# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=245

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

**Page:** 246

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## [Using async function for managing http authentication](https://discourse.nodered.org/t/using-async-function-for-managing-http-authentication/75404)

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**Author:** [@lizzardguki](https://discourse.nodered.org/u/lizzardguki)\
**Replies:** 2\
**Last updated:** [18 February 2023 22:11 UTC](https://discourse.nodered.org/t/using-async-function-for-managing-http-authentication/75404 "2023-02-18T22:11:29Z")

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A strange idea came to mind today. I am heavily using bitwarden for my personal info, and i am running several node-red instances where they share same username and password combination for accessing the editor. Could i…

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## [Help installing .deb file on windows(10) laptop](https://discourse.nodered.org/t/help-installing-deb-file-on-windows-10-laptop/75396)

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**Author:** [@damica51](https://discourse.nodered.org/u/damica51)\
**Replies:** 6\
**Last updated:** [18 February 2023 21:53 UTC](https://discourse.nodered.org/t/help-installing-deb-file-on-windows-10-laptop/75396 "2023-02-18T21:53:26Z")

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I have node red installed on my laptop and I use Powershell to start my node-red. I also installed "Scoop" because of trying to use the "sudo" command. But I can't figure out what about this error , I'm trying to insta…

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## [Msg.reset causes delay node to not delay the next message after the reset](https://discourse.nodered.org/t/msg-reset-causes-delay-node-to-not-delay-the-next-message-after-the-reset/75395)

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**Author:** [@auch\_enne](https://discourse.nodered.org/u/auch_enne)\
**Replies:** 2\
**Last updated:** [18 February 2023 19:55 UTC](https://discourse.nodered.org/t/msg-reset-causes-delay-node-to-not-delay-the-next-message-after-the-reset/75395 "2023-02-18T19:55:18Z")

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Hello, Using the delay node with a fixed amount of time. If the node is delaying a message and I send it a msg.reset the delayed message is 'deleted' like it should be. But when I sent a new message to the delay node a…

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## [Philips Hue Button](https://discourse.nodered.org/t/philips-hue-button/75085)

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**Author:** [@ChrisF](https://discourse.nodered.org/u/ChrisF)\
**Replies:** 25\
**Last updated:** [18 February 2023 14:03 UTC](https://discourse.nodered.org/t/philips-hue-button/75085 "2023-02-18T14:03:56Z")

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Hello all, I have a Philips hue button that I have integrated into Node Red and I want to convert the dimming values into a number. With a debug node I get the following values: object topic: "zigbee2mqtt/Hue Button E…

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## [Try to convert msg.payload string of number into ascii](https://discourse.nodered.org/t/try-to-convert-msg-payload-string-of-number-into-ascii/75193)

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**Author:** [@PhilLu](https://discourse.nodered.org/u/PhilLu)\
**Replies:** 13\
**Last updated:** [18 February 2023 12:51 UTC](https://discourse.nodered.org/t/try-to-convert-msg-payload-string-of-number-into-ascii/75193 "2023-02-18T12:51:29Z")

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Hello, I have to translate a string of delimited numbers into ascii string. This is working fine: String.fromCharCode(65,66,67); // returns 'ABC' ... I have a msg.payload containing by example: 45,42,45,42,45,42,45,…

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## [Uibuilder documentation suggestions and improvements](https://discourse.nodered.org/t/uibuilder-documentation-suggestions-and-improvements/74812)

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**Author:** [@ianh33](https://discourse.nodered.org/u/ianh33)\
**Replies:** 38\
**Last updated:** [18 February 2023 00:46 UTC](https://discourse.nodered.org/t/uibuilder-documentation-suggestions-and-improvements/74812 "2023-02-18T00:46:38Z")

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Julian This is going to be a silly question (appologies in advance - and thank you for your time) ......... When I add libraries through the libraries tab of 'edit uibuilder node' none of them are downloaded into /uibu…

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## [How to spot a static change properly? (noob question)](https://discourse.nodered.org/t/how-to-spot-a-static-change-properly-noob-question/75313)

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**Author:** [@AndKe](https://discourse.nodered.org/u/AndKe)\
**Replies:** 4\
**Last updated:** [17 February 2023 23:08 UTC](https://discourse.nodered.org/t/how-to-spot-a-static-change-properly-noob-question/75313 "2023-02-17T23:08:54Z")

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for a number of Zigbee devices, I check if the device is offline, if offline - send a notification. My method today is: The "problem" is that I really would like the logic to be for each device: if (offline\_time…

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## [Optimization of tabs vs flows for performance](https://discourse.nodered.org/t/optimization-of-tabs-vs-flows-for-performance/75363)

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**Author:** [@RayMN](https://discourse.nodered.org/u/RayMN)\
**Replies:** 5\
**Last updated:** [17 February 2023 19:04 UTC](https://discourse.nodered.org/t/optimization-of-tabs-vs-flows-for-performance/75363 "2023-02-17T19:04:31Z")

