# Javascript function to parse complex json object

**URL:** <https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700>\
**Category:** General\
**Tags:** function-node\
**Created:** [27 February 2025 23:22 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700 "2025-02-27T23:22:26Z")\
**Posts on this page:** 10\
**Page:** 1

<div class="post-metadata">

**Author:** ![Mick](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mick/32/80990_2.png) [@Mick](https://discourse.nodered.org/u/Mick)\
**Post date:** [27 February 2025 23:22 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/1 "2025-02-27T23:22:26Z")

</div>

I am trying to parse a complex json object Here is the object.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/2/7/273f1c56e335d1f85b5913c9cac64a4901c37ae4.png)

I am using the following flow to parse the data

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/optimized/3X/b/d/bd47dab1fbc960cc8370394da86d41d829979c62_2_690x72.png)

```auto
function getAllKeyValuePairs(obj, path = '') {
  const results = [];

  for (const key in obj) {
    if (obj.hasOwnProperty(key)) {
      const currentPath = path ? `${path}.${key}` : key;
      const value = obj[key];

      if (typeof value === 'object' && value !== null) {
        results.push(...getAllKeyValuePairs(value, currentPath));
      } else {
        results.push({ path: currentPath, value: value });
      }
    }
  }

  return results;
}

const myJsonObject = msg.payload

const allKeyValuePairs = getAllKeyValuePairs(myJsonObject);

allKeyValuePairs.forEach(item => {
console.log(`${item.path}: ${item.value}`);
});

