[9];  
newPayload.CT\_FAULT\_CODE = msg.payload[10];  
newPayload.PROCESS\_TYPE = msg.payload[11];  
newPayload.FACTORY\_CODE = msg.payload[12];  
newPayload.SHOP\_CODE = msg.payload[13];  
newPayload.LINE\_CODE = msg.payload[14];  
newPayload.MACHINE\_CODE = msg.payload[15];  
msg.payload = newPayload;  
return msg;

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 13:23 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/12 "2021-11-18T13:23:46Z")

</div>

My flow here

```auto
[{"id":"329af91.a223406","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"5981e3ba.9ac3ac","type":"s7 in","z":"329af91.a223406","endpoint":"e3ef3f7a.8d6dc","mode":"all","variable":"PROCESS COMPLETE","diff":true,"name":"CINETIC_CT","x":110,"y":160,"wires":[["ed6c2b78.d227b8"]]},{"id":"b84c4b64.2bb5c8","type":"mqtt out","z":"329af91.a223406","name":"Line3_CINETIC","topic":"L3_CINETIC_CT","qos":"1","retain":"true","respTopic":"","contentType":"","userProps":"","correl":"","expiry":"","broker":"ab7e477.fbe3cb8","x":900,"y":160,"wires":[]},{"id":"1b88dd4.9486e23","type":"mqtt in","z":"329af91.a223406","name":"Line3_Cinetic_In","topic":"L3_CINETIC_CT","qos":"2","datatype":"auto","broker":"ab7e477.fbe3cb8","nl":false,"rap":true,"rh":0,"x":400,"y":360,"wires":[["c88d2ef1.ee3fb"]]},{"id":"ed6c2b78.d227b8","type":"function","z":"329af91.a223406","name":"","func":"var a = msg.payload;\nvar K =a.PROCESS_COMPLETE;\nvar L\n\n//if (J == 10){\n //L = \"NO CYCLE\";\n//}\n//else if (J == 20) {\n //L= \"PASS\";\n//}\n//else {\n // L=\"FAIL\";\n//}\n\nif (K == true){\n//msg.payload =\"'\"+H+\"'\"+','+\"'\"+I+\"'\"+','+B+','+C+','+D+','+E+','+F+','+G+','+\"'\"+L+\"'\";\n return msg;\n}","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":280,"y":160,"wires":[["e5e85ec2.07b9d"]]},{"id":"c88d2ef1.ee3fb","type":"debug","z":"329af91.a223406","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":630,"y":360,"wires":[]},{"id":"4d93e3b0.fbe4ec","type":"function","z":"329af91.a223406","name":"","func":"const newPayload= {};\nnewPayload.VIN = msg.payload[0];\nnewPayload.VC = msg.payload[1];\nnewPayload.CT_VACCUM_SET = msg.payload[2];\nnewPayload.CT_VACCUM_ACTUAL = msg.payload[3];\nnewPayload.CT_PRESSURE_SET = msg.payload[4];\nnewPayload.CT_PRESSURE_ACTUAL = msg.payload[5];\nnewPayload.CT_RESULT = msg.payload[6];\nnewPayload.CT_CYCLE_TIME = msg.payload[8];\nnewPayload.CT_CYCLE_NUMBER = msg.payload[9];\nnewPayload.CT_FAULT_CODE = msg.payload[10];\nnewPayload.PROCESS_TYPE = msg.payload[11];\nnewPayload.FACTORY_CODE = msg.payload[12];\nnewPayload.SHOP_CODE = msg.payload[13];\nnewPayload.LINE_CODE = msg.payload[14];\nnewPayload.MACHINE_CODE = msg.payload[15];\nmsg.payload = newPayload;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":700,"y":160,"wires":[["b84c4b64.2bb5c8"]]},{"id":"e5e85ec2.07b9d","type":"split","z":"329af91.a223406","name":"","splt":",","spltType":"str","arraySplt":1,"arraySpltType":"len","stream":true,"addname":"","x":430,"y":160,"wires":[["e142d292.9134f"]]},{"id":"e142d292.9134f","type":"join","z":"329af91.a223406","name":"","mode":"custom","build":"array","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":false,"timeout":"","count":"16","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":570,"y":160,"wires":[["4d93e3b0.fbe4ec"]]},{"id":"e3ef3f7a.8d6dc","type":"s7 endpoint","transport":"iso-on-tcp","address":"192.168.0.9","port":"102","rack":"0","slot":"2","localtsaphi":"01","localtsaplo":"00","remotetsaphi":"01","remotetsaplo":"00","connmode":"rack-slot","adapter":"","busaddr":"2","cycletime":"1000","timeout":"2000","name":"CINETIC_CT","vartable":[{"addr":"DB51,S4.17","name":"VIN"},{"addr":"DB51,S24.12","name":"VC"},{"addr":"DB550,INT66","name":"CT_VACCUM_SET"},{"addr":"DB550,INT64","name":"CT_VACCUM_ACTUAL"},{"addr":"DB550,INT70","name":"CT_PRESSURE_SET"},{"addr":"DB550,INT68","name":"CT_PRESSURE_ACTUAL"},{"addr":"DB550,INT56","name":"CT_RESULT"},{"addr":"M135.0","name":"PROCESS_COMPLETE"},{"addr":"DB550,INT144","name":"CT_CYCLE_TIME"},{"addr":"DB550,INT74","name":"CT_CYCLE_NUMBER"},{"addr":"DB550,INT152","name":"CT_FAULT_CODE"},{"addr":"DB550,S130.2","name":"PROCESS_TYPE"},{"addr":"DB550,S156.6","name":"FACTORY_CODE"},{"addr":"DB550,S164.6","name":"SHOP_CODE"},{"addr":"DB550,S172.8","name":"LINE_CODE"},{"addr":"DB550,S182.8","name":"MACHINE_CODE"}]},{"id":"ab7e477.fbe3cb8","type":"mqtt-broker","name":"Central Broker","broker":"172.27.138.122","port":"1883","clientid":"","usetls":false,"protocolVersion":"4","keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","birthMsg":{},"closeTopic":"","closeQos":"0","closePayload":"","closeMsg":{},"willTopic":"","willQos":"0","willPayload":"","willMsg":{},"sessionExpiry":""}]