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From a performance perspective: Is there a difference between having fewer tabs with lots flows in them vs lots of tabs with only a few flows in each. From a "usage" I would prefer the latter of course, I currently hav…

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## [Convert incoming FHIR XML message to HL7](https://discourse.nodered.org/t/convert-incoming-fhir-xml-message-to-hl7/75360)

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**Author:** [@TimD](https://discourse.nodered.org/u/TimD)\
**Replies:** 2\
**Last updated:** [17 February 2023 18:16 UTC](https://discourse.nodered.org/t/convert-incoming-fhir-xml-message-to-hl7/75360 "2023-02-17T18:16:27Z")

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Hi All, My first post. I apologise in advance if below is a little long winded.... I'm relatively new to Node-Red but am "lucky" enough to have taken over responsibility for our N-R engine at work, which in a nutshell …

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## [Domoticz/out to node red, delete parts of msg.payload](https://discourse.nodered.org/t/domoticz-out-to-node-red-delete-parts-of-msg-payload/75297)

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**Author:** [@pgas37](https://discourse.nodered.org/u/pgas37)\
**Replies:** 16\
**Last updated:** [17 February 2023 16:41 UTC](https://discourse.nodered.org/t/domoticz-out-to-node-red-delete-parts-of-msg-payload/75297 "2023-02-17T16:41:23Z")

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I found on the forum several topics with similar content. Alse visited page about messages,but i cannot get the correct output. I am new so if anyone can help? the output is like this: Topic: domoticz/outQoS: 0 { "Ba…

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## [OPCUA-client Write to int32ARRAY PLC Value](https://discourse.nodered.org/t/opcua-client-write-to-int32array-plc-value/75344)

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**Author:** [@andzana](https://discourse.nodered.org/u/andzana)\
**Replies:** 0\
**Last updated:** [17 February 2023 12:11 UTC](https://discourse.nodered.org/t/opcua-client-write-to-int32array-plc-value/75344 "2023-02-17T12:11:24Z")

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Hi guys, i've problem with OpcUa write, in the PLC the data is int32Array\[201\], with the OpcUa-Cliet READ i've add a payload.range and the result is OK, read only 3° value of the PLC int32Array \[ { "id": …

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## [RTU modbus server](https://discourse.nodered.org/t/rtu-modbus-server/75348)

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**Author:** [@173](https://discourse.nodered.org/u/173)\
**Replies:** 0\
**Last updated:** [17 February 2023 13:21 UTC](https://discourse.nodered.org/t/rtu-modbus-server/75348 "2023-02-17T13:21:00Z")

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Hi All, I have two node red systems connected by a serial port. In one of them, I have a modbus flex getter module reading by the serial port. In the other, I have a TCP modbus flex server, accesed from a TCP modbus f…

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## [S0 Impulse erzeugen](https://discourse.nodered.org/t/s0-impulse-erzeugen/75346)

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**Author:** [@mmoooo](https://discourse.nodered.org/u/mmoooo)\
**Replies:** 0\
**Last updated:** [17 February 2023 12:34 UTC](https://discourse.nodered.org/t/s0-impulse-erzeugen/75346 "2023-02-17T12:34:36Z")

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Hallo, Ich habe eine Wärmepumpe die einen Eingang für S0-Impulse zur genauen Eigenverbrauchsteuerung hat. Mein Smartmeter gibt aber alles mögliche nur über Modbus aus. Ich würde nun gern mit einem Raspi und NodeRed ei…

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## [Any way to trigger a flow based on MacOS Notification?](https://discourse.nodered.org/t/any-way-to-trigger-a-flow-based-on-macos-notification/75312)

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**Author:** [@aperture1988](https://discourse.nodered.org/u/aperture1988)\
**Replies:** 7\
**Last updated:** [17 February 2023 12:07 UTC](https://discourse.nodered.org/t/any-way-to-trigger-a-flow-based-on-macos-notification/75312 "2023-02-17T12:07:27Z")

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Hello Guys, Im looking for a way to trigger a Node-Red flow when a specific notification is triggered on a remote Apple Mac via the native MacOS notification platform. I can't figure out how best to do this, this Mac i…

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## [8 Player Texas Hold Em - How do i pull the data to each .html](https://discourse.nodered.org/t/8-player-texas-hold-em-how-do-i-pull-the-data-to-each-html/75269)

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**Author:** [@fulldad](https://discourse.nodered.org/u/fulldad)\
**Replies:** 7\
**Last updated:** [17 February 2023 11:52 UTC](https://discourse.nodered.org/t/8-player-texas-hold-em-how-do-i-pull-the-data-to-each-html/75269 "2023-02-17T11:52:30Z")

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I want to have 9 different HTML logins. 1 for the community cards to be displayed and then 8 other people who login to /player1 /player2 /player3 etc. I am only using the example and I am running into a road bloc…

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## [\[Feature Request\]Do nodes or lines know if they are above/below each other?](https://discourse.nodered.org/t/feature-request-do-nodes-or-lines-know-if-they-are-above-below-each-other/75300)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [17 February 2023 11:36 UTC](https://discourse.nodered.org/t/feature-request-do-nodes-or-lines-know-if-they-are-above-below-each-other/75300 "2023-02-17T11:36:58Z")

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if so, I wonder if the lines could switch to being "narrower"?