```

```auto
[{"id":"6644ed21fe795c03","type":"function","z":"bec7048b1f74f182","name":"function 29","func":"function getAllKeyValuePairs(obj, path = '') {\n const results = [];\n\n for (const key in obj) {\n if (obj.hasOwnProperty(key)) {\n const currentPath = path ? `${path}.${key}` : key;\n const value = obj[key];\n\n if (typeof value === 'object' && value !== null) {\n results.push(...getAllKeyValuePairs(value, currentPath));\n } else {\n results.push({ path: currentPath, value: value });\n }\n }\n }\n\n return results;\n}\n\nconst myJsonObject = msg.payload\n\nconst allKeyValuePairs = getAllKeyValuePairs(myJsonObject);\n\nallKeyValuePairs.forEach(item => {\nconsole.log(`${item.path}: ${item.value}`);\n});","outputs":1,"timeout":0,"noerr":0,"initialize":"","finalize":"","libs":[],"x":430,"y":740,"wires":[["be6882c82fb414d3"]]},{"id":"be6882c82fb414d3","type":"debug","z":"bec7048b1f74f182","name":"debug 3","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":620,"y":740,"wires":[]},{"id":"d4ae6622b4e4681c","type":"template","z":"bec7048b1f74f182","name":"","field":"payload","fieldType":"msg","format":"json","syntax":"plain","template":"{\n \"version\": \"5.21.22\",\n \"system\": {\n \"manufacturer\": \"Gigabyte Technology Co., Ltd.\",\n \"model\": \"Z390 AORUS PRO WIFI\",\n \"version\": \"Default string\",\n \"serial\": \"Default string\",\n \"uuid\": \"032e02b4-0499-058e-e506-470700080009\",\n \"sku\": \"Default string\",\n \"virtual\": false\n },\n \"bios\": {\n \"vendor\": \"American Megatrends Inc.\",\n \"version\": \"F10\",\n \"releaseDate\": \"2019-06-04\",\n \"revision\": \"\",\n \"serial\": \"\"\n },\n \"baseboard\": {\n \"manufacturer\": \"Gigabyte Technology Co., Ltd.\",\n \"model\": \"Z390 AORUS PRO WIFI-CF\",\n \"version\": \"x.x\",\n \"serial\": \"\",\n \"assetTag\": \"\",\n \"memMax\": 68719476736,\n \"memSlots\": 4\n },\n \"chassis\": {\n \"manufacturer\": \"\",\n \"model\": \"\",\n \"type\": \"Desktop\",\n \"version\": \"\",\n \"serial\": \"\",\n \"assetTag\": \"\",\n \"sku\": \"\"\n },\n \"os\": {\n \"platform\": \"Windows\",\n \"distro\": \"Microsoft Windows 11 Pro\",\n \"release\": \"10.0.26120\",\n \"codename\": \"\",\n \"kernel\": \"10.0.26120\",\n \"arch\": \"x64\",\n \"hostname\": \"w8be-prod\",\n \"fqdn\": \"W8BE-PROD\",\n \"codepage\": \"437\",\n \"logofile\": \"windows\",\n \"serial\": \"00330-80021-43272-AA568\",\n \"build\": \"26120\",\n \"servicepack\": \"0.0\",\n \"uefi\": true,\n \"hypervisor\": false,\n \"remoteSession\": false\n },\n \"uuid\": {\n \"os\": \"596d850e-1cbc-456d-81c8-9dbeb723a679\",\n \"hardware\": \"032e02b4-0499-058e-e506-470700080009\",\n \"macs\": [\n \"b4:2e:99:8e:e5:47\"\n]\n },\n \"versions\": {\n \"kernel\": \"10.0.26120\",\n \"openssl\": \"3.0.13+quic\",\n \"systemOpenssl\": \"\",\n \"systemOpensslLib\": \"\",\n \"node\": \"20.15.0\",\n \"v8\": \"11.3.244.8-node.23\",\n \"npm\": \"10.8.1\",\n \"yarn\": \"\",\n \"pm2\": \"\",\n \"gulp\": \"\",\n \"grunt\": \"\",\n \"git\": \"2.47.0.windows.2\",\n \"tsc\": \"\",\n \"mysql\": \"\",\n \"redis\": \"\",\n \"mongodb\": \"\",\n \"apache\": \"\",\n \"nginx\": \"\",\n \"php\": \"\",\n \"docker\": \"\",\n \"postfix\": \"\",\n \"postgresql\": \"\",\n \"perl\": \"\",\n \"python\": \"3.11.0\",\n \"python3\": \"\",\n \"pip\": \"22.3\",\n \"pip3\": \"22.3\",\n \"java\": \"\",\n \"gcc\": \"\",\n \"virtualbox\": \"\",\n \"bash\": \"\",\n \"zsh\": \"\",\n \"fish\": \"\",\n \"powershell\": \"5.1.26100.2200:\",\n \"dotnet\": \"4.8.09032\"\n },\n \"cpu\": {\n \"manufacturer\": \"Intel\",\n \"brand\": \"Core™ i9-9900K\",\n \"vendor\": \"GenuineIntel\",\n \"family\": \"6\",\n \"model\": \"158\",\n \"stepping\": \"13\",\n \"revision\": \"\",\n \"voltage\": \"\",\n \"speed\": 3.6,\n \"speedMin\": 3.6,\n \"speedMax\": 3.6,\n \"governor\": \"\",\n \"cores\": 16,\n \"physicalCores\": 8,\n \"performanceCores\": 16,\n \"efficiencyCores\": 0,\n \"processors\": 1,\n \"socket\": \"LGA1151\",\n \"flags\": \"de pse tsc msr mce sep mtrr mca cmov psn clfsh ds acpi mmx fxsr sse sse2 ss htt tm ia64 pbe\",\n \"virtualization\": false,\n \"cache\": {\n \"l1d\": 256,\n \"l1i\": 256,\n \"l2\": 2097152,\n \"l3\": 16777216\n }\n },\n \"graphics\": {\n \"controllers\": [\n {\n \"vendor\": \"Advanced Micro Devices, Inc.\",\n \"model\": \"ASUS Radeon RX 580 Series\",\n \"bus\": \"PCI\",\n \"vram\": 8192,\n \"vramDynamic\": true,\n \"subDeviceId\": \"2378148C\"\n }\n],\n \"displays\": [\n {\n \"vendor\": \"(Standard monitor types)\",\n \"model\": \"Generic PnP Monitor\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY2\",\n \"main\": true,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 3072,\n \"resolutionY\": 1728,\n \"sizeX\": 53,\n \"sizeY\": 30,\n \"pixelDepth\": \"32\",\n \"currentResX\": 3072,\n \"currentResY\": 1728,\n \"positionX\": 0,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n },\n {\n \"vendor\": \"\",\n \"model\": \"\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY1\",\n \"main\": false,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 1920,\n \"resolutionY\": 1080,\n \"sizeX\": 70,\n \"sizeY\": 40,\n \"pixelDepth\": \"32\",\n \"currentResX\": 1920,\n \"currentResY\": 1080,\n \"positionX\": -1920,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n },\n {\n \"vendor\": \"\",\n \"model\": \"\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY3\",\n \"main\": false,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 2560,\n \"resolutionY\": 1440,\n \"sizeX\": 53,\n \"sizeY\": 30,\n \"pixelDepth\": \"32\",\n \"currentResX\": 2560,\n \"currentResY\": 1440,\n \"positionX\": 3840,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n }\n]\n },\n \"net\": [\n {\n \"iface\": \"Eth0\",\n \"ifaceName\": \"Intel(R) Ethernet Connection (7) I219-V\",\n \"default\": true,\n \"ip4\": \"192.168.0.64\",\n \"ip4subnet\": \"255.255.255.0\",\n \"ip6\": \"2601:151:8300:e9c:9673:3210:7700:1c43\",\n \"ip6subnet\": \"ffff:ffff:ffff:ffff::\",\n \"mac\": \"b4:2e:99:8e:e5:47\",\n \"internal\": false,\n \"virtual\": false,\n \"operstate\": \"up\",\n \"type\": \"wired\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": 1000,\n \"dhcp\": true,\n \"dnsSuffix\": \"hsd1.wv.comcast.net\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n },\n {\n \"iface\": \"Loopback Pseudo-Interface 1\",\n \"ifaceName\": \"Loopback Pseudo-Interface 1\",\n \"default\": false,\n \"ip4\": \"127.0.0.1\",\n \"ip4subnet\": \"255.0.0.0\",\n \"ip6\": \"::1\",\n \"ip6subnet\": \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\",\n \"mac\": \"00:00:00:00:00:00\",\n \"internal\": true,\n \"virtual\": false,\n \"operstate\": \"down\",\n \"type\": \"\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": null,\n \"dhcp\": false,\n \"dnsSuffix\": \"\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n },\n {\n \"iface\": \"Wi-Fi\",\n \"ifaceName\": \"Intel(R) Wireless-AC 9560 160MHz\",\n \"default\": false,\n \"ip4\": \"\",\n \"ip4subnet\": \"\",\n \"ip6\": \"\",\n \"ip6subnet\": \"\",\n \"mac\": \"\",\n \"virtual\": false,\n \"operstate\": \"down\",\n \"type\": \"wireless\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": null,\n \"dhcp\": true,\n \"dnsSuffix\": \"\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n }\n],\n \"memLayout\": [\n {\n \"size\": 17179869184,\n \"bank\": \"BANK 1\",\n \"type\": \"DDR4\",\n \"ecc\": false,\n \"clockSpeed\": 3200,\n \"formFactor\": \"DIMM\",\n \"manufacturer\": \"04CD\",\n \"partNum\": \"F4-3200C16-16GVK\",\n \"serialNum\": \"00000000\",\n \"voltageConfigured\": 1.2,\n \"voltageMin\": 1.2,\n \"voltageMax\": 1.2\n },\n {\n \"size\": 17179869184,\n \"bank\": \"BANK 3\",\n \"type\": \"DDR4\",\n \"ecc\": false,\n \"clockSpeed\": 3200,\n \"formFactor\": \"DIMM\",\n \"manufacturer\": \"04CD\",\n \"partNum\": \"F4-3200C16-16GVK\",\n \"serialNum\": \"00000000\",\n \"voltageConfigured\": 1.2,\n \"voltageMin\": 1.2,\n \"voltageMax\": 1.2\n }\n],\n \"diskLayout\": [\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE4\",\n \"type\": \"SSD\",\n \"name\": \"SPCC M.2 PCIe SSD\",\n \"vendor\": \"\",\n \"size\": 256052966400,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 31130,\n \"totalHeads\": 255,\n \"totalSectors\": 500103450,\n \"totalTracks\": 7938150,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"S0614B0\",\n \"serialNum\": \"0100_0000_0000_0000.\",\n \"interfaceType\": \"NVMe\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE1\",\n \"type\": \"HD\",\n \"name\": \"ST2000DM001-1CH164\",\n \"vendor\": \"Seagate\",\n \"size\": 2000396321280,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 243201,\n \"totalHeads\": 255,\n \"totalSectors\": 3907024065,\n \"totalTracks\": 62016255,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"HP36\",\n \"serialNum\": \"Z1E8L0YY\",\n \"interfaceType\": \"SATA\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE0\",\n \"type\": \"HD\",\n \"name\": \"ST9640320AS\",\n \"vendor\": \"Seagate\",\n \"size\": 640132416000,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 77825,\n \"totalHeads\": 255,\n \"totalSectors\": 1250258625,\n \"totalTracks\": 19845375,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"0002HPM1\",\n \"serialNum\": \"5WX2KXLV\",\n \"interfaceType\": \"SATA\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE2\",\n \"type\": \"SSD\",\n \"name\": \"Samsung SSD 850 EVO 500GB\",\n \"vendor\": \"Samsung\",\n \"size\": 500105249280,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 60801,\n \"totalHeads\": 255,\n \"totalSectors\": 976768065,\n \"totalTracks\": 15504255,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"EMT02B6Q\",\n \"serialNum\": \"S2RANX0H825794M\",\n \"interfaceType\": \"SATA\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE3\",\n \"type\": \"SSD\",\n \"name\": \"Samsung SSD 970 EVO Plus 1TB\",\n \"vendor\": \"Samsung\",\n \"size\": 1000202273280,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 121601,\n \"totalHeads\": 255,\n \"totalSectors\": 1953520065,\n \"totalTracks\": 31008255,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"2B2Q\",\n \"serialNum\": \"0025_3851_0141_DF22.\",\n \"interfaceType\": \"NVMe\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n }\n]\n}","output":"json","x":260,"y":740,"wires":[["6644ed21fe795c03"]]},{"id":"839c0b83008329d3","type":"inject","z":"bec7048b1f74f182","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":100,"y":740,"wires":[["d4ae6622b4e4681c"]]}]