```

---

<div class="post-metadata">

**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [18 November 2021 13:28 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/13 "2021-11-18T13:28:20Z")

</div>

@TROJAN053 please use the `</>` button in the toolbar when posting code/flows to the forum. That ensures they are properly formatted as code and avoids the forum treating them as markdown content and mangling them.

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 13:31 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/14 "2021-11-18T13:31:52Z")

</div>

Thanks for the info.

---

<div class="post-metadata">

**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [18 November 2021 13:58 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/15 "2021-11-18T13:58:40Z")

</div>

I have had a look and there are one or two things which are confusing me...  
In your flow: what are your first function, the split and join nodes supposed to achieve?  
In your "Sorry for earlier confusing posts" above: what do you mean by "my required array format is"? Is this the data you are injecting into the flow or the data you want to get out?  
"While my data from the payload is..." Is this what you want to get, or what you get now?

If you post, using the `</>` button, the input data and the desired output data, we will be more able to help.

Because I don't have your s7 input device or your MQTT broker, I would use an inject node to inject your sample data and a debug node to show the output like this:

 ![Untitled 1](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/8/1843940b22d2613e2ecd176b596cdbe56d8d1f45.jpeg)

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 16:14 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/16 "2021-11-18T16:14:09Z")

</div>

Forget the split and join as after joining payload is giving data same as S7 input device.  
You can inject

```auto
{
    "VAT": "MAT781004M3N26193",
    "VC": "50702156100R",
    "CT_VACCUM_SET": 20,
    "CT_VACCUM_ACTUAL": 9,
    "CT_PRESSURE_SET": 2200,
}
```

---

<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [18 November 2021 16:16 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/17 "2021-11-18T16:16:26Z")

