# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=215

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

**Page:** 216

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## [How to implement custom context store](https://discourse.nodered.org/t/how-to-implement-custom-context-store/77994)

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**Author:** [@88bit](https://discourse.nodered.org/u/88bit)\
**Replies:** 2\
**Last updated:** [28 April 2023 08:47 UTC](https://discourse.nodered.org/t/how-to-implement-custom-context-store/77994 "2023-04-28T08:47:40Z")

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Node\_Red version 3.0.2 Hi all, I'm trying to implement a custom context store. I have read the documentation however I'm still unsure how to edit the settings.js file to create these stores, and I have the following que…

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## [Alarm if there is no node red signal](https://discourse.nodered.org/t/alarm-if-there-is-no-node-red-signal/77996)

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**Author:** [@Tomi](https://discourse.nodered.org/u/Tomi)\
**Replies:** 2\
**Last updated:** [28 April 2023 08:37 UTC](https://discourse.nodered.org/t/alarm-if-there-is-no-node-red-signal/77996 "2023-04-28T08:37:37Z")

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The PR55-61E sensor is being used I'm using Node Red If there's no signal for six minutes, the alarm goes off Can you set it up I looked up the homepage and website, but I don't know If you can solve the problem Than…

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## [Iterating an array of elements and query execution on Sql Server database](https://discourse.nodered.org/t/iterating-an-array-of-elements-and-query-execution-on-sql-server-database/76878)

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**Author:** [@Nirajan](https://discourse.nodered.org/u/Nirajan)\
**Replies:** 10\
**Last updated:** [28 April 2023 08:09 UTC](https://discourse.nodered.org/t/iterating-an-array-of-elements-and-query-execution-on-sql-server-database/76878 "2023-04-28T08:09:58Z")

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Hi, I have a 'json' object with an array that contains some objects as its element. I would like to iterate over the array, do some calculations with the values of each array element and then create a new object to rep…

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## [Uibuilder uibuilder.iife.js errors](https://discourse.nodered.org/t/uibuilder-uibuilder-iife-js-errors/77978)

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**Author:** [@nerevar](https://discourse.nodered.org/u/nerevar)\
**Replies:** 10\
**Last updated:** [27 April 2023 20:42 UTC](https://discourse.nodered.org/t/uibuilder-uibuilder-iife-js-errors/77978 "2023-04-27T20:42:02Z")

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Hi, I have some errors with the new uibuilder.. Just a word of warning, I sense this is gonna be a long thread. To get started: These are my current specs: 27 Apr 07:02:08 - \[info\] Node-RED version: v3.0.2 27 Apr 0…

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## [I can't stop NR (I can only kill process)](https://discourse.nodered.org/t/i-cant-stop-nr-i-can-only-kill-process/77853)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 23\
**Last updated:** [27 April 2023 17:54 UTC](https://discourse.nodered.org/t/i-cant-stop-nr-i-can-only-kill-process/77853 "2023-04-27T17:54:06Z")

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Hi, on OrangePi zero I run NR by command node-red, in past it exited with a control^c, now it hangs and I don't know why. The cpu keeps minumum, but the ram won't get free, I need to kill the PID. Maybe a module?

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## [IF Else statement not working](https://discourse.nodered.org/t/if-else-statement-not-working/77939)

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**Author:** [@heyhogan](https://discourse.nodered.org/u/heyhogan)\
**Replies:** 6\
**Last updated:** [27 April 2023 17:43 UTC](https://discourse.nodered.org/t/if-else-statement-not-working/77939 "2023-04-27T17:43:35Z")

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I have an inject node that I use to send is various polaritysum values, some odd, some even. The goal here is to test if the polaritysum is odd or even. I can see that the value of OddEven is either 1 or 0 as I expect…

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## [Memory Leaks in Node-RED](https://discourse.nodered.org/t/memory-leaks-in-node-red/77981)

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**Author:** [@pekoto4349](https://discourse.nodered.org/u/pekoto4349)\
**Replies:** 4\
**Last updated:** [27 April 2023 17:34 UTC](https://discourse.nodered.org/t/memory-leaks-in-node-red/77981 "2023-04-27T17:34:02Z")

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Hello everyone, Im currently in the works of an experiment in which i encounter some issues with memory. The flow/code is memory leaking somewhere and the JS heap gets full. Is there any memory profiling tool that can b…