```

The function works and I can output the results to the console but when I try to modify it to send the output to msg.payload the code fails.

Can some one show me how to send the console.log output as a message?

thx

---

<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:** [27 February 2025 23:58 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/2 "2025-02-27T23:58:59Z")

</div>

I frequently see `console.log` in snippets of javascript online. I don't know where it logs to when called in Node-red functions. I always replace this with `node.warn()` to output to the editor debug panel.

Doing this in your flow I see hundreds of data snippets output individually, eg

```auto
diskLayout.4.totalTracks: 31008255

```

To send data as a message you should build a json object with a payload and call node.send(). Potentially something like this.

```auto
const allKeyValuePairs = getAllKeyValuePairs(myJsonObject);
allKeyValuePairs.forEach(item => {
  const key = item.path
  const value = item.value
let newmsg = {"payload": {key: value} }
node.send(newmsg)
//node.warn(`${item.path}: ${item.value}`);
});

```

I can't actually see a good reason to break the input data up like this, but if I did want to, I'd consider using cascading Split nodes rather than writing a function.

---

<div class="post-metadata">

**Author:** ![Mick](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mick/32/80990_2.png) [@Mick](https://discourse.nodered.org/u/Mick)\
**Post date:** [28 February 2025 00:17 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/3 "2025-02-28T00:17:05Z")

</div>

@jbudd

Yes you are correct that this is generated from AI. I did not realize the function would output one message per key/value. To give you some context I am trying to come up with a reusable function that I can pass to a UI template node to auto populate key/value pairs.

For example when I send the template output to UI template node with:

```auto
<script>
    (function(scope) {
        scope.$watch('msg.payload', function(data) {
            const container = document.getElementById("container");
            
            while (container.firstChild) {
                container.removeChild(container.firstChild);
            }

            for (const key in data) {
            const element = document.createElement("p");
            element.textContent = `${key}: ${data[key]}`;
            container.appendChild(element);
            }

        });
    })(scope);

</script>
<h2>System Info </h2>
<div id="container"></div>

```

The code will not iterate through all the json objects. See below:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/9/d91672991cd6e425cb8a411175837bca048cb46c.png)

I got around it by using specific objects but I would like to be able to have the code iterate through the entire object for input in the UI Template.

thx

---

<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:** [28 February 2025 00:53 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/4 "2025-02-28T00:53:47Z")

</div>

Unfortunately my brain always freezes up when confronted by javascript in a UI template, it's all too abstracted to deal with.

