# Latest

**URL:** https://discourse.nodered.org/latest.md?page=673

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 674

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## [Show / hide groups with spaces in groupname](https://discourse.nodered.org/t/show-hide-groups-with-spaces-in-groupname/55229)

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**Author:** [@henkkas](https://discourse.nodered.org/u/henkkas)\
**Replies:** 3\
**Last updated:** [15 December 2021 11:22 UTC](https://discourse.nodered.org/t/show-hide-groups-with-spaces-in-groupname/55229 "2021-12-15T11:22:19Z")

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Showing and hiding groups is working well for me, but I have an issue when there is one or more spaces in the groupname. I have overcome this temporarily with adding an underscore in the groupname instead of a space. Is …

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## [Node red and log4j vulnerability](https://discourse.nodered.org/t/node-red-and-log4j-vulnerability/55191)

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**Author:** [@TKFCE](https://discourse.nodered.org/u/TKFCE)\
**Replies:** 5\
**Last updated:** [15 December 2021 11:08 UTC](https://discourse.nodered.org/t/node-red-and-log4j-vulnerability/55191 "2021-12-15T11:08:02Z")

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Hi Treasured node-red community. Is there any indication from Devs if node-red might be affected by the log4j vulnerability? Tech Solvency: The Story So Far: CVE-2021-44228 (Log4Shell log4j vulnerability). Naturally w…

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## [UI\_LED (0.4.11) giving error "RangeError: Maximum call stack size exceeded" \[SOLVED\]](https://discourse.nodered.org/t/ui-led-0-4-11-giving-error-rangeerror-maximum-call-stack-size-exceeded-solved/55121)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 23\
**Last updated:** [15 December 2021 10:30 UTC](https://discourse.nodered.org/t/ui-led-0-4-11-giving-error-rangeerror-maximum-call-stack-size-exceeded-solved/55121 "2021-12-15T10:30:07Z")

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UI\_LED (0.4.11) version giving error "RangeError: Maximum call stack size exceeded" my input rate is 1 message per 10 second, alternating true and false i now temporarily put a button node to show green and red color w…

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## [Memory leak ?... trouble performance now](https://discourse.nodered.org/t/memory-leak-trouble-performance-now/55119)

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**Author:** [@henkkas](https://discourse.nodered.org/u/henkkas)\
**Replies:** 35\
**Last updated:** [15 December 2021 09:35 UTC](https://discourse.nodered.org/t/memory-leak-trouble-performance-now/55119 "2021-12-15T09:35:32Z")

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When I first started with Node-red. I had trouble with memory leak, but after 1 or 2 months, it disappeared. Now for as long as 2 months, I have the same issue again. But my application works fine, so far. Every now an…

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## [Ui-table row contextmenu doesn't work?](https://discourse.nodered.org/t/ui-table-row-contextmenu-doesnt-work/54851)

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**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 9\
**Last updated:** [15 December 2021 04:47 UTC](https://discourse.nodered.org/t/ui-table-row-contextmenu-doesnt-work/54851 "2021-12-15T04:47:44Z")

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Hello, I am trying to add Context menu on node-red-ui-table using the msg.ui\_control as seen below: However, It doesn't work when I right-clicked on my table. As per Tabulator's manual: I don't know what I did w…

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## [Create new empty message using Trigger node](https://discourse.nodered.org/t/create-new-empty-message-using-trigger-node/53203)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 1\
**Last updated:** [14 December 2021 23:23 UTC](https://discourse.nodered.org/t/create-new-empty-message-using-trigger-node/53203 "2021-12-14T23:23:40Z")

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While the discussion over change node having ability to delete whole msg properties continues.. I'm wondering if (as probably simple to implement, without side effects and be very explicit) the trigger node could have "…

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## [ui\_LED problem not showing on dashboard](https://discourse.nodered.org/t/ui-led-problem-not-showing-on-dashboard/7456)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 26\
**Last updated:** [14 December 2021 22:39 UTC](https://discourse.nodered.org/t/ui-led-problem-not-showing-on-dashboard/7456 "2021-12-14T22:39:54Z")

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I have installed the ui\_LED on one machine and it works. I send it either a true and the LED goes GREEN. Sending a ~true and it turns RED. This is on NR 0.19.4 I installed the node on another machine running NR 0.19.…

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## [Subflows with no input. Can it only be used once?](https://discourse.nodered.org/t/subflows-with-no-input-can-it-only-be-used-once/55201)

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**Author:** [@quarfie](https://discourse.nodered.org/u/quarfie)\
**Replies:** 1\
**Last updated:** [14 December 2021 20:46 UTC](https://discourse.nodered.org/t/subflows-with-no-input-can-it-only-be-used-once/55201 "2021-12-14T20:46:45Z")