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## [Organizing and preparing data for InfluxDB](https://discourse.nodered.org/t/organizing-and-preparing-data-for-influxdb/75070)

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**Author:** [@bobha43](https://discourse.nodered.org/u/bobha43)\
**Replies:** 15\
**Last updated:** [17 February 2023 10:51 UTC](https://discourse.nodered.org/t/organizing-and-preparing-data-for-influxdb/75070 "2023-02-17T10:51:15Z")

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I have what must be just about the most basic and common IOT objective and it is almost embarassing to have to ask for help, but I am new to this. I have been reading a lot, but have not found answers to my problem. I w…

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## [Trigger node - unexpected behaviour with "then send" "the original msg object"](https://discourse.nodered.org/t/trigger-node-unexpected-behaviour-with-then-send-the-original-msg-object/75296)

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**Author:** [@FlangeMonkey](https://discourse.nodered.org/u/FlangeMonkey)\
**Replies:** 8\
**Last updated:** [17 February 2023 01:21 UTC](https://discourse.nodered.org/t/trigger-node-unexpected-behaviour-with-then-send-the-original-msg-object/75296 "2023-02-17T01:21:58Z")

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Hello, Using this simple example, I have data being overwritten of "the original msg object" with a second message, for data outside of payload. This is unexpected because it states "the original msg object", but it ap…

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## [Need Help on connecting OMRON PLC CP1E with Node-Red](https://discourse.nodered.org/t/need-help-on-connecting-omron-plc-cp1e-with-node-red/4041)

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**Author:** [@F-on](https://discourse.nodered.org/u/F-on)\
**Replies:** 29\
**Last updated:** [17 February 2023 00:43 UTC](https://discourse.nodered.org/t/need-help-on-connecting-omron-plc-cp1e-with-node-red/4041 "2023-02-17T00:43:37Z")

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Hello, Im a lecturer that have an old OMRON PLC (CP1E).I would like to connect it with Node-Red for my improvement project on my college.But unfortunately,my plc dont have an ethernet port.So my question is,can i connec…

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## [Node-RED errors after update](https://discourse.nodered.org/t/node-red-errors-after-update/75308)

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**Author:** [@eboston](https://discourse.nodered.org/u/eboston)\
**Replies:** 5\
**Last updated:** [16 February 2023 20:30 UTC](https://discourse.nodered.org/t/node-red-errors-after-update/75308 "2023-02-16T20:30:48Z")

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I am running Node-RED in docker on Unraid. After an update, I can't get Node-RED to work right. The WebUI won't come up and I get some errors in the log file. I'm not sure what to do at this point. Welcome to Node-RE…

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## [Calculating with flow variables in function node](https://discourse.nodered.org/t/calculating-with-flow-variables-in-function-node/75036)

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**Author:** [@kmmmm](https://discourse.nodered.org/u/kmmmm)\
**Replies:** 5\
**Last updated:** [16 February 2023 18:52 UTC](https://discourse.nodered.org/t/calculating-with-flow-variables-in-function-node/75036 "2023-02-16T18:52:18Z")

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strong textHi, wanna request help as a beginner. couldn’t \`t find a solution for the topic anywhere by my self. Issue: get two values from dashboard number node (store them in two flow variables as “t” & “n” ) and one…

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## [MQTT in node: subscription to array of topics with MQTT wildcards](https://discourse.nodered.org/t/mqtt-in-node-subscription-to-array-of-topics-with-mqtt-wildcards/75304)

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**Author:** [@greengolfer](https://discourse.nodered.org/u/greengolfer)\
**Replies:** 6\
**Last updated:** [16 February 2023 17:52 UTC](https://discourse.nodered.org/t/mqtt-in-node-subscription-to-array-of-topics-with-mqtt-wildcards/75304 "2023-02-16T17:52:20Z")

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Hello, According to the documentation of the MQTT in node, the subscription can be an array of strings. So something like \[ "abcd/#" , "defg/#" \] as a subscription should be valid. However if any topic include an MQTT…

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## [Remote acess to node-red instance](https://discourse.nodered.org/t/remote-acess-to-node-red-instance/75260)

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**Author:** [@calixtoemilio](https://discourse.nodered.org/u/calixtoemilio)\
**Replies:** 9\
**Last updated:** [16 February 2023 17:33 UTC](https://discourse.nodered.org/t/remote-acess-to-node-red-instance/75260 "2023-02-16T17:33:47Z")

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Is it possible remotely access a node-red instance? Sort of accessing internal variables (context stores), specially if running in docker containers with no shared file-system.

