# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=547

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

**Page:** 548

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## ["Cannot GET/" No GUI](https://discourse.nodered.org/t/cannot-get-no-gui/46323)

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**Author:** [@subwayfootlong](https://discourse.nodered.org/u/subwayfootlong)\
**Replies:** 7\
**Last updated:** [28 May 2021 09:08 UTC](https://discourse.nodered.org/t/cannot-get-no-gui/46323 "2021-05-28T09:08:54Z")

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I cant access the GUI. Usually if there was an error, it would display after the / but there's nothing For some reason, im able to access it on another pc on the same network but not locally?

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## [Unable to remove return carriage from msg](https://discourse.nodered.org/t/unable-to-remove-return-carriage-from-msg/46392)

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**Author:** [@FeliceM](https://discourse.nodered.org/u/FeliceM)\
**Replies:** 2\
**Last updated:** [28 May 2021 08:18 UTC](https://discourse.nodered.org/t/unable-to-remove-return-carriage-from-msg/46392 "2021-05-28T08:18:06Z")

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I am receiving a simple msg from a Python code controlling a temperature sensor. The Python output is stable and doesn't show any carriage return/new line or spaces I have set a function trying to remove the carriage r…

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## [Conbee2 on raspberry, WIFI as Access Point possible?](https://discourse.nodered.org/t/conbee2-on-raspberry-wifi-as-access-point-possible/46389)

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**Author:** [@ie404](https://discourse.nodered.org/u/ie404)\
**Replies:** 0\
**Last updated:** [28 May 2021 07:13 UTC](https://discourse.nodered.org/t/conbee2-on-raspberry-wifi-as-access-point-possible/46389 "2021-05-28T07:13:25Z")

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Hi there, im using a rapsberry pi with conbee2 and have some zigbee devices which work great with node-red. Now, i bought a shelly Plug S, which uses wifi. To seperate my wifi from a IOT-wifi i´d like to create an own …

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## [NR and MQTT updates have broken my project](https://discourse.nodered.org/t/nr-and-mqtt-updates-have-broken-my-project/46298)

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**Author:** [@bodylinksystems](https://discourse.nodered.org/u/bodylinksystems)\
**Replies:** 20\
**Last updated:** [28 May 2021 00:17 UTC](https://discourse.nodered.org/t/nr-and-mqtt-updates-have-broken-my-project/46298 "2021-05-28T00:17:33Z")

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TL;DR: It worked last year, updating to newest versions of NR and MQTT broke it. Many UI elements were particularly affected. Older version still works but no MQTT. OLD Versions / (NEW Versions are the latest provided v…

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## [Try to scrape a website, that contain only one table](https://discourse.nodered.org/t/try-to-scrape-a-website-that-contain-only-one-table/46326)

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**Author:** [@Vamp](https://discourse.nodered.org/u/Vamp)\
**Replies:** 3\
**Last updated:** [27 May 2021 21:14 UTC](https://discourse.nodered.org/t/try-to-scrape-a-website-that-contain-only-one-table/46326 "2021-05-27T21:14:31Z")

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Hello there, I try to scrape a very basic site (it only a table at all) https://www.met.hu/idojaras/veszelyjelzes/hover.php?id=wbhx&kod=18 I use this node: https://flows.nodered.org/node/node-red-contrib-scrape-it it …

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## [Use a OS variable](https://discourse.nodered.org/t/use-a-os-variable/46345)

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**Author:** [@pvanklink](https://discourse.nodered.org/u/pvanklink)\
**Replies:** 5\
**Last updated:** [27 May 2021 21:14 UTC](https://discourse.nodered.org/t/use-a-os-variable/46345 "2021-05-27T21:14:27Z")

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I like to use a os variable in my flow, the hostname. So i added a line in (top) of settings.js (Nodered is installed as a docker container on a rpi 4b, with the latest image/container of NR) process.env.hostname = re…

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## [Comment Status Log](https://discourse.nodered.org/t/comment-status-log/46293)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 5\
**Last updated:** [27 May 2021 20:54 UTC](https://discourse.nodered.org/t/comment-status-log/46293 "2021-05-27T20:54:56Z")

