# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=193

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

**Page:** 194

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## [Postman HTTP GET request is functioning, Node-RED returning 'RequestError: Parse Error: Invalid header value char :'](https://discourse.nodered.org/t/postman-http-get-request-is-functioning-node-red-returning-requesterror-parse-error-invalid-header-value-char/79935)

<div class="topic-metadata">

**Author:** [@gettmad](https://discourse.nodered.org/u/gettmad)\
**Replies:** 6\
**Last updated:** [20 July 2023 10:59 UTC](https://discourse.nodered.org/t/postman-http-get-request-is-functioning-node-red-returning-requesterror-parse-error-invalid-header-value-char/79935 "2023-07-20T10:59:43Z")

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Hello, In the flow below, I am attempting to do a simple HTTP GET Request however I keep receiving the following error; ''RequestError: Parse Error: Invalid header value char :'. For this flow I have set the headers dir…

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## [Best practice and recommendations](https://discourse.nodered.org/t/best-practice-and-recommendations/79932)

<div class="topic-metadata">

**Author:** [@SvenT](https://discourse.nodered.org/u/SvenT)\
**Replies:** 7\
**Last updated:** [20 July 2023 09:18 UTC](https://discourse.nodered.org/t/best-practice-and-recommendations/79932 "2023-07-20T09:18:29Z")

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Hey there, I am a complete newbie in Node Red so sorry for the very basic questions. I have some devices that I want to handle with NR: a smart home system based on the homematic controller based on a a raspi (Raspbe…

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## [Warning "Encrypted credentials not found"](https://discourse.nodered.org/t/warning-encrypted-credentials-not-found/79891)

<div class="topic-metadata">

**Author:** [@BitEater](https://discourse.nodered.org/u/BitEater)\
**Replies:** 26\
**Last updated:** [20 July 2023 08:26 UTC](https://discourse.nodered.org/t/warning-encrypted-credentials-not-found/79891 "2023-07-20T08:26:57Z")

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Hi all, I successfully installed Node Red on a Windows VM and it works. Now I installed it on my Raspberry Pi and I always get the warning "Encrypted credentials not found" at startup and I cannot start any flows. I al…

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## [Double click on node, doesn't work](https://discourse.nodered.org/t/double-click-on-node-doesnt-work/79953)

<div class="topic-metadata">

**Author:** [@ruk-shan](https://discourse.nodered.org/u/ruk-shan)\
**Replies:** 1\
**Last updated:** [20 July 2023 08:26 UTC](https://discourse.nodered.org/t/double-click-on-node-doesnt-work/79953 "2023-07-20T08:26:31Z")

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example\_flow.json (3.9 KB) I have imported this flow (from another node-red) and after I deploy it, unable to double click on the nodes. Even if I drag another node, that also doesn't work. This Node-red is running in a…

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## [HA Lighting control in subflows with momentary buttons](https://discourse.nodered.org/t/ha-lighting-control-in-subflows-with-momentary-buttons/79940)

<div class="topic-metadata">

**Author:** [@Tul](https://discourse.nodered.org/u/Tul)\
**Replies:** 3\
**Last updated:** [20 July 2023 06:57 UTC](https://discourse.nodered.org/t/ha-lighting-control-in-subflows-with-momentary-buttons/79940 "2023-07-20T06:57:29Z")

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Hi All, I'm quite new to this, but I've made a good flow that allows on/off and move up/dn with hold and release. Up/Down-direction is controlled by light level, over a certain level it goes up, otherwise down. But...…

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## [Remote-Red remote access](https://discourse.nodered.org/t/remote-red-remote-access/79943)

<div class="topic-metadata">

**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 1\
**Last updated:** [19 July 2023 21:52 UTC](https://discourse.nodered.org/t/remote-red-remote-access/79943 "2023-07-19T21:52:45Z")

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When running remote red, after about an hour I am no longer able to connect to my home server, and when i connect to it locally the node says "serving-no end point detected" , if I redeploy then it works again for some t…