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## [Missing DNS caching in Node-RED (or NodeJS?)](https://discourse.nodered.org/t/missing-dns-caching-in-node-red-or-nodejs/75245)

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**Author:** [@jokakilla](https://discourse.nodered.org/u/jokakilla)\
**Replies:** 14\
**Last updated:** [16 February 2023 16:34 UTC](https://discourse.nodered.org/t/missing-dns-caching-in-node-red-or-nodejs/75245 "2023-02-16T16:34:58Z")

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Hi fellows, I'm using Node-RED for some years now and I couldn't be happier with it. But today I stumbled over the statistics of DNS requests from Node-RED in Pi-hole. There are tons of DNS queries. It seems like there…

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## [Insert values from http request into SQLite](https://discourse.nodered.org/t/insert-values-from-http-request-into-sqlite/75256)

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**Author:** [@pakarada](https://discourse.nodered.org/u/pakarada)\
**Replies:** 8\
**Last updated:** [16 February 2023 15:44 UTC](https://discourse.nodered.org/t/insert-values-from-http-request-into-sqlite/75256 "2023-02-16T15:44:32Z")

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In my flow I have two http-request nodes that I use (every ten minutes) to get data from an API. I filter the request data through five functions and I end up with five values: temperature humidity pressure PM10 PM2.5 …

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## [Problem with exec node output in Spawn mode](https://discourse.nodered.org/t/problem-with-exec-node-output-in-spawn-mode/74902)

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**Author:** [@batigolle](https://discourse.nodered.org/u/batigolle)\
**Replies:** 24\
**Last updated:** [16 February 2023 15:23 UTC](https://discourse.nodered.org/t/problem-with-exec-node-output-in-spawn-mode/74902 "2023-02-16T15:23:39Z")

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I'm using the BIGEXEC node, which runs the command: sudo ./rf95\_server , but I'm not seeing any output When I run the command in a raspberry terminal, it displays some messages on the screen every few seconds An exampl…

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## [Node Red Crashed On Me](https://discourse.nodered.org/t/node-red-crashed-on-me/75182)

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**Author:** [@Kimber](https://discourse.nodered.org/u/Kimber)\
**Replies:** 17\
**Last updated:** [16 February 2023 13:40 UTC](https://discourse.nodered.org/t/node-red-crashed-on-me/75182 "2023-02-16T13:40:58Z")

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Hey Folks. I'm just learning how to use Node Red. I installed the Nodes for InfluDB2. I tried to configure a InfluxDB2 Write and send one simple REAL tag to it. It allowed me to deploy it, then I lost connection to No…

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## [Reading Modbus and Writing to Database](https://discourse.nodered.org/t/reading-modbus-and-writing-to-database/75284)

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**Author:** [@Seymi](https://discourse.nodered.org/u/Seymi)\
**Replies:** 7\
**Last updated:** [16 February 2023 13:23 UTC](https://discourse.nodered.org/t/reading-modbus-and-writing-to-database/75284 "2023-02-16T13:23:44Z")

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I am getting the data in this format but I can't write this data format to a database. I must split these datas for writing to database as 1 or 0 format. Which function code should i use to format data and write it to da…

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## [Reusing the part of the code (or even the node) in many places - or is there any easier way to repeat similar tasks?](https://discourse.nodered.org/t/reusing-the-part-of-the-code-or-even-the-node-in-many-places-or-is-there-any-easier-way-to-repeat-similar-tasks/75160)

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**Author:** [@homonto](https://discourse.nodered.org/u/homonto)\
**Replies:** 36\
**Last updated:** [16 February 2023 12:15 UTC](https://discourse.nodered.org/t/reusing-the-part-of-the-code-or-even-the-node-in-many-places-or-is-there-any-easier-way-to-repeat-similar-tasks/75160 "2023-02-16T12:15:51Z")

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Hi, So I heavily use NR for interaction with my IoT devices (of course). In the particular case below I am controlling the sleeping device that uses ESPnow to talk to non-sleeping device (gateway) and then data goes to…

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## [How to Group flows](https://discourse.nodered.org/t/how-to-group-flows/74972)

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**Author:** [@bjdaijun](https://discourse.nodered.org/u/bjdaijun)\
**Replies:** 5\
**Last updated:** [16 February 2023 09:33 UTC](https://discourse.nodered.org/t/how-to-group-flows/74972 "2023-02-16T09:33:09Z")

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I have so much flows and they would make the tab seems very messy。 So， If there is a method to mange flows by group？

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