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Hi Folks, I am wanting to create a status log for node red over MQTT where people can comment/post messages to the log. I thought this could be achieved through the form on node red however it doesnt quite achieve this. …

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## [Getting Error: "Parse Error: Expected HTTP" - "HPE\_INVALID\_CONSTANT"](https://discourse.nodered.org/t/getting-error-parse-error-expected-http-hpe-invalid-constant/45868)

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**Author:** [@NoeudRouge](https://discourse.nodered.org/u/NoeudRouge)\
**Replies:** 32\
**Last updated:** [27 May 2021 19:41 UTC](https://discourse.nodered.org/t/getting-error-parse-error-expected-http-hpe-invalid-constant/45868 "2021-05-27T19:41:14Z")

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Hi, I have a ethernet webrelay (WebRelay | Ethernet Relay | Remote Relay Control) that opens my front door. To open the door I simply have to open a browser and type in: http://192.168.10.224:10359/state.xml?relayStat…

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## [Send alert when it exceeds a temperature value](https://discourse.nodered.org/t/send-alert-when-it-exceeds-a-temperature-value/46169)

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**Author:** [@mimecosa](https://discourse.nodered.org/u/mimecosa)\
**Replies:** 8\
**Last updated:** [27 May 2021 19:21 UTC](https://discourse.nodered.org/t/send-alert-when-it-exceeds-a-temperature-value/46169 "2021-05-27T19:21:34Z")

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Hello, I am programming an alert system when the temperature range (17-24) is exceeded. The point is, I need to know two things: The notification has to be sent only once. Have a notification sent again when the values…

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## [Using MQTT retained messages to store state between reboots](https://discourse.nodered.org/t/using-mqtt-retained-messages-to-store-state-between-reboots/46234)

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**Author:** [@skybadger](https://discourse.nodered.org/u/skybadger)\
**Replies:** 24\
**Last updated:** [27 May 2021 17:32 UTC](https://discourse.nodered.org/t/using-mqtt-retained-messages-to-store-state-between-reboots/46234 "2021-05-27T17:32:53Z")

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Hi all I am using ESPs and pubsubclient to publish to and subscribe from node-red MQTT. I have a fairly extensive device network now running that listens for the published heartbeat and then responds by publishing loca…

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## [Subflow with Credentials](https://discourse.nodered.org/t/subflow-with-credentials/46349)

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**Author:** [@nacartwright](https://discourse.nodered.org/u/nacartwright)\
**Replies:** 0\
**Last updated:** [27 May 2021 15:06 UTC](https://discourse.nodered.org/t/subflow-with-credentials/46349 "2021-05-27T15:06:45Z")

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I'm using the node-red-contrib-google-calendar node (which is awesome btw). It works great. Though, I crated a subflow off what I had originally done in the main flow and it no longer seems to be working. It allows for e…

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## [How to fetch browser console data to node-red debug message?](https://discourse.nodered.org/t/how-to-fetch-browser-console-data-to-node-red-debug-message/46263)

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**Author:** [@jdenbaibai](https://discourse.nodered.org/u/jdenbaibai)\
**Replies:** 5\
**Last updated:** [27 May 2021 14:19 UTC](https://discourse.nodered.org/t/how-to-fetch-browser-console-data-to-node-red-debug-message/46263 "2021-05-27T14:19:28Z")

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Good evening everyone, I'm facing problem about fetching the browser console data to node-red debug message, I want to fetch the browser console message which is "default" to the node-red debug message. and this is t…

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## [Inserting a record in MySQL from a payload: Null values are being inserted in fields](https://discourse.nodered.org/t/inserting-a-record-in-mysql-from-a-payload-null-values-are-being-inserted-in-fields/46340)

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**Author:** [@shnkar007](https://discourse.nodered.org/u/shnkar007)\
**Replies:** 1\
**Last updated:** [27 May 2021 12:59 UTC](https://discourse.nodered.org/t/inserting-a-record-in-mysql-from-a-payload-null-values-are-being-inserted-in-fields/46340 "2021-05-27T12:59:44Z")