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## [How to update web page data](https://discourse.nodered.org/t/how-to-update-web-page-data/79926)

<div class="topic-metadata">

**Author:** [@BitEater](https://discourse.nodered.org/u/BitEater)\
**Replies:** 2\
**Last updated:** [19 July 2023 20:08 UTC](https://discourse.nodered.org/t/how-to-update-web-page-data/79926 "2023-07-19T20:08:06Z")

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I want to create a Node Red project with basically the following features: Users can log in via web page. The users have different roles. Some roles enter data which is stored on a database or other item on the Raspber…

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## [Function to take parsed CSV file and indicate where a '0' is and send an email with the name of the item that has the '0'](https://discourse.nodered.org/t/function-to-take-parsed-csv-file-and-indicate-where-a-0-is-and-send-an-email-with-the-name-of-the-item-that-has-the-0/79942)

<div class="topic-metadata">

**Author:** [@mlabella](https://discourse.nodered.org/u/mlabella)\
**Replies:** 10\
**Last updated:** [19 July 2023 18:33 UTC](https://discourse.nodered.org/t/function-to-take-parsed-csv-file-and-indicate-where-a-0-is-and-send-an-email-with-the-name-of-the-item-that-has-the-0/79942 "2023-07-19T18:33:44Z")

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I am trying to write a function that will take data from a csv file where one column is filled with names and one with quantities and send the rows where the quantities are '0' out into an email. tree,9 car,6 nuts,0 …

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## [W\_Led mit ESP8266](https://discourse.nodered.org/t/w-led-mit-esp8266/79925)

<div class="topic-metadata">

**Author:** [@ahtdf](https://discourse.nodered.org/u/ahtdf)\
**Replies:** 4\
**Last updated:** [19 July 2023 11:09 UTC](https://discourse.nodered.org/t/w-led-mit-esp8266/79925 "2023-07-19T11:09:28Z")

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Hello I would like to control a WLED via an ESP8266 with a color picker. Unfortunately I can't get any further, a string comes out of the color picker. I shortened it to the bare essentials and added the 4th digit. …

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## [Langchain Nodes?](https://discourse.nodered.org/t/langchain-nodes/79919)

<div class="topic-metadata">

**Author:** [@Mobivs](https://discourse.nodered.org/u/Mobivs)\
**Replies:** 1\
**Last updated:** [19 July 2023 06:27 UTC](https://discourse.nodered.org/t/langchain-nodes/79919 "2023-07-19T06:27:05Z")

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Does anyone have any langchainJS nodes in development? This would be a big thing and a perfect AI match! Search Flowise and look how popular and clunkie their young tech is. They are not even as mature and robust as Node…

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## [Modbus rtu with nodered](https://discourse.nodered.org/t/modbus-rtu-with-nodered/79920)

<div class="topic-metadata">

**Author:** [@VEENS973](https://discourse.nodered.org/u/VEENS973)\
**Replies:** 0\
**Last updated:** [18 July 2023 23:58 UTC](https://discourse.nodered.org/t/modbus-rtu-with-nodered/79920 "2023-07-18T23:58:01Z")

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how to manage 10 slaves rtu modbus holding register?

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## [Node-red-contrib-iiot-opcua - MaxSubscriptionsPerSession](https://discourse.nodered.org/t/node-red-contrib-iiot-opcua-maxsubscriptionspersession/79913)

<div class="topic-metadata">

**Author:** [@moises](https://discourse.nodered.org/u/moises)\
**Replies:** 0\
**Last updated:** [18 July 2023 17:43 UTC](https://discourse.nodered.org/t/node-red-contrib-iiot-opcua-maxsubscriptionspersession/79913 "2023-07-18T17:43:03Z")

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Hello, I've developed a small program using the node-red-contrib-iiot-opcua module. I'm using it to set a OPC-UA server but I have encountered a limitation. I need to change the parameter MaxSubscriptionsPerSession, w…

