# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=66

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

**Page:** 67

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## [Node red core Inject node remove seconds option from dropdown using configurations](https://discourse.nodered.org/t/node-red-core-inject-node-remove-seconds-option-from-dropdown-using-configurations/93822)

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**Author:** [@navichawla92](https://discourse.nodered.org/u/navichawla92)\
**Replies:** 14\
**Last updated:** [10 December 2024 16:15 UTC](https://discourse.nodered.org/t/node-red-core-inject-node-remove-seconds-option-from-dropdown-using-configurations/93822 "2024-12-10T16:15:01Z")

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Node-RED version: v3.1.9 Mode Version: v18.20.4 I am currently working with Node-RED and facing an issue with the Inject node. When a user sets the "repeat" option to loop every second, it can lead to potential perform…

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## [Sending response back to the right serial port](https://discourse.nodered.org/t/sending-response-back-to-the-right-serial-port/93821)

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**Author:** [@grawsom](https://discourse.nodered.org/u/grawsom)\
**Replies:** 3\
**Last updated:** [10 December 2024 12:51 UTC](https://discourse.nodered.org/t/sending-response-back-to-the-right-serial-port/93821 "2024-12-10T12:51:46Z")

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I have a solution with 2 serial inputs and 1 serial output, where a response is received on the output for a received message. If data comes from both inputs, how can I ensure that I send a response back to the input it…

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## [Writing modbus to EV charger](https://discourse.nodered.org/t/writing-modbus-to-ev-charger/92123)

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**Author:** [@maciejbilu](https://discourse.nodered.org/u/maciejbilu)\
**Replies:** 9\
**Last updated:** [10 December 2024 06:23 UTC](https://discourse.nodered.org/t/writing-modbus-to-ev-charger/92123 "2024-12-10T06:23:47Z")

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Hi there! I have started my experience with Node Red few weeks ago. The goal is to manage the power flow between PV (via SOFAR 20 KTL), energy storage, EV charger, and the heat pomp. I had to start with SOFAR and the E…

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## [Help in function node - for each - flow context (moving a msg.payload to flow.context in a function node)](https://discourse.nodered.org/t/help-in-function-node-for-each-flow-context-moving-a-msg-payload-to-flow-context-in-a-function-node/93790)

<div class="topic-metadata">

**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 5\
**Last updated:** [9 December 2024 17:45 UTC](https://discourse.nodered.org/t/help-in-function-node-for-each-flow-context-moving-a-msg-payload-to-flow-context-in-a-function-node/93790 "2024-12-09T17:45:06Z")

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I am trying to set an array into flow context but unable to write the appropriate code. please help. I get only null. i dont know whcih part of the code in function node is incorrect. const data = Array.isArray(msg.pay…

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## [Starting shairport-sync with exec-node](https://discourse.nodered.org/t/starting-shairport-sync-with-exec-node/93671)

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**Author:** [@WP-Rue](https://discourse.nodered.org/u/WP-Rue)\
**Replies:** 1\
**Last updated:** [9 December 2024 17:32 UTC](https://discourse.nodered.org/t/starting-shairport-sync-with-exec-node/93671 "2024-12-09T17:32:38Z")

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Maybe someone can help or explain: I install shairport-sync on a Raspi 5 with Rasbian OS Bookworm. In a terminal from GUI of the Pi5 I can start the shairport-sync program: playing with new audio-system pipe wire on usb…

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## [Odd MQTT connect behavior. Maybe AEDES broker node, maybe not](https://discourse.nodered.org/t/odd-mqtt-connect-behavior-maybe-aedes-broker-node-maybe-not/93771)

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**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\
**Replies:** 3\
**Last updated:** [9 December 2024 16:04 UTC](https://discourse.nodered.org/t/odd-mqtt-connect-behavior-maybe-aedes-broker-node-maybe-not/93771 "2024-12-09T16:04:21Z")

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I am using project management. I maintain the project on one computer, push it to github, and then pull it down to another computer. I am using Aedes broker node and it is installed on both computers. I can create a MQ…