I can start with a specific input message such as in your first post, and work out how to get a defined layout of items in a [diagram of the] template, but that's about all I can manage 😐

---

<div class="post-metadata">

**Author:** ![kitori](https://avatars.discourse-cdn.com/v4/letter/k/f08c70/32.png) [@kitori](https://discourse.nodered.org/u/kitori)\
**Post date:** [28 February 2025 07:06 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/5 "2025-02-28T07:06:36Z")

</div>

You can try convert the json to yaml, and then just show the string in an Markdown node. Then you dont have the json clutter

 ![grafik](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/9/0915c2ad8aed071c51e56d6ef1d93968202cd918.png)

````auto
[{"id":"d4f3fe628a423909","type":"yaml","z":"617486c48a1f4814","property":"payload","name":"","x":470,"y":260,"wires":[["95fdd7f5981bc3b8","582dc7255d0a6983"]]},{"id":"582dc7255d0a6983","type":"ui-markdown","z":"617486c48a1f4814","group":"aeb58423b25112a4","name":"","order":1,"width":0,"height":0,"content":"```\n{{msg?.payload}}\n```","className":"","x":630,"y":260,"wires":[[]]},{"id":"d4ae6622b4e4681c","type":"template","z":"617486c48a1f4814","name":"","field":"payload","fieldType":"msg","format":"json","syntax":"plain","template":"{\n \"version\": \"5.21.22\",\n \"system\": {\n \"manufacturer\": \"Gigabyte Technology Co., Ltd.\",\n \"model\": \"Z390 AORUS PRO WIFI\",\n \"version\": \"Default string\",\n \"serial\": \"Default string\",\n \"uuid\": \"032e02b4-0499-058e-e506-470700080009\",\n \"sku\": \"Default string\",\n \"virtual\": false\n },\n \"bios\": {\n \"vendor\": \"American Megatrends Inc.\",\n \"version\": \"F10\",\n \"releaseDate\": \"2019-06-04\",\n \"revision\": \"\",\n \"serial\": \"\"\n },\n \"baseboard\": {\n \"manufacturer\": \"Gigabyte Technology Co., Ltd.\",\n \"model\": \"Z390 AORUS PRO WIFI-CF\",\n \"version\": \"x.x\",\n \"serial\": \"\",\n \"assetTag\": \"\",\n \"memMax\": 68719476736,\n \"memSlots\": 4\n },\n \"chassis\": {\n \"manufacturer\": \"\",\n \"model\": \"\",\n \"type\": \"Desktop\",\n \"version\": \"\",\n \"serial\": \"\",\n \"assetTag\": \"\",\n \"sku\": \"\"\n },\n \"os\": {\n \"platform\": \"Windows\",\n \"distro\": \"Microsoft Windows 11 Pro\",\n \"release\": \"10.0.26120\",\n \"codename\": \"\",\n \"kernel\": \"10.0.26120\",\n \"arch\": \"x64\",\n \"hostname\": \"w8be-prod\",\n \"fqdn\": \"W8BE-PROD\",\n \"codepage\": \"437\",\n \"logofile\": \"windows\",\n \"serial\": \"00330-80021-43272-AA568\",\n \"build\": \"26120\",\n \"servicepack\": \"0.0\",\n \"uefi\": true,\n \"hypervisor\": false,\n \"remoteSession\": false\n },\n \"uuid\": {\n \"os\": \"596d850e-1cbc-456d-81c8-9dbeb723a679\",\n \"hardware\": \"032e02b4-0499-058e-e506-470700080009\",\n \"macs\": [\n \"b4:2e:99:8e:e5:47\"\n]\n },\n \"versions\": {\n \"kernel\": \"10.0.26120\",\n \"openssl\": \"3.0.13+quic\",\n \"systemOpenssl\": \"\",\n \"systemOpensslLib\": \"\",\n \"node\": \"20.15.0\",\n \"v8\": \"11.3.244.8-node.23\",\n \"npm\": \"10.8.1\",\n \"yarn\": \"\",\n \"pm2\": \"\",\n \"gulp\": \"\",\n \"grunt\": \"\",\n \"git\": \"2.47.0.windows.2\",\n \"tsc\": \"\",\n \"mysql\": \"\",\n \"redis\": \"\",\n \"mongodb\": \"\",\n \"apache\": \"\",\n \"nginx\": \"\",\n \"php\": \"\",\n \"docker\": \"\",\n \"postfix\": \"\",\n \"postgresql\": \"\",\n \"perl\": \"\",\n \"python\": \"3.11.0\",\n \"python3\": \"\",\n \"pip\": \"22.3\",\n \"pip3\": \"22.3\",\n \"java\": \"\",\n \"gcc\": \"\",\n \"virtualbox\": \"\",\n \"bash\": \"\",\n \"zsh\": \"\",\n \"fish\": \"\",\n \"powershell\": \"5.1.26100.2200:\",\n \"dotnet\": \"4.8.09032\"\n },\n \"cpu\": {\n \"manufacturer\": \"Intel\",\n \"brand\": \"Core™ i9-9900K\",\n \"vendor\": \"GenuineIntel\",\n \"family\": \"6\",\n \"model\": \"158\",\n \"stepping\": \"13\",\n \"revision\": \"\",\n \"voltage\": \"\",\n \"speed\": 3.6,\n \"speedMin\": 3.6,\n \"speedMax\": 3.6,\n \"governor\": \"\",\n \"cores\": 16,\n \"physicalCores\": 8,\n \"performanceCores\": 16,\n \"efficiencyCores\": 0,\n \"processors\": 1,\n \"socket\": \"LGA1151\",\n \"flags\": \"de pse tsc msr mce sep mtrr mca cmov psn clfsh ds acpi mmx fxsr sse sse2 ss htt tm ia64 pbe\",\n \"virtualization\": false,\n \"cache\": {\n \"l1d\": 256,\n \"l1i\": 256,\n \"l2\": 2097152,\n \"l3\": 16777216\n }\n },\n \"graphics\": {\n \"controllers\": [\n {\n \"vendor\": \"Advanced Micro Devices, Inc.\",\n \"model\": \"ASUS Radeon RX 580 Series\",\n \"bus\": \"PCI\",\n \"vram\": 8192,\n \"vramDynamic\": true,\n \"subDeviceId\": \"2378148C\"\n }\n],\n \"displays\": [\n {\n \"vendor\": \"(Standard monitor types)\",\n \"model\": \"Generic PnP Monitor\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY2\",\n \"main\": true,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 3072,\n \"resolutionY\": 1728,\n \"sizeX\": 53,\n \"sizeY\": 30,\n \"pixelDepth\": \"32\",\n \"currentResX\": 3072,\n \"currentResY\": 1728,\n \"positionX\": 0,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n },\n {\n \"vendor\": \"\",\n \"model\": \"\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY1\",\n \"main\": false,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 1920,\n \"resolutionY\": 1080,\n \"sizeX\": 70,\n \"sizeY\": 40,\n \"pixelDepth\": \"32\",\n \"currentResX\": 1920,\n \"currentResY\": 1080,\n \"positionX\": -1920,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n },\n {\n \"vendor\": \"\",\n \"model\": \"\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY3\",\n \"main\": false,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 2560,\n \"resolutionY\": 1440,\n \"sizeX\": 53,\n \"sizeY\": 30,\n \"pixelDepth\": \"32\",\n \"currentResX\": 2560,\n \"currentResY\": 1440,\n \"positionX\": 3840,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n }\n]\n },\n \"net\": [\n {\n \"iface\": \"Eth0\",\n \"ifaceName\": \"Intel(R) Ethernet Connection (7) I219-V\",\n \"default\": true,\n \"ip4\": \"192.168.0.64\",\n \"ip4subnet\": \"255.255.255.0\",\n \"ip6\": \"2601:151:8300:e9c:9673:3210:7700:1c43\",\n \"ip6subnet\": \"ffff:ffff:ffff:ffff::\",\n \"mac\": \"b4:2e:99:8e:e5:47\",\n \"internal\": false,\n \"virtual\": false,\n \"operstate\": \"up\",\n \"type\": \"wired\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": 1000,\n \"dhcp\": true,\n \"dnsSuffix\": \"hsd1.wv.comcast.net\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n },\n {\n \"iface\": \"Loopback Pseudo-Interface 1\",\n \"ifaceName\": \"Loopback Pseudo-Interface 1\",\n \"default\": false,\n \"ip4\": \"127.0.0.1\",\n \"ip4subnet\": \"255.0.0.0\",\n \"ip6\": \"::1\",\n \"ip6subnet\": \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\",\n \"mac\": \"00:00:00:00:00:00\",\n \"internal\": true,\n \"virtual\": false,\n \"operstate\": \"down\",\n \"type\": \"\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": null,\n \"dhcp\": false,\n \"dnsSuffix\": \"\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n },\n {\n \"iface\": \"Wi-Fi\",\n \"ifaceName\": \"Intel(R) Wireless-AC 9560 160MHz\",\n \"default\": false,\n \"ip4\": \"\",\n \"ip4subnet\": \"\",\n \"ip6\": \"\",\n \"ip6subnet\": \"\",\n \"mac\": \"\",\n \"virtual\": false,\n \"operstate\": \"down\",\n \"type\": \"wireless\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": null,\n \"dhcp\": true,\n \"dnsSuffix\": \"\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n }\n],\n \"memLayout\": [\n {\n \"size\": 17179869184,\n \"bank\": \"BANK 1\",\n \"type\": \"DDR4\",\n \"ecc\": false,\n \"clockSpeed\": 3200,\n \"formFactor\": \"DIMM\",\n \"manufacturer\": \"04CD\",\n \"partNum\": \"F4-3200C16-16GVK\",\n \"serialNum\": \"00000000\",\n \"voltageConfigured\": 1.2,\n \"voltageMin\": 1.2,\n \"voltageMax\": 1.2\n },\n {\n \"size\": 17179869184,\n \"bank\": \"BANK 3\",\n \"type\": \"DDR4\",\n \"ecc\": false,\n \"clockSpeed\": 3200,\n \"formFactor\": \"DIMM\",\n \"manufacturer\": \"04CD\",\n \"partNum\": \"F4-3200C16-16GVK\",\n \"serialNum\": \"00000000\",\n \"voltageConfigured\": 1.2,\n \"voltageMin\": 1.2,\n \"voltageMax\": 1.2\n }\n],\n \"diskLayout\": [\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE4\",\n \"type\": \"SSD\",\n \"name\": \"SPCC M.2 PCIe SSD\",\n \"vendor\": \"\",\n \"size\": 256052966400,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 31130,\n \"totalHeads\": 255,\n \"totalSectors\": 500103450,\n \"totalTracks\": 7938150,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"S0614B0\",\n \"serialNum\": \"0100_0000_0000_0000.\",\n \"interfaceType\": \"NVMe\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE1\",\n \"type\": \"HD\",\n \"name\": \"ST2000DM001-1CH164\",\n \"vendor\": \"Seagate\",\n \"size\": 2000396321280,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 243201,\n \"totalHeads\": 255,\n \"totalSectors\": 3907024065,\n \"totalTracks\": 62016255,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"HP36\",\n \"serialNum\": \"Z1E8L0YY\",\n \"interfaceType\": \"SATA\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE0\",\n \"type\": \"HD\",\n \"name\": \"ST9640320AS\",\n \"vendor\": \"Seagate\",\n \"size\": 640132416000,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 77825,\n \"totalHeads\": 255,\n \"totalSectors\": 1250258625,\n \"totalTracks\": 19845375,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"0002HPM1\",\n \"serialNum\": \"5WX2KXLV\",\n \"interfaceType\": \"SATA\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE2\",\n \"type\": \"SSD\",\n \"name\": \"Samsung SSD 850 EVO 500GB\",\n \"vendor\": \"Samsung\",\n \"size\": 500105249280,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 60801,\n \"totalHeads\": 255,\n \"totalSectors\": 976768065,\n \"totalTracks\": 15504255,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"EMT02B6Q\",\n \"serialNum\": \"S2RANX0H825794M\",\n \"interfaceType\": \"SATA\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n },\n {\n \"device\": \"\\\\\\\\.\\\\PHYSICALDRIVE3\",\n \"type\": \"SSD\",\n \"name\": \"Samsung SSD 970 EVO Plus 1TB\",\n \"vendor\": \"Samsung\",\n \"size\": 1000202273280,\n \"bytesPerSector\": 512,\n \"totalCylinders\": 121601,\n \"totalHeads\": 255,\n \"totalSectors\": 1953520065,\n \"totalTracks\": 31008255,\n \"tracksPerCylinder\": 255,\n \"sectorsPerTrack\": 63,\n \"firmwareRevision\": \"2B2Q\",\n \"serialNum\": \"0025_3851_0141_DF22.\",\n \"interfaceType\": \"NVMe\",\n \"smartStatus\": \"Ok\",\n \"temperature\": null\n }\n]\n}","output":"json","x":320,"y":260,"wires":[["d4f3fe628a423909"]]},{"id":"839c0b83008329d3","type":"inject","z":"617486c48a1f4814","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":160,"y":260,"wires":[["d4ae6622b4e4681c"]]},{"id":"aeb58423b25112a4","type":"ui-group","name":"Group Name","page":"a3c04197f8e84242","width":6,"height":1,"order":1,"showTitle":true,"className":"","visible":"true","disabled":"false","groupType":"default"},{"id":"a3c04197f8e84242","type":"ui-page","name":"Test","ui":"593e5289bfb8381f","path":"/test","icon":"home","layout":"grid","theme":"8320d2deb29c6eb8","breakpoints":[{"name":"Default","px":"0","cols":"3"},{"name":"Tablet","px":"576","cols":"6"},{"name":"Small Desktop","px":"768","cols":"9"},{"name":"Desktop","px":"1024","cols":"12"}],"order":3,"className":"","visible":"true","disabled":"false"},{"id":"593e5289bfb8381f","type":"ui-base","name":"Node-RED Dashboard","path":"/dashboard","includeClientData":true,"acceptsClientConfig":["ui-template","ui-control","ui-chart","ui-table","ui-dropdown","ui-gauge","ui-notification","ui-markdown","ui-text","ui-switch","ui-slider","ui-radio-group","ui-button-group","ui-button","ui-file-input","ui-text-input","ui-form","ui-number-input","ui-audio"],"showPathInSidebar":false,"headerContent":"page","navigationStyle":"default","titleBarStyle":"default","notificationDisplayTime":5},{"id":"8320d2deb29c6eb8","type":"ui-theme","name":"Default Compact","colors":{"surface":"#ffffff","primary":"#0094ce","bgPage":"#eeeeee","groupBg":"#ffffff","groupOutline":"#cccccc"},"sizes":{"pagePadding":"12px","groupGap":"12px","groupBorderRadius":"4px","widgetGap":"12px","density":"comfortable"}}]