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## [Dynamic node creation in the Node-RED editor](https://discourse.nodered.org/t/dynamic-node-creation-in-the-node-red-editor/77983)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 9\
**Last updated:** [27 April 2023 16:54 UTC](https://discourse.nodered.org/t/dynamic-node-creation-in-the-node-red-editor/77983 "2023-04-27T16:54:44Z")

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Hi there, I've read many comments pointing out that the Node-RED editor is not meant to be dynamic nor should it be doing any computation. I've gone and ignored that because I seem to have made an assumption that Node-R…

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## [Select TWO dates from a ui\_table and set payload mindate and maxdate](https://discourse.nodered.org/t/select-two-dates-from-a-ui-table-and-set-payload-mindate-and-maxdate/77972)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 2\
**Last updated:** [27 April 2023 16:25 UTC](https://discourse.nodered.org/t/select-two-dates-from-a-ui-table-and-set-payload-mindate-and-maxdate/77972 "2023-04-27T16:25:22Z")

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I have a ui\_table in a dashboard with dates populated. The requirement is to select two dates from the table by clicking it one after another from same table. But with each progressive click the function should calculate…

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## [How to pause the debug log?](https://discourse.nodered.org/t/how-to-pause-the-debug-log/77974)

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**Author:** [@Darren](https://discourse.nodered.org/u/Darren)\
**Replies:** 10\
**Last updated:** [27 April 2023 15:20 UTC](https://discourse.nodered.org/t/how-to-pause-the-debug-log/77974 "2023-04-27T15:20:37Z")

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While debugging, I have a large array being processed that pumps a lot of messages into the debug log. How can I pause the debug log so that I can read what's currently there? Currently, it scrolls for 10s, pauses for 3s…

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## [Saving time in MySQLWorkbench](https://discourse.nodered.org/t/saving-time-in-mysqlworkbench/77923)

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**Author:** [@Erissin\_Industria4.0](https://discourse.nodered.org/u/Erissin_Industria4.0)\
**Replies:** 5\
**Last updated:** [27 April 2023 12:52 UTC](https://discourse.nodered.org/t/saving-time-in-mysqlworkbench/77923 "2023-04-27T12:52:08Z")

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I want to add the current time in a database, as soon as I press a button on the dashboard, but I do not know how to get the value of the current time or how to add in MySqlWorkBench

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## [Open Node Red Editor for specific flow](https://discourse.nodered.org/t/open-node-red-editor-for-specific-flow/77950)

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**Author:** [@arminder.lubana](https://discourse.nodered.org/u/arminder.lubana)\
**Replies:** 4\
**Last updated:** [27 April 2023 12:16 UTC](https://discourse.nodered.org/t/open-node-red-editor-for-specific-flow/77950 "2023-04-27T12:16:12Z")

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Hi, Suppose i have two users account in Node Red. is it possible to show only flows to use after login who he has created?

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## [Persian-date library](https://discourse.nodered.org/t/persian-date-library/77975)

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**Author:** [@sahar](https://discourse.nodered.org/u/sahar)\
**Replies:** 2\
**Last updated:** [27 April 2023 09:40 UTC](https://discourse.nodered.org/t/persian-date-library/77975 "2023-04-27T09:40:51Z")

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hi , i need to design a calendar in Persian to schedule by our origin calendar , but functions cant resolve it at first I've installed library (npm install persian-date) after that in node red by function node i trie…

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## [PR55-61E If you have any questions about setting the alarm](https://discourse.nodered.org/t/pr55-61e-if-you-have-any-questions-about-setting-the-alarm/77973)

<div class="topic-metadata">

**Author:** [@Tomi](https://discourse.nodered.org/u/Tomi)\
**Replies:** 0\
**Last updated:** [27 April 2023 08:29 UTC](https://discourse.nodered.org/t/pr55-61e-if-you-have-any-questions-about-setting-the-alarm/77973 "2023-04-27T08:29:44Z")

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I’m using the PR55-61E sensor I’m using Node Red If the setting value of the motor goes up above the temperature I want to give you an alarm warning signal, so I hope you find a way to solve it. Even if you refer to t…

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## [API call with gzip encoding](https://discourse.nodered.org/t/api-call-with-gzip-encoding/77971)

<div class="topic-metadata">

**Author:** [@leftymuller](https://discourse.nodered.org/u/leftymuller)\
**Replies:** 4\
**Last updated:** [27 April 2023 06:37 UTC](https://discourse.nodered.org/t/api-call-with-gzip-encoding/77971 "2023-04-27T06:37:59Z")

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Hello! Ive asked ChatGPT to help me but it didnt give a viable solution Ive done API calls before without any issues but this API service has gzip encoding I have put an "Accept-encoding" into the http request. Howev…