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## [Need help: JSON to Influx](https://discourse.nodered.org/t/need-help-json-to-influx/93802)

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**Author:** [@VolkerK62](https://discourse.nodered.org/u/VolkerK62)\
**Replies:** 5\
**Last updated:** [9 December 2024 16:03 UTC](https://discourse.nodered.org/t/need-help-json-to-influx/93802 "2024-12-09T16:03:26Z")

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Hi, I love Node Red, because I am not able to programm my own code :wink: I want to see my solar forecast in grafana (via influx). I get the data JSON from solarprognose.de, but the influx node rejects it. "unable to …

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## [Hay guys need your help again](https://discourse.nodered.org/t/hay-guys-need-your-help-again/93797)

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**Author:** [@aredhone](https://discourse.nodered.org/u/aredhone)\
**Replies:** 0\
**Last updated:** [9 December 2024 09:34 UTC](https://discourse.nodered.org/t/hay-guys-need-your-help-again/93797 "2024-12-09T09:34:32Z")

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i want a note to parse through a message to my alexa i got this , but i keep getting syntax error or json error what am i doing wrong \[{"id":"fc62a7e46bb6cb64","type":"group","z":"974e85ac2d994845","g":"f07456f5dde6d97a…

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## [Node-RED: Where is the Socket Generation Code Located? Need Help Managing Dashboard Connections](https://discourse.nodered.org/t/node-red-where-is-the-socket-generation-code-located-need-help-managing-dashboard-connections/93795)

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**Author:** [@DhamodharanGopal](https://discourse.nodered.org/u/DhamodharanGopal)\
**Replies:** 4\
**Last updated:** [9 December 2024 12:21 UTC](https://discourse.nodered.org/t/node-red-where-is-the-socket-generation-code-located-need-help-managing-dashboard-connections/93795 "2024-12-09T12:21:12Z")

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Hi everyone, I'm currently working on modifying the ui\_base.js file onConnection method to manage socket connections for the Node-RED Dashboard. Specifically, I want to achieve the following: On api/login: Allow the cr…

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## [How to trigger a dropdown for topologies without using the Inject node in Node-RED?](https://discourse.nodered.org/t/how-to-trigger-a-dropdown-for-topologies-without-using-the-inject-node-in-node-red/93726)

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**Author:** [@Nandhini-Subramaniya](https://discourse.nodered.org/u/Nandhini-Subramaniya)\
**Replies:** 9\
**Last updated:** [9 December 2024 09:37 UTC](https://discourse.nodered.org/t/how-to-trigger-a-dropdown-for-topologies-without-using-the-inject-node-in-node-red/93726 "2024-12-09T09:37:12Z")

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I have the following flow in Node-RED that dynamically loads topologies into a dropdown list: The flow starts with an Inject node that triggers a function to retrieve the topologies from the global context and display t…

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## [NPM Maintenance Window Notice](https://discourse.nodered.org/t/npm-maintenance-window-notice/93783)

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**Author:** [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Replies:** 1\
**Last updated:** [8 December 2024 18:54 UTC](https://discourse.nodered.org/t/npm-maintenance-window-notice/93783 "2024-12-08T18:54:42Z")

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Notice If anyone is having problems installing Node RED, or additional Node modules. You may get a 404 error. This is expected, whilst NPM undergoes an upgrade schedule - this is outside of Node RED's control. Pleas…

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## [Kostal Piko 5.5](https://discourse.nodered.org/t/kostal-piko-5-5/93767)

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**Author:** [@RienPutmans](https://discourse.nodered.org/u/RienPutmans)\
**Replies:** 3\
**Last updated:** [8 December 2024 14:53 UTC](https://discourse.nodered.org/t/kostal-piko-5-5/93767 "2024-12-08T14:53:57Z")

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Hi, I'm really new here and just started with Nod-red. Is there someone who can give a complete designed flow to read registers from a Piko 5.5 inverter with a modbus tcp module. Kostal give this example \*Request tele…