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I created a subflow with no input. The starting node inside the subflow is an http in node. Can this type of subflow only be represented once in the dashboard? It seems that only the first created occurrence is function…

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## [My Flows are gone](https://discourse.nodered.org/t/my-flows-are-gone/55185)

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**Author:** [@smiedl86](https://discourse.nodered.org/u/smiedl86)\
**Replies:** 3\
**Last updated:** [14 December 2021 20:20 UTC](https://discourse.nodered.org/t/my-flows-are-gone/55185 "2021-12-14T20:20:31Z")

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After not being able to deploy my new Flow, all of my flows were gone. I still have the Backup data of my flows. What should i do now? Had anyone the same problem yet?

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## [Insert date and time SQL SERVER](https://discourse.nodered.org/t/insert-date-and-time-sql-server/55192)

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**Author:** [@mansanoj](https://discourse.nodered.org/u/mansanoj)\
**Replies:** 11\
**Last updated:** [14 December 2021 19:11 UTC](https://discourse.nodered.org/t/insert-date-and-time-sql-server/55192 "2021-12-14T19:11:41Z")

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I need to enter the current date and time via Node-RED into a SQL SERVER database, but it gives an error message. I'm using the pallete: node-red-contrib-moment I use the -3 hour time zone and then send it to a functio…

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## [Possible way to access router api?](https://discourse.nodered.org/t/possible-way-to-access-router-api/55148)

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**Author:** [@alpha815](https://discourse.nodered.org/u/alpha815)\
**Replies:** 25\
**Last updated:** [14 December 2021 17:29 UTC](https://discourse.nodered.org/t/possible-way-to-access-router-api/55148 "2021-12-14T17:29:52Z")

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Hi there, hope you guys are doing fine. I am trying to access my LTE modem from node-red, I used the HTTP request node with the basic authentication method but in return, I got an error 125002 which means wrong session …

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## [Looking for Suggestions on tracking down a deployment delay](https://discourse.nodered.org/t/looking-for-suggestions-on-tracking-down-a-deployment-delay/55135)

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**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 2\
**Last updated:** [14 December 2021 17:09 UTC](https://discourse.nodered.org/t/looking-for-suggestions-on-tracking-down-a-deployment-delay/55135 "2021-12-14T17:09:48Z")

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Sometime several months back while I was busy juggling many things, I made some alteration to my Node-RED setup that results in a long (2-5 second) pause whenever I do a deployment. I am sure if I had attacked the issue …

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## [Zwave switches fail to toggle sometimes](https://discourse.nodered.org/t/zwave-switches-fail-to-toggle-sometimes/55137)

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**Author:** [@voidpointer](https://discourse.nodered.org/u/voidpointer)\
**Replies:** 1\
**Last updated:** [14 December 2021 16:01 UTC](https://discourse.nodered.org/t/zwave-switches-fail-to-toggle-sometimes/55137 "2021-12-14T16:01:21Z")

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using Node Red, I have a series of lights and smart plugs (that have lights plugged into them) that I toggle when it's dawn or dusk. Occasionally, a light will not toggle correctly. For example, 1 of my 3 devices will be…

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## [Dynamically set required property](https://discourse.nodered.org/t/dynamically-set-required-property/55127)

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**Author:** [@danube](https://discourse.nodered.org/u/danube)\
**Replies:** 4\
**Last updated:** [14 December 2021 15:31 UTC](https://discourse.nodered.org/t/dynamically-set-required-property/55127 "2021-12-14T15:31:56Z")

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/me again, probably with another simple question. The node I'm designing has a checkbox ("autoActive") and a configuration field ("configAutomatic"). No science. defaults: { name: {}, autoActive: {}, config…

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## [Log4J vulnerability](https://discourse.nodered.org/t/log4j-vulnerability/55181)

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**Author:** [@MOW](https://discourse.nodered.org/u/MOW)\
**Replies:** 1\
**Last updated:** [14 December 2021 14:20 UTC](https://discourse.nodered.org/t/log4j-vulnerability/55181 "2021-12-14T14:20:26Z")

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Hi everybody, does anybody know, how can I find out, if the Log4J Lib is used in nodes I use or in the node-red enviroment itself? Thanks to all. MOW

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## [Searching for nodes - not seeing them all](https://discourse.nodered.org/t/searching-for-nodes-not-seeing-them-all/55172)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [14 December 2021 13:04 UTC](https://discourse.nodered.org/t/searching-for-nodes-not-seeing-them-all/55172 "2021-12-14T13:04:28Z")