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## [Flexdash - transparent widget background](https://discourse.nodered.org/t/flexdash-transparent-widget-background/77929)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 2\
**Last updated:** [26 April 2023 19:12 UTC](https://discourse.nodered.org/t/flexdash-transparent-widget-background/77929 "2023-04-26T19:12:19Z")

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Is it possible to make the background transparent for selected widgets? So something like this could be built. Grafana Flexdash

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## [Client node error OPC UA](https://discourse.nodered.org/t/client-node-error-opc-ua/77239)

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**Author:** [@marc7600](https://discourse.nodered.org/u/marc7600)\
**Replies:** 1\
**Last updated:** [26 April 2023 19:04 UTC](https://discourse.nodered.org/t/client-node-error-opc-ua/77239 "2023-04-26T19:04:26Z")

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Hello, i'm using node-red with the contrib-opcua module. sometimes my node says the following error: e\[31mClient node error on: error: \["Cannot create client, check connection options: \[{\\"securityPolicy\\":\\"1\\",\\"sec…

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## [OPC UA NODE RED ERROR Message](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775)

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**Author:** [@MaxDP](https://discourse.nodered.org/u/MaxDP)\
**Replies:** 2\
**Last updated:** [26 April 2023 19:02 UTC](https://discourse.nodered.org/t/opc-ua-node-red-error-message/77775 "2023-04-26T19:02:18Z")

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Hello I am trying for a school project to creat a dashboard via Node red which gets his data from a opc ua client and the client gets it from a server. The problem is when i am connected to the other pc where the server …

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## [HTTP request with specific request headers/payloads](https://discourse.nodered.org/t/http-request-with-specific-request-headers-payloads/77961)

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**Author:** [@EL\_tech](https://discourse.nodered.org/u/EL_tech)\
**Replies:** 2\
**Last updated:** [26 April 2023 18:43 UTC](https://discourse.nodered.org/t/http-request-with-specific-request-headers-payloads/77961 "2023-04-26T18:43:00Z")

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Hello, I would like to show the the current petrol prices to my dashboard. For the data reference I use this link. He explains how can I configure a http request. For Example: Url: https://carburanti.mise.gov.it/os…

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## [Cannot install node max31865 from repository](https://discourse.nodered.org/t/cannot-install-node-max31865-from-repository/77959)

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**Author:** [@devifast](https://discourse.nodered.org/u/devifast)\
**Replies:** 9\
**Last updated:** [26 April 2023 16:58 UTC](https://discourse.nodered.org/t/cannot-install-node-max31865-from-repository/77959 "2023-04-26T16:58:21Z")

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Hello. Unable to install node node-red-contrib-pi-max31865 0.9.4 from repository. Any ideas? With node version 19 everyting is ok, but now i have version 20. Here is the log file. Thanks. ----------------------------…

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## [Rs485 serialport plug in](https://discourse.nodered.org/t/rs485-serialport-plug-in/14388)

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**Author:** [@Iliyas](https://discourse.nodered.org/u/Iliyas)\
**Replies:** 19\
**Last updated:** [26 April 2023 15:51 UTC](https://discourse.nodered.org/t/rs485-serialport-plug-in/14388 "2023-04-26T15:51:59Z")

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Hello Myself Iliyas, I have been getting issue on installing rs485 serial port plugin please help as soon as possible

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## [Unable to connect to OPC UA Server](https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955)

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**Author:** [@SinizowN](https://discourse.nodered.org/u/SinizowN)\
**Replies:** 1\
**Last updated:** [26 April 2023 15:49 UTC](https://discourse.nodered.org/t/unable-to-connect-to-opc-ua-server/77955 "2023-04-26T15:49:39Z")

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Hello everyone, I am trying to connect to an OPC UA server present on another server. I manage to connect to this server with software such as UAExpert or Matrikon. But when I try from node-red, unable to connect. I g…

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## [How to send notifications to local Synology Chat server via http/webhook](https://discourse.nodered.org/t/how-to-send-notifications-to-local-synology-chat-server-via-http-webhook/77917)

<div class="topic-metadata">

**Author:** [@kolia](https://discourse.nodered.org/u/kolia)\
**Replies:** 3\
**Last updated:** [26 April 2023 13:22 UTC](https://discourse.nodered.org/t/how-to-send-notifications-to-local-synology-chat-server-via-http-webhook/77917 "2023-04-26T13:22:59Z")