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## [Server Error 429](https://discourse.nodered.org/t/server-error-429/93777)

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**Author:** [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Replies:** 2\
**Last updated:** [8 December 2024 11:28 UTC](https://discourse.nodered.org/t/server-error-429/93777 "2024-12-08T11:28:13Z")

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Either, I am a deranged forum user that hangs around like a weirdo, or my browser (Safari) has tourettes. But every so often, I get no styling/images/resources at all on the forum. Checking logs, I get error 429 - too …

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## [Node-red container in docker: How do I get out of a Restart Loop?](https://discourse.nodered.org/t/node-red-container-in-docker-how-do-i-get-out-of-a-restart-loop/93774)

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**Author:** [@ll135791](https://discourse.nodered.org/u/ll135791)\
**Replies:** 3\
**Last updated:** [8 December 2024 09:50 UTC](https://discourse.nodered.org/t/node-red-container-in-docker-how-do-i-get-out-of-a-restart-loop/93774 "2024-12-08T09:50:47Z")

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I was configuring my node-red container to my mininet container both under the same docker, and when I went to change setting.json properties I believe I might have doubled a line that caused a syntax error to occur. Eve…

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## [Scrape data from web page](https://discourse.nodered.org/t/scrape-data-from-web-page/93768)

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**Author:** [@marco-dmaa](https://discourse.nodered.org/u/marco-dmaa)\
**Replies:** 1\
**Last updated:** [8 December 2024 09:27 UTC](https://discourse.nodered.org/t/scrape-data-from-web-page/93768 "2024-12-08T09:27:03Z")

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Good evening! I've been trying to extract data from an HTML page for a week, but I just can't seem to do it... I need to extract a value, and this is the xpath from Chrome console: /html/body/section/md-content/div/div…

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## [How to Resume All Functionality in Node-RED After a Restart?](https://discourse.nodered.org/t/how-to-resume-all-functionality-in-node-red-after-a-restart/93698)

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**Author:** [@LoganathanSambath](https://discourse.nodered.org/u/LoganathanSambath)\
**Replies:** 19\
**Last updated:** [8 December 2024 09:00 UTC](https://discourse.nodered.org/t/how-to-resume-all-functionality-in-node-red-after-a-restart/93698 "2024-12-08T09:00:23Z")

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I am facing an issue with session management in Node-RED. Here’s what happens: When a user logs in, the UI creates a session and stores it in the database with a defined expiration time. If Node-RED is not restarted, t…

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## [Uibuilder Uib-element - with variable html id](https://discourse.nodered.org/t/uibuilder-uib-element-with-variable-html-id/93763)

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**Author:** [@skytrackerdave](https://discourse.nodered.org/u/skytrackerdave)\
**Replies:** 2\
**Last updated:** [8 December 2024 05:45 UTC](https://discourse.nodered.org/t/uibuilder-uib-element-with-variable-html-id/93763 "2024-12-08T05:45:57Z")

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I am interested in inserting a different id each time I insert a div using uib-element. To use one of the uibuilder examples; \<div id="md1"\>\<h2\>Markdown Card\</h2\> \<p\>Dynamically added from a Node-RED/UIBUILDER no-code …

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## [When using projects, changing settings.js to auto commit does not work](https://discourse.nodered.org/t/when-using-projects-changing-settings-js-to-auto-commit-does-not-work/93770)

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**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\
**Replies:** 0\
**Last updated:** [7 December 2024 22:09 UTC](https://discourse.nodered.org/t/when-using-projects-changing-settings-js-to-auto-commit-does-not-work/93770 "2024-12-07T22:09:14Z")

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I tried changing the commit to "auto" in settings.js and then restarting node-red but that did not change the process to auto commit. FYI, I went into the node-red dir and edited .config.users.json and changed the proce…

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## [Problems scraping data from web page](https://discourse.nodered.org/t/problems-scraping-data-from-web-page/92445)