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## [Drop messages if not consecutive false](https://discourse.nodered.org/t/drop-messages-if-not-consecutive-false/79904)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 5\
**Last updated:** [18 July 2023 14:50 UTC](https://discourse.nodered.org/t/drop-messages-if-not-consecutive-false/79904 "2023-07-18T14:50:36Z")

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Hi, I have a source which is sending false or true each 120 seconds. What I need to do is to validate the "false" message only if there are 2 consecutive "false", the first one should be dropped. It looks trivial, but I…

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## [Node-red MQTT QOS does not work?](https://discourse.nodered.org/t/node-red-mqtt-qos-does-not-work/79819)

<div class="topic-metadata">

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 9\
**Last updated:** [18 July 2023 14:04 UTC](https://discourse.nodered.org/t/node-red-mqtt-qos-does-not-work/79819 "2023-07-18T14:04:49Z")

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I am publishing an MQTT message every minute from Node-red on a Raspberry Pi to Mosquitto on another Pi, both on my LAN. If I disrupt the connection (shutdown the broker Pi), the missed messages are not delivered when i…

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## [Edge to Cloud computing](https://discourse.nodered.org/t/edge-to-cloud-computing/79815)

<div class="topic-metadata">

**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 9\
**Last updated:** [18 July 2023 10:47 UTC](https://discourse.nodered.org/t/edge-to-cloud-computing/79815 "2023-07-18T10:47:46Z")

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For some time now, I've used my Pi just to collect local sensor data, and forward it by MQTT to a 'free' Oracle cloud server, which does all the heavy lifting, like storing it in a database, visualising it in Grafana etc…

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## [Publish json data through mqtt](https://discourse.nodered.org/t/publish-json-data-through-mqtt/79895)

<div class="topic-metadata">

**Author:** [@PRABHAKAR82](https://discourse.nodered.org/u/PRABHAKAR82)\
**Replies:** 7\
**Last updated:** [18 July 2023 09:13 UTC](https://discourse.nodered.org/t/publish-json-data-through-mqtt/79895 "2023-07-18T09:13:17Z")

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{ "w": \[ { "tag": "RESET1", "value": 0 } \], "ts": "2017-12-28T12:22:21+0000" } I have to publish this data through mqtt but in this code value is static and I want t…

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## [Is there a way to check status on node red gpio node?](https://discourse.nodered.org/t/is-there-a-way-to-check-status-on-node-red-gpio-node/79896)

<div class="topic-metadata">

**Author:** [@Athurian](https://discourse.nodered.org/u/Athurian)\
**Replies:** 6\
**Last updated:** [18 July 2023 07:48 UTC](https://discourse.nodered.org/t/is-there-a-way-to-check-status-on-node-red-gpio-node/79896 "2023-07-18T07:48:12Z")

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Is there a way to check status on node red gpio node? I am trying to convert the status code in the red box in the picture attached to the image here into text data. I want to check the status value of the gpio node…

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## [Originate a call in Asterisk](https://discourse.nodered.org/t/originate-a-call-in-asterisk/13037)

<div class="topic-metadata">

**Author:** [@fernandezjm](https://discourse.nodered.org/u/fernandezjm)\
**Replies:** 11\
**Last updated:** [18 July 2023 06:57 UTC](https://discourse.nodered.org/t/originate-a-call-in-asterisk/13037 "2023-07-18T06:57:04Z")

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Hi all, In my application I want to make a call using Asterisk AMI with the node-red-asterisk-ami-manager in my Grandstream PBX. The node status is connected and I receive events from the node, but when I try to send t…

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## [Show a simple text file as a list with dashboard 'template'](https://discourse.nodered.org/t/show-a-simple-text-file-as-a-list-with-dashboard-template/79842)

<div class="topic-metadata">

**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 9\
**Last updated:** [17 July 2023 17:14 UTC](https://discourse.nodered.org/t/show-a-simple-text-file-as-a-list-with-dashboard-template/79842 "2023-07-17T17:14:17Z")