````

---

<div class="post-metadata">

**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [28 February 2025 07:21 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/6 "2025-02-28T07:21:54Z")

</div>

If i understand correctly, this may be what you require

```auto
function getAllKeyValuePairs(obj, path = '') {
  const results = [];

  for (const key in obj) {
    if (obj.hasOwnProperty(key)) {
      const currentPath = path ? `${path}.${key}` : key;
      const value = obj[key];

      if (typeof value === 'object' && value !== null) {
        results.push(...getAllKeyValuePairs(value, currentPath));
      } else {
        results.push({ [currentPath]: value });
      }
    }
  }

  return results;
}

msg.payload = getAllKeyValuePairs(msg.payload);
return msg

```

Or may be you need a object?

```auto
function getAllKeyValuePairs(obj, path = '') {
  let results = {};

  for (const key in obj) {
    if (obj.hasOwnProperty(key)) {
      const currentPath = path ? `${path}.${key}` : key;
      const value = obj[key];

      if (typeof value === 'object' && value !== null) {
        results = Object.assign(results, getAllKeyValuePairs(value, currentPath));
      } else {
        results[currentPath] = value;
      }
    }
  }

  return results;
}

msg.payload = getAllKeyValuePairs(msg.payload);
return msg

```

Or possibly a string with each item on a new line then @kitori suggestion would be a good solution.

---

<div class="post-metadata">

**Author:** ![kitori](https://avatars.discourse-cdn.com/v4/letter/k/f08c70/32.png) [@kitori](https://discourse.nodered.org/u/kitori)\
**Post date:** [28 February 2025 08:31 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/7 "2025-02-28T08:31:58Z")

</div>

Implementation without function node. The path is an array, and after the split nodes the current key(or array index) is pushed to this property.