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**Author:** [@marco-dmaa](https://discourse.nodered.org/u/marco-dmaa)\
**Replies:** 3\
**Last updated:** [7 December 2024 20:40 UTC](https://discourse.nodered.org/t/problems-scraping-data-from-web-page/92445 "2024-12-07T20:40:25Z")

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Good evening, I have been trying for three days to retrieve data from an HTML page using the HTML node. Unfortunately, I am only able to partially extract the data. I would like to understand what I am doing wrong. Thi…

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## [Does Node-RED flow execution run faster than debug or UI updates like counters?](https://discourse.nodered.org/t/does-node-red-flow-execution-run-faster-than-debug-or-ui-updates-like-counters/92629)

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**Author:** [@flipzz](https://discourse.nodered.org/u/flipzz)\
**Replies:** 11\
**Last updated:** [7 December 2024 17:25 UTC](https://discourse.nodered.org/t/does-node-red-flow-execution-run-faster-than-debug-or-ui-updates-like-counters/92629 "2024-12-07T17:25:33Z")

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In my Node-RED flow, I'm noticing that the execution seems to happen faster than what is shown in the UI, such as in the debug panel or flow dashboard. For example, in a delay node, the counter seems to count up to the m…

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## [How to allow a message to pass through a Join node only when the contents have changed](https://discourse.nodered.org/t/how-to-allow-a-message-to-pass-through-a-join-node-only-when-the-contents-have-changed/93761)

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**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 2\
**Last updated:** [7 December 2024 16:39 UTC](https://discourse.nodered.org/t/how-to-allow-a-message-to-pass-through-a-join-node-only-when-the-contents-have-changed/93761 "2024-12-07T16:39:47Z")

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I am rotating an object forward for n seconds and reverse for m seconds. n and m come from MQTT data. I have worked out everything (combining messages, javascript in function node, etc.), but I would like to adjust thi…

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## [Node-red-contrib-modbus Help?](https://discourse.nodered.org/t/node-red-contrib-modbus-help/93716)

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**Author:** [@Buzzylogic](https://discourse.nodered.org/u/Buzzylogic)\
**Replies:** 3\
**Last updated:** [7 December 2024 12:03 UTC](https://discourse.nodered.org/t/node-red-contrib-modbus-help/93716 "2024-12-07T12:03:53Z")

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I'm using node-red-contrib-modbus to set speed and turn on/off a VFD drive over ethernet. I have a manual for the drive, but when I try to write a value to the address, it says "Error: Modbus exception 2: Illegal data ad…

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## [Receive triggers from IFTT](https://discourse.nodered.org/t/receive-triggers-from-iftt/93753)

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**Author:** [@k5map](https://discourse.nodered.org/u/k5map)\
**Replies:** 1\
**Last updated:** [7 December 2024 10:22 UTC](https://discourse.nodered.org/t/receive-triggers-from-iftt/93753 "2024-12-07T10:22:00Z")

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Is there a way to receive a trigger event from IFTT to NR? If so, can you provide an example flow?

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## [OAuth works for the admin flow editor but maybe not the node dashboard httpNodeAuth?](https://discourse.nodered.org/t/oauth-works-for-the-admin-flow-editor-but-maybe-not-the-node-dashboard-httpnodeauth/93695)

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**Author:** [@HeneryH](https://discourse.nodered.org/u/HeneryH)\
**Replies:** 8\
**Last updated:** [7 December 2024 07:44 UTC](https://discourse.nodered.org/t/oauth-works-for-the-admin-flow-editor-but-maybe-not-the-node-dashboard-httpnodeauth/93695 "2024-12-07T07:44:38Z")

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Is there really only a single hardcoded user available to protect the dashboard? HTTP Node security The routes exposed by the HTTP In nodes can be secured using basic authentication. The httpNodeAuth property in your…

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## [Using NodeRED with the Grove-Base-Hat for raspberry pi](https://discourse.nodered.org/t/using-nodered-with-the-grove-base-hat-for-raspberry-pi/93712)