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I am sorry folks. (Lots of pictures in this story) I am not having a good day with things. Ok, so the search in the menu. I want to search for a specific node by searching for it's real name. In light of something t…

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## [\`file out\` node wrong path](https://discourse.nodered.org/t/file-out-node-wrong-path/55169)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [14 December 2021 12:42 UTC](https://discourse.nodered.org/t/file-out-node-wrong-path/55169 "2021-12-14T12:42:23Z")

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I have this bit of code: \[{"id":"1eae07ed.d651f8","type":"change","z":"a1911aa3.c45be8","g":"b924568e.8a90a8","name":"path","rules":\[{"t":"set","p":"path","pt":"msg","to":"log\_paths","tot":"global"},{"t":"set","p":"file…

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## [How to duplicate flows with different device ID](https://discourse.nodered.org/t/how-to-duplicate-flows-with-different-device-id/55166)

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**Author:** [@Shiny](https://discourse.nodered.org/u/Shiny)\
**Replies:** 0\
**Last updated:** [14 December 2021 11:50 UTC](https://discourse.nodered.org/t/how-to-duplicate-flows-with-different-device-id/55166 "2021-12-14T11:50:21Z")

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I'm using /flow API to import a flow with few nodes. I'm looping this API in for loop by which I'm trying to duplicate the flow with few different parameters. But I'm always getting error as {"code":"unexpected\_error","…

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## [\[Solved\] How do you rate a node? (tldr: shut off cookie blocker)](https://discourse.nodered.org/t/solved-how-do-you-rate-a-node-tldr-shut-off-cookie-blocker/55162)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 4\
**Last updated:** [14 December 2021 10:59 UTC](https://discourse.nodered.org/t/solved-how-do-you-rate-a-node-tldr-shut-off-cookie-blocker/55162 "2021-12-14T10:59:47Z")

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Has anyone rated a node recently? I thought there was a way to click on some stars but I can't find it in the flow library anymore (I'm sure it use to be there.)

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## [Collect msg.payload of one node into one string](https://discourse.nodered.org/t/collect-msg-payload-of-one-node-into-one-string/55151)

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**Author:** [@hanine](https://discourse.nodered.org/u/hanine)\
**Replies:** 2\
**Last updated:** [14 December 2021 10:47 UTC](https://discourse.nodered.org/t/collect-msg-payload-of-one-node-into-one-string/55151 "2021-12-14T10:47:54Z")

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Hello everyone How can i collect the msg.payload of a node into one string thank you in advance

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## [Npm install node-red-contrib-moment](https://discourse.nodered.org/t/npm-install-node-red-contrib-moment/55003)

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**Author:** [@MR76](https://discourse.nodered.org/u/MR76)\
**Replies:** 9\
**Last updated:** [14 December 2021 10:46 UTC](https://discourse.nodered.org/t/npm-install-node-red-contrib-moment/55003 "2021-12-14T10:46:20Z")

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Hi, Im trying to install the moment node. But the installation failed. root@MSK-IOT2050-nodered:~/.node-red# npm install node-red-contrib-moment npm ERR! code EAI\_AGAIN npm ERR! errno EAI\_AGAIN npm ERR! request to http…

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## [Right click to navigate and Ctrl + Mouse-scroll to change zoom](https://discourse.nodered.org/t/right-click-to-navigate-and-ctrl-mouse-scroll-to-change-zoom/55156)

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**Author:** [@chribster](https://discourse.nodered.org/u/chribster)\
**Replies:** 4\
**Last updated:** [14 December 2021 09:43 UTC](https://discourse.nodered.org/t/right-click-to-navigate-and-ctrl-mouse-scroll-to-change-zoom/55156 "2021-12-14T09:43:27Z")

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To simplify navigation across large flows I would like the possibility to move the board around rather than having to use the scroll bars. For example right-click, hold and drag Also it would be a good feature to have s…

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## [\[solved\] Install script assumes I still have node v10](https://discourse.nodered.org/t/solved-install-script-assumes-i-still-have-node-v10/55134)

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**Author:** [@geieraffe](https://discourse.nodered.org/u/geieraffe)\
**Replies:** 3\
**Last updated:** [14 December 2021 09:06 UTC](https://discourse.nodered.org/t/solved-install-script-assumes-i-still-have-node-v10/55134 "2021-12-14T09:06:42Z")

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The installation script assumes that I still have an Node v10 installed/used. But in the log it says that I have a newer version. And yes, I installed nvm in desperation. And now can't get rid of it. Even with how-to …

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## [Notification Node with Input sends "OK" if input value is "1"](https://discourse.nodered.org/t/notification-node-with-input-sends-ok-if-input-value-is-1/54936)