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A simple task for NR/ui\_template, but the solution is not obvious to me!? A text file is to be read and displayed as a list on a dashboard with ui\_template. The list is stored on a RPI and is read by NR ('read file') a…

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## [Slow dashboard performance across machines](https://discourse.nodered.org/t/slow-dashboard-performance-across-machines/79884)

<div class="topic-metadata">

**Author:** [@richiep](https://discourse.nodered.org/u/richiep)\
**Replies:** 8\
**Last updated:** [17 July 2023 19:57 UTC](https://discourse.nodered.org/t/slow-dashboard-performance-across-machines/79884 "2023-07-17T19:57:28Z")

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Hey All, I built out my Node Red system 6-8 months ago and have been happily using it ever since. I am doing some graphing but I balanced datapoints to performance months ago. On a recent rainy day I discovered that y…

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## [Tabulator in template node should output updated table on edited cells](https://discourse.nodered.org/t/tabulator-in-template-node-should-output-updated-table-on-edited-cells/79877)

<div class="topic-metadata">

**Author:** [@mehdichbani](https://discourse.nodered.org/u/mehdichbani)\
**Replies:** 0\
**Last updated:** [17 July 2023 10:42 UTC](https://discourse.nodered.org/t/tabulator-in-template-node-should-output-updated-table-on-edited-cells/79877 "2023-07-17T10:42:42Z")

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Hello, I have a ui template node where i am using tabulator to display data, i want to be able to pass data from ui template to another function node, more specifically updated the entire table data updated, after chang…

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## [Virtual sunrise / sunrise effect](https://discourse.nodered.org/t/virtual-sunrise-sunrise-effect/79851)

<div class="topic-metadata">

**Author:** [@stefan24](https://discourse.nodered.org/u/stefan24)\
**Replies:** 17\
**Last updated:** [17 July 2023 19:25 UTC](https://discourse.nodered.org/t/virtual-sunrise-sunrise-effect/79851 "2023-07-17T19:25:29Z")

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I have four color bulbs (three in a lamp one above the other and another one above this lamp in a star) and want to create a sunrise effect. But looking for "sunrise" only shows threads regarding calculating the sunrise …

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## [Sending UDP message with backslash](https://discourse.nodered.org/t/sending-udp-message-with-backslash/79876)

<div class="topic-metadata">

**Author:** [@chris3](https://discourse.nodered.org/u/chris3)\
**Replies:** 6\
**Last updated:** [17 July 2023 18:22 UTC](https://discourse.nodered.org/t/sending-udp-message-with-backslash/79876 "2023-07-17T18:22:57Z")

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Hello, I'm trying to send the following UDP message in Node-Red: \\apple But the UDP message being received by the server is: \\\\apple I've been pulling my hair out for a couple of hours trying to come up with a fix a…

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## [Error by installing MSSQL-Plus (Error: package: '@azure/msal-node@1.18.0)](https://discourse.nodered.org/t/error-by-installing-mssql-plus-error-package-azure-msal-node-1-18-0/79878)

<div class="topic-metadata">

**Author:** [@kappo73](https://discourse.nodered.org/u/kappo73)\
**Replies:** 6\
**Last updated:** [17 July 2023 14:02 UTC](https://discourse.nodered.org/t/error-by-installing-mssql-plus-error-package-azure-msal-node-1-18-0/79878 "2023-07-17T14:02:08Z")

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Hi During trying to change my MSSQL packages from "node-red-contrib-mssql" to node-red-contrib-mssql-plus there always appear errors like below: xxxxx@xxxmqtt:~/.node-red$ npm install node-red-contrib-mssql-plus …

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## [Cannot change Date from String into DateTime format](https://discourse.nodered.org/t/cannot-change-date-from-string-into-datetime-format/79869)