Since i dont now in advance how many elements i get, the join node wait for 100ms until it join the messages. Is there a better option?

 ![grafik](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/5/b/5bbe536008c30343650434bcca45921029e171ae.png)

```auto
[{"id":"95fdd7f5981bc3b8","type":"debug","z":"617486c48a1f4814","name":"debug 35","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1160,"y":520,"wires":[]},{"id":"d4ae6622b4e4681c","type":"template","z":"617486c48a1f4814","name":"","field":"payload","fieldType":"msg","format":"json","syntax":"plain","template":"{\n \"version\": \"5.21.22\",\n \"system\": {\n \"manufacturer\": \"Gigabyte Technology Co., Ltd.\",\n \"model\": \"Z390 AORUS PRO WIFI\",\n \"version\": \"Default string\",\n \"serial\": \"Default string\",\n \"uuid\": \"032e02b4-0499-058e-e506-470700080009\",\n \"sku\": \"Default string\",\n \"virtual\": false\n },\n \"bios\": {\n \"vendor\": \"American Megatrends Inc.\",\n \"version\": \"F10\",\n \"releaseDate\": \"2019-06-04\",\n \"revision\": \"\",\n \"serial\": \"\"\n },\n \"baseboard\": {\n \"manufacturer\": \"Gigabyte Technology Co., Ltd.\",\n \"model\": \"Z390 AORUS PRO WIFI-CF\",\n \"version\": \"x.x\",\n \"serial\": \"\",\n \"assetTag\": \"\",\n \"memMax\": 68719476736,\n \"memSlots\": 4\n },\n \"chassis\": {\n \"manufacturer\": \"\",\n \"model\": \"\",\n \"type\": \"Desktop\",\n \"version\": \"\",\n \"serial\": \"\",\n \"assetTag\": \"\",\n \"sku\": \"\"\n },\n \"os\": {\n \"platform\": \"Windows\",\n \"distro\": \"Microsoft Windows 11 Pro\",\n \"release\": \"10.0.26120\",\n \"codename\": \"\",\n \"kernel\": \"10.0.26120\",\n \"arch\": \"x64\",\n \"hostname\": \"w8be-prod\",\n \"fqdn\": \"W8BE-PROD\",\n \"codepage\": \"437\",\n \"logofile\": \"windows\",\n \"serial\": \"00330-80021-43272-AA568\",\n \"build\": \"26120\",\n \"servicepack\": \"0.0\",\n \"uefi\": true,\n \"hypervisor\": false,\n \"remoteSession\": false\n },\n \"uuid\": {\n \"os\": \"596d850e-1cbc-456d-81c8-9dbeb723a679\",\n \"hardware\": \"032e02b4-0499-058e-e506-470700080009\",\n \"macs\": [\n \"b4:2e:99:8e:e5:47\"\n]\n },\n \"versions\": {\n \"kernel\": \"10.0.26120\",\n \"openssl\": \"3.0.13+quic\",\n \"systemOpenssl\": \"\",\n \"systemOpensslLib\": \"\",\n \"node\": \"20.15.0\",\n \"v8\": \"11.3.244.8-node.23\",\n \"npm\": \"10.8.1\",\n \"yarn\": \"\",\n \"pm2\": \"\",\n \"gulp\": \"\",\n \"grunt\": \"\",\n \"git\": \"2.47.0.windows.2\",\n \"tsc\": \"\",\n \"mysql\": \"\",\n \"redis\": \"\",\n \"mongodb\": \"\",\n \"apache\": \"\",\n \"nginx\": \"\",\n \"php\": \"\",\n \"docker\": \"\",\n \"postfix\": \"\",\n \"postgresql\": \"\",\n \"perl\": \"\",\n \"python\": \"3.11.0\",\n \"python3\": \"\",\n \"pip\": \"22.3\",\n \"pip3\": \"22.3\",\n \"java\": \"\",\n \"gcc\": \"\",\n \"virtualbox\": \"\",\n \"bash\": \"\",\n \"zsh\": \"\",\n \"fish\": \"\",\n \"powershell\": \"5.1.26100.2200:\",\n \"dotnet\": \"4.8.09032\"\n },\n \"cpu\": {\n \"manufacturer\": \"Intel\",\n \"brand\": \"Core™ i9-9900K\",\n \"vendor\": \"GenuineIntel\",\n \"family\": \"6\",\n \"model\": \"158\",\n \"stepping\": \"13\",\n \"revision\": \"\",\n \"voltage\": \"\",\n \"speed\": 3.6,\n \"speedMin\": 3.6,\n \"speedMax\": 3.6,\n \"governor\": \"\",\n \"cores\": 16,\n \"physicalCores\": 8,\n \"performanceCores\": 16,\n \"efficiencyCores\": 0,\n \"processors\": 1,\n \"socket\": \"LGA1151\",\n \"flags\": \"de pse tsc msr mce sep mtrr mca cmov psn clfsh ds acpi mmx fxsr sse sse2 ss htt tm ia64 pbe\",\n \"virtualization\": false,\n \"cache\": {\n \"l1d\": 256,\n \"l1i\": 256,\n \"l2\": 2097152,\n \"l3\": 16777216\n }\n },\n \"graphics\": {\n \"controllers\": [\n {\n \"vendor\": \"Advanced Micro Devices, Inc.\",\n \"model\": \"ASUS Radeon RX 580 Series\",\n \"bus\": \"PCI\",\n \"vram\": 8192,\n \"vramDynamic\": true,\n \"subDeviceId\": \"2378148C\"\n }\n],\n \"displays\": [\n {\n \"vendor\": \"(Standard monitor types)\",\n \"model\": \"Generic PnP Monitor\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY2\",\n \"main\": true,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 3072,\n \"resolutionY\": 1728,\n \"sizeX\": 53,\n \"sizeY\": 30,\n \"pixelDepth\": \"32\",\n \"currentResX\": 3072,\n \"currentResY\": 1728,\n \"positionX\": 0,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n },\n {\n \"vendor\": \"\",\n \"model\": \"\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY1\",\n \"main\": false,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 1920,\n \"resolutionY\": 1080,\n \"sizeX\": 70,\n \"sizeY\": 40,\n \"pixelDepth\": \"32\",\n \"currentResX\": 1920,\n \"currentResY\": 1080,\n \"positionX\": -1920,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n },\n {\n \"vendor\": \"\",\n \"model\": \"\",\n \"deviceName\": \"\\\\\\\\.\\\\DISPLAY3\",\n \"main\": false,\n \"builtin\": false,\n \"connection\": \"DP\",\n \"resolutionX\": 2560,\n \"resolutionY\": 1440,\n \"sizeX\": 53,\n \"sizeY\": 30,\n \"pixelDepth\": \"32\",\n \"currentResX\": 2560,\n \"currentResY\": 1440,\n \"positionX\": 3840,\n \"positionY\": 0,\n \"currentRefreshRate\": 60\n }\n]\n },\n \"net\": [\n {\n \"iface\": \"Eth0\",\n \"ifaceName\": \"Intel(R) Ethernet Connection (7) I219-V\",\n \"default\": true,\n \"ip4\": \"192.168.0.64\",\n \"ip4subnet\": \"255.255.255.0\",\n \"ip6\": \"2601:151:8300:e9c:9673:3210:7700:1c43\",\n \"ip6subnet\": \"ffff:ffff:ffff:ffff::\",\n \"mac\": \"b4:2e:99:8e:e5:47\",\n \"internal\": false,\n \"virtual\": false,\n \"operstate\": \"up\",\n \"type\": \"wired\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": 1000,\n \"dhcp\": true,\n \"dnsSuffix\": \"hsd1.wv.comcast.net\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n },\n {\n \"iface\": \"Loopback Pseudo-Interface 1\",\n \"ifaceName\": \"Loopback Pseudo-Interface 1\",\n \"default\": false,\n \"ip4\": \"127.0.0.1\",\n \"ip4subnet\": \"255.0.0.0\",\n \"ip6\": \"::1\",\n \"ip6subnet\": \"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff\",\n \"mac\": \"00:00:00:00:00:00\",\n \"internal\": true,\n \"virtual\": false,\n \"operstate\": \"down\",\n \"type\": \"\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": null,\n \"dhcp\": false,\n \"dnsSuffix\": \"\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n },\n {\n \"iface\": \"Wi-Fi\",\n \"ifaceName\": \"Intel(R) Wireless-AC 9560 160MHz\",\n \"default\": false,\n \"ip4\": \"\",\n \"ip4subnet\": \"\",\n \"ip6\": \"\",\n \"ip6subnet\": \"\",\n \"mac\": \"\",\n \"virtual\": false,\n \"operstate\": \"down\",\n \"type\": \"wireless\",\n \"duplex\": \"\",\n \"mtu\": \"\",\n \"speed\": null,\n \"dhcp\": true,\n \"dnsSuffix\": \"\",\n \"ieee8021xAuth\": \"Not defined\",\n \"ieee8021xState\": \"Disabled\",\n \"carrierChanges\": 0\n }\n],\n \"memLayout\": [\n {\n \"size\": 17179869184,\n \"bank\": \"BANK 1\",\n \"type\": \"DDR4\",\n \"ecc\": false,\n \"clockSpeed\": 3200,\n \"formFactor\": \"DIMM\",\n \"manufacturer\": \"04CD\",\n \"partNum\": \"F4-3200C16-16GVK\",\n \"serialNum\": \"00000000\",\n \"voltageConfigured\": 1.2,\n \"voltageMin\": 1.2,\n \"voltageMax\": 1.2\n },\n {\n \"size\": 17179869184,\n 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```

---

<div class="post-metadata">

**Author:** ![Mick](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mick/32/80990_2.png) [@Mick](https://discourse.nodered.org/u/Mick)\
**Post date:** [28 February 2025 17:31 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/8 "2025-02-28T17:31:21Z")

</div>

Thank you all for replying. When I ran JBudd's function I realized what was happening and that was not my intent. I am trying to get to a point where I have functions I can reuse and I think the getAllKeyValuePairs function will do the trick. At the end of the day I envision being able to run a json object into the function, then feed that into the UI template to auto populate the data. I can load the function in global context and just assign a const value to the context then call it when I need it in my flows. I think E1cid's object rewrite is what I can use for the global function.

Once again thanks

---

<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:** [28 February 2025 18:11 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/9 "2025-02-28T18:11:44Z")

</div>

@E1cid solution is a great example of recursion however it will crash with a stack overflow if there are circular refs in the object pass to it.

If you are certain there will never be any circular refs in your data - forget I mentioned it.

If you do need to handle this, then it is pretty easy to handle (e.g. use a `Set` to keep track of visited paths & provide a quick escape)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [14 March 2025 18:12 UTC](https://discourse.nodered.org/t/javascript-function-to-parse-complex-json-object/95700/10 "2025-03-14T18:12:42Z")

</div>

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