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**Author:** [@Darwin](https://discourse.nodered.org/u/Darwin)\
**Replies:** 2\
**Last updated:** [14 December 2021 08:15 UTC](https://discourse.nodered.org/t/notification-node-with-input-sends-ok-if-input-value-is-1/54936 "2021-12-14T08:15:12Z")

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Hi there, I am currently using Nodered Dashboard 2.19.4 and I noticed a strange behaviour on the notification node when it's mode is set to "OK/Cancel Dialog with Input". The msg.payloud outcome of this node always con…

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## [Real value S7-LOGO8](https://discourse.nodered.org/t/real-value-s7-logo8/54688)

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**Author:** [@Disaile12](https://discourse.nodered.org/u/Disaile12)\
**Replies:** 3\
**Last updated:** [13 December 2021 23:39 UTC](https://discourse.nodered.org/t/real-value-s7-logo8/54688 "2021-12-13T23:39:04Z")

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Hello everyone, I am working on a project with a Siemens LOGO 8, for this I downloaded the S7-LOGO 8 node from the official node red page, where the LOGO variables are already included. The project consists of reading th…

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## [Send message to whatsapp group from node-red](https://discourse.nodered.org/t/send-message-to-whatsapp-group-from-node-red/55106)

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**Author:** [@arighidennys](https://discourse.nodered.org/u/arighidennys)\
**Replies:** 3\
**Last updated:** [13 December 2021 23:32 UTC](https://discourse.nodered.org/t/send-message-to-whatsapp-group-from-node-red/55106 "2021-12-13T23:32:14Z")

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Hay, I want to send a message to a whatsapp group, but i don't know how. I only know how to send a message to a personal number. Is there anyone can do that ? Please help

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## [Profiling flows with ClinicJs to analyze CPU performance issues](https://discourse.nodered.org/t/profiling-flows-with-clinicjs-to-analyze-cpu-performance-issues/55139)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 2\
**Last updated:** [13 December 2021 23:12 UTC](https://discourse.nodered.org/t/profiling-flows-with-clinicjs-to-analyze-cpu-performance-issues/55139 "2021-12-13T23:12:14Z")

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Hi folks, Last week I started a discussion to collect ideas whether it is possible to build a - in the future - Node-RED profiler (to find which nodes consume lots of system resources like cpu/ram). However Nick had a …

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## [UIBuilder - VueJS not reacting to modifed data](https://discourse.nodered.org/t/uibuilder-vuejs-not-reacting-to-modifed-data/54124)

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**Author:** [@TheadehAnank](https://discourse.nodered.org/u/TheadehAnank)\
**Replies:** 12\
**Last updated:** [13 December 2021 22:49 UTC](https://discourse.nodered.org/t/uibuilder-vuejs-not-reacting-to-modifed-data/54124 "2021-12-13T22:49:29Z")

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I’m building a UI using UIBuilder with Vue, Bootstrap-Vue. A weird issue has cropped up; I’m not sure if its a issue with my code, UIBuilder, Vue, Bootstrap, etc. The UI code has gotten a bit complex, so rather than pos…

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## [Command works in terminal but not in exec node](https://discourse.nodered.org/t/command-works-in-terminal-but-not-in-exec-node/55087)

<div class="topic-metadata">

**Author:** [@PdeJ](https://discourse.nodered.org/u/PdeJ)\
**Replies:** 15\
**Last updated:** [13 December 2021 22:43 UTC](https://discourse.nodered.org/t/command-works-in-terminal-but-not-in-exec-node/55087 "2021-12-13T22:43:58Z")

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The following command works fine in the console, but not in the exec node in Buster, but used to work in Stretch. ffplay Desktop/audio.mp3 \>/dev/null 2\>&1 -vn -autoexit -nodisp \[{"id":"866572cd.1cabb","type":"commen…

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## [Is there a method to use preprocessor like h file in C/C++?](https://discourse.nodered.org/t/is-there-a-method-to-use-preprocessor-like-h-file-in-c-c/54960)

<div class="topic-metadata">

**Author:** [@corso66](https://discourse.nodered.org/u/corso66)\
**Replies:** 2\
**Last updated:** [13 December 2021 21:02 UTC](https://discourse.nodered.org/t/is-there-a-method-to-use-preprocessor-like-h-file-in-c-c/54960 "2021-12-13T21:02:44Z")

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Hi ! I want to use a technic with JS like .h file in C/C++ and definitively, modify any label at a only one file or node... For exemple, if i have an array from buffer IoT named o\[\] with 100 values ; in C, i will put i…

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