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**Author:** [@rajsiyer](https://discourse.nodered.org/u/rajsiyer)\
**Replies:** 10\
**Last updated:** [7 December 2024 04:58 UTC](https://discourse.nodered.org/t/using-nodered-with-the-grove-base-hat-for-raspberry-pi/93712 "2024-12-07T04:58:32Z")

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Hi, I am new to both NodeRED and raspberry pi. I'd been reading the excellent book by Taiji Hagino. He uses the node-red-contrib-grove-base-hat. Despite installing it from the palette manager, I am not getting it right. …

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## [Everyone is away and alarm is disarmed](https://discourse.nodered.org/t/everyone-is-away-and-alarm-is-disarmed/93720)

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**Author:** [@Node11](https://discourse.nodered.org/u/Node11)\
**Replies:** 7\
**Last updated:** [6 December 2024 21:13 UTC](https://discourse.nodered.org/t/everyone-is-away-and-alarm-is-disarmed/93720 "2024-12-06T21:13:36Z")

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Hi, I'd like to have a flow that does the following: -when "device\_tracker.a" and "device\_tracker.b" are both away and: -when alarm\_control\_panel.alarm\_partition\_1 is disarmed then: -notify "mobile\_app\_iphone\_14" a…

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## [Control Woodstove Blower](https://discourse.nodered.org/t/control-woodstove-blower/93743)

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**Author:** [@DeckerJS](https://discourse.nodered.org/u/DeckerJS)\
**Replies:** 5\
**Last updated:** [7 December 2024 01:32 UTC](https://discourse.nodered.org/t/control-woodstove-blower/93743 "2024-12-07T01:32:36Z")

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'''\[{"id":"c210e4047650ec50","type":"api-current-state","z":"34065289c6b1b6fb","name":"Livingroom Temperature \<= 75","server":"4a63ddf5.8fd424","version":3,"outputs":2,"halt\_if":"75","halt\_if\_type":"num","halt\_if\_compare…

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## [Working with messages, objects to array, ui-table](https://discourse.nodered.org/t/working-with-messages-objects-to-array-ui-table/93744)

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**Author:** [@cklc625](https://discourse.nodered.org/u/cklc625)\
**Replies:** 7\
**Last updated:** [6 December 2024 21:39 UTC](https://discourse.nodered.org/t/working-with-messages-objects-to-array-ui-table/93744 "2024-12-06T21:39:48Z")

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I'm using node-red for quite a long time and did a lot of useful things with it. Due to the documentation, forum and provided info's I was able to solve problems on my own. It seems, that I reached my personal limits now…

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## [How to filter a long string that is split](https://discourse.nodered.org/t/how-to-filter-a-long-string-that-is-split/93737)

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**Author:** [@KSO760](https://discourse.nodered.org/u/KSO760)\
**Replies:** 10\
**Last updated:** [6 December 2024 20:34 UTC](https://discourse.nodered.org/t/how-to-filter-a-long-string-that-is-split/93737 "2024-12-06T20:34:15Z")

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I have a string from Brultech GEM that I can split with the & deliminator. n=00012915&m=5234702&wh\_1=153454.32&p\_1=3&wh\_2=14839.24&p\_2=20&wh\_3=46336.37&p\_3=0&wh\_4=134758.34&p\_4=11&wh\_5=161041.46&p\_5=0&wh\_6=121477.05&p\_6…

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## [Inserting a time format to influxdb - 8:45:00](https://discourse.nodered.org/t/inserting-a-time-format-to-influxdb-800/93717)

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**Author:** [@richiep](https://discourse.nodered.org/u/richiep)\
**Replies:** 5\
**Last updated:** [6 December 2024 19:52 UTC](https://discourse.nodered.org/t/inserting-a-time-format-to-influxdb-800/93717 "2024-12-06T19:52:00Z")

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Hey All, I'm using the Hourglass Pallet to record how many hours I have a fire in my Rocket Mass Heater each day. At just before midnight I want to send the daily burn time to influxdb and graph it. I'm able to do thi…

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