</div>

The payload data I want is

```auto
{
"id":" VAT",
"v":"",
"t":1637115386660
},
{
"id":"VC",
"v":"165",
"t":1637117152004
},
{
"id":"CT_VACUUM _SET",
"v":25,
"t":1637115386676
},
{
"id":"CT_VACUUM_ACTUAL",
"v":"5",
"t":1637115386692
},
{
"id":"CT_PRESSURE_SET",
"v":2200,
"t":1637115386692,
},

```

Where t is timestamp of injection (that can be common to complete payload)

---

<div class="post-metadata">

**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [18 November 2021 20:12 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/18 "2021-11-18T20:12:13Z")

</div>

I cannot guess the algorithm that transforms "MAT781004M3N26193" to "" (VAT), "50702156100R" to "165" (VC), 20 to 25(CT\_VACUUM\_SET) or 9 to 5 (CT\_VACUUM\_ACTUAL). Maybe you just didn't bother to give valid data.  
However CT\_PRESSURE\_SET looks simple enough so you can extrapolate from that.

```auto
[
    {
        "id": "0aac398f3ab525b9",
        "type": "function",
        "z": "e3329002a7b5a054",
        "name": "",
        "func": "let t = new Date().getTime();\nlet vat = \"\";\nlet vc = \"Foo\";\nlet ct_vacuum_set = \"Bar\";\nlet ct_vacuum_actual = \"Wibble\";\nlet ct_pressure_set = msg.payload.CT_PRESSURE_SET;\nlet newmsg = [{\n \"id\": \" VAT\",\n \"v\": vat,\n \"t\": t\n},\n {\n \"id\": \"VC\",\n \"v\": vc,\n \"t\": t\n },\n {\n \"id\": \"CT_VACUUM _SET\",\n \"v\": ct_vacuum_set,\n \"t\": t\n },\n {\n \"id\": \"CT_VACUUM_ACTUAL\",\n \"v\": ct_vacuum_actual,\n \"t\": t\n },\n {\n \"id\": \"CT_PRESSURE_SET\",\n \"v\": ct_pressure_set,\n \"t\": t\n },]\nmsg.payload = newmsg;\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 430,
        "y": 120,
        "wires": [
            [
                "c22cc7b5e8da34ef"
            ]
        ]
    },
    {
        "id": "acac0814dc8acc5f",
        "type": "inject",
        "z": "e3329002a7b5a054",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "{\"VAT\":\"MAT781004M3N26193\",\"VC\":\"50702156100R\",\"CT_VACCUM_SET\":20,\"CT_VACCUM_ACTUAL\":9,\"CT_PRESSURE_SET\":2200}",
        "payloadType": "json",
        "x": 290,
        "y": 120,
        "wires": [
            [
                "0aac398f3ab525b9"
            ]
        ]
    },
    {
        "id": "c22cc7b5e8da34ef",
        "type": "debug",
        "z": "e3329002a7b5a054",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 590,
        "y": 120,
        "wires": []
    }
]

```

This is the input data I used

```auto
{"VAT":"MAT781004M3N26193","VC":"50702156100R","CT_VACCUM_SET":20,"CT_VACCUM_ACTUAL":9,"CT_PRESSURE_SET":2200}

```

And this is the output

```auto
[{"id":" VAT","v":"","t":1637283441167},{"id":"VC","v":"Foo","t":1637283441167},{"id":"CT_VACUUM _SET","v":"Bar","t":1637283441167},{"id":"CT_VACUUM_ACTUAL","v":"Wibble","t":1637283441167},{"id":"CT_PRESSURE_SET","v":2200,"t":1637283441167}]

```

If that is not what you want to achieve, I can be of no further assistance.

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<div class="post-metadata">

**Author:** ![TROJAN053](https://avatars.discourse-cdn.com/v4/letter/t/7cd45c/32.png) [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Post date:** [19 November 2021 02:47 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/20 "2021-11-19T02:47:32Z")

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That worked for me.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [3 December 2021 02:47 UTC](https://discourse.nodered.org/t/how-to-add-topic-in-received-payload-array/53927/21 "2021-12-03T02:47:52Z")

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