<div class="topic-metadata">

**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 7\
**Last updated:** [17 July 2023 12:53 UTC](https://discourse.nodered.org/t/cannot-change-date-from-string-into-datetime-format/79869 "2023-07-17T12:53:53Z")

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Hello. I am querying an API (eia.gov) to get hourly electricity usage for certain entities (called "respondents") in the US. I got the HTTP request working fine, and a typical output is an array with 6 objects like thi…

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## [Using Node-RED to grab data from Webpage (advice required)](https://discourse.nodered.org/t/using-node-red-to-grab-data-from-webpage-advice-required/79759)

<div class="topic-metadata">

**Author:** [@gettmad](https://discourse.nodered.org/u/gettmad)\
**Replies:** 11\
**Last updated:** [17 July 2023 11:30 UTC](https://discourse.nodered.org/t/using-node-red-to-grab-data-from-webpage-advice-required/79759 "2023-07-17T11:30:42Z")

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I am looking to use Node-RED in conjunction with MQTT Explorer in order to parse through a webpage, grab the relevant information, and publish it to MQTT Explorer accordingly. Being relatively new to Node-RED and an ama…

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## [Node-red container has disappeared from Docker, why & how do I retrieve it?](https://discourse.nodered.org/t/node-red-container-has-disappeared-from-docker-why-how-do-i-retrieve-it/79841)

<div class="topic-metadata">

**Author:** [@DublinBayPrawn](https://discourse.nodered.org/u/DublinBayPrawn)\
**Replies:** 7\
**Last updated:** [17 July 2023 10:47 UTC](https://discourse.nodered.org/t/node-red-container-has-disappeared-from-docker-why-how-do-i-retrieve-it/79841 "2023-07-17T10:47:52Z")

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Not sure if this is the appropriate forum or category, but here goes: I have a Synology NAS running Docker. It was set up with containers: Mosquitto MQTT Node-red InfluxDB Grafana Home-Assistant Portainer Watcht…

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## [Using openai (ChatGPT) to write functions and flows](https://discourse.nodered.org/t/using-openai-chatgpt-to-write-functions-and-flows/79858)

<div class="topic-metadata">

**Author:** [@TalokiN](https://discourse.nodered.org/u/TalokiN)\
**Replies:** 4\
**Last updated:** [17 July 2023 08:53 UTC](https://discourse.nodered.org/t/using-openai-chatgpt-to-write-functions-and-flows/79858 "2023-07-17T08:53:42Z")

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I have not really been active, other than reading, on the forums before, but I had to share that I have been having great success with using openai (https://chat.openai.com/) to build/fix function nodes and I'm about to …

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## [Setup a CSV data file with parameters using the data from OPC UA link](https://discourse.nodered.org/t/setup-a-csv-data-file-with-parameters-using-the-data-from-opc-ua-link/79478)

<div class="topic-metadata">

**Author:** [@GAOJY11](https://discourse.nodered.org/u/GAOJY11)\
**Replies:** 4\
**Last updated:** [17 July 2023 08:35 UTC](https://discourse.nodered.org/t/setup-a-csv-data-file-with-parameters-using-the-data-from-opc-ua-link/79478 "2023-07-17T08:35:17Z")

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How to use node-red to read real time data from Siemens IOT2050 and store it in the CSV file with time stamp, is there any function code being suggested?

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## [Node-RED Function for MQTT --\> Influxdb](https://discourse.nodered.org/t/node-red-function-for-mqtt-influxdb/79191)

<div class="topic-metadata">

**Author:** [@Xienter](https://discourse.nodered.org/u/Xienter)\
**Replies:** 4\
**Last updated:** [17 July 2023 07:35 UTC](https://discourse.nodered.org/t/node-red-function-for-mqtt-influxdb/79191 "2023-07-17T07:35:12Z")

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Hi all, I have setup my MQTT and Influxdb connection already and it is working quite good for a while now. Now i want to add some let's call it "advanced functionallity". So a little backround information: I have multi…

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