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I would like to send status notifications from Node Red to my local Synology chat server. Had already the http request from my Synology Chat, but I can't manage to send a message from a flow about it. What nodes do I ne…

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## [Get data from node-red-node-ui-table](https://discourse.nodered.org/t/get-data-from-node-red-node-ui-table/77690)

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**Author:** [@AutomationTeam-ATeam](https://discourse.nodered.org/u/AutomationTeam-ATeam)\
**Replies:** 1\
**Last updated:** [26 April 2023 12:48 UTC](https://discourse.nodered.org/t/get-data-from-node-red-node-ui-table/77690 "2023-04-26T12:48:48Z")

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Hi all For my project I would need to get the data present in a table of the ui-table node. Reading the tabulator documentation I found the getData command which seems to do just for me. Unfortunately at the moment I'…

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## [Setting HTTPS in Docker Compose](https://discourse.nodered.org/t/setting-https-in-docker-compose/77933)

<div class="topic-metadata">

**Author:** [@oliver.es](https://discourse.nodered.org/u/oliver.es)\
**Replies:** 3\
**Last updated:** [26 April 2023 11:47 UTC](https://discourse.nodered.org/t/setting-https-in-docker-compose/77933 "2023-04-26T11:47:42Z")

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Hello, trying to run Node RED in Docker via Docker Compose yaml file. I need to load with HTTPS enabled and path to certificate files. This is example of Docker Compose file. node-red: image: nodered/node-red:lat…

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## [How to tell the difference between \\n in a string and a newline?](https://discourse.nodered.org/t/how-to-tell-the-difference-between-n-in-a-string-and-a-newline/77922)

<div class="topic-metadata">

**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\
**Replies:** 16\
**Last updated:** [26 April 2023 10:41 UTC](https://discourse.nodered.org/t/how-to-tell-the-difference-between-n-in-a-string-and-a-newline/77922 "2023-04-26T10:41:35Z")

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Hi, I have to separate a character string line by line (to process them individually afterwards): /\* \* My name \*/ #include \<asf.h\> #include "language.h" //defaut static const char lg\_clic1sec\_cancel\_fr\[\] = {"Clic 1sec…

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## [How to show only one flows](https://discourse.nodered.org/t/how-to-show-only-one-flows/77944)

<div class="topic-metadata">

**Author:** [@1260215278](https://discourse.nodered.org/u/1260215278)\
**Replies:** 4\
**Last updated:** [26 April 2023 08:03 UTC](https://discourse.nodered.org/t/how-to-show-only-one-flows/77944 "2023-04-26T08:03:16Z")

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I run node-red in express, how to make it show only one flows on the ui. Thanks

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## [HPE\_CR\_EXPECTED How do I fix this?](https://discourse.nodered.org/t/hpe-cr-expected-how-do-i-fix-this/77530)

<div class="topic-metadata">

**Author:** [@Sellery](https://discourse.nodered.org/u/Sellery)\
**Replies:** 2\
**Last updated:** [26 April 2023 05:39 UTC](https://discourse.nodered.org/t/hpe-cr-expected-how-do-i-fix-this/77530 "2023-04-26T05:39:23Z")

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Hello, I'm a Newbie :sweat\_smile: (obv) So I want to get something from a website but everytime when I try I get this error 'HPE\_CR\_EXPECTED' What does it mean and how do I fix it? I added things like %0D || \\r || %AD t…

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## [How update Node-Red nodes?](https://discourse.nodered.org/t/how-update-node-red-nodes/77932)

<div class="topic-metadata">

**Author:** [@iiot2k](https://discourse.nodered.org/u/iiot2k)\
**Replies:** 1\
**Last updated:** [25 April 2023 21:23 UTC](https://discourse.nodered.org/t/how-update-node-red-nodes/77932 "2023-04-25T21:23:27Z")

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A simple question. When I update nodes in Node-Red (e.g. Palette manager), are the new files merged with old files or old files are deleted first and then new files are copied ? What action is made, if the old file is…

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## [Help on adapting module to receive from any IR remote](https://discourse.nodered.org/t/help-on-adapting-module-to-receive-from-any-ir-remote/77836)

<div class="topic-metadata">

**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 5\
**Last updated:** [25 April 2023 16:57 UTC](https://discourse.nodered.org/t/help-on-adapting-module-to-receive-from-any-ir-remote/77836 "2023-04-25T16:57:38Z")

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Hi, I was able to activate and receive on NR the remote commands on my Orange zero, to do that I'm using node-red-contrib-ir which unfortunately filter the data packet and returns me always "4", I need to edit the scrip…

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