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Hi I'm new to NodeRed. I am trying to insert a row in mysql table in a nodered function. In the inject node I have specified the values of each field and added to msg.payload. In the function node, I'm creating an Inse…

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## [How to add custom Blockly to Node Red](https://discourse.nodered.org/t/how-to-add-custom-blockly-to-node-red/46295)

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**Author:** [@rth](https://discourse.nodered.org/u/rth)\
**Replies:** 7\
**Last updated:** [27 May 2021 12:12 UTC](https://discourse.nodered.org/t/how-to-add-custom-blockly-to-node-red/46295 "2021-05-27T12:12:22Z")

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Hello everyone, I am a student working on a project with Node-RED and Blockly. I have already customized Blockly with extra Blocks and Categories that I need. Also I have changed the Layout and Design of it. My goal is…

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## [Insert data to template to http endpoint](https://discourse.nodered.org/t/insert-data-to-template-to-http-endpoint/46334)

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**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 1\
**Last updated:** [27 May 2021 11:40 UTC](https://discourse.nodered.org/t/insert-data-to-template-to-http-endpoint/46334 "2021-05-27T11:40:14Z")

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I want to get data from some json page, change it, and create endpoint \[{"id":"16968f0f.405cd9","type":"inject","z":"f228441f.926208","name":"","repeat":"1","crontab":"","once":true,"onceDelay":"1","topic":"","payloa…

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## [Gpiod input provide status "OK" at start of flow](https://discourse.nodered.org/t/gpiod-input-provide-status-ok-at-start-of-flow/46329)

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**Author:** [@frans](https://discourse.nodered.org/u/frans)\
**Replies:** 0\
**Last updated:** [27 May 2021 10:07 UTC](https://discourse.nodered.org/t/gpiod-input-provide-status-ok-at-start-of-flow/46329 "2021-05-27T10:07:45Z")

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Noticed that the gpiod inputs provide at start of the flow instead of 0 or 1 most of the time the status OK and no output msg is generated, despite the check box "Read initial state of pin on deploy/restart?" However so…

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## [Sending the output to a specific node (with single output)](https://discourse.nodered.org/t/sending-the-output-to-a-specific-node-with-single-output/46171)

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**Author:** [@karthikraja](https://discourse.nodered.org/u/karthikraja)\
**Replies:** 10\
**Last updated:** [27 May 2021 08:19 UTC](https://discourse.nodered.org/t/sending-the-output-to-a-specific-node-with-single-output/46171 "2021-05-27T08:19:04Z")

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Hi Friends, am currently learning node-red and this might be basic knowledge. I understand that I can have multiple outputs on a node and send the msg through different outputs. My doubt is, can I use single output, and …

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## [Store and retrieve an array from database](https://discourse.nodered.org/t/store-and-retrieve-an-array-from-database/46189)

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**Author:** [@pvklink](https://discourse.nodered.org/u/pvklink)\
**Replies:** 3\
**Last updated:** [27 May 2021 07:58 UTC](https://discourse.nodered.org/t/store-and-retrieve-an-array-from-database/46189 "2021-05-27T07:58:13Z")

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Hi, I have a flow that retrieves data (numeric) values (code to put on or off a light by rf commands and store these codes into a databse mysql and retrieve them when needed, for example to turn a device on/off. I have…

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## [failed to create file: Error: EACCES: permission denied, mkdir](https://discourse.nodered.org/t/failed-to-create-file-error-eacces-permission-denied-mkdir/44479)

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**Author:** [@vb70.exe](https://discourse.nodered.org/u/vb70.exe)\
**Replies:** 6\
**Last updated:** [27 May 2021 07:28 UTC](https://discourse.nodered.org/t/failed-to-create-file-error-eacces-permission-denied-mkdir/44479 "2021-05-27T07:28:08Z")

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Hello I have a problem of permission with nodered docker in my flow.json I have a file node that should create a txt file for me to save info but I have this message: failed to create file: Error: EACCES: permission deni…

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## [Composite two JIMP images using node-red-contrib-image-tools](https://discourse.nodered.org/t/composite-two-jimp-images-using-node-red-contrib-image-tools/46307)

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**Author:** [@johnwalicki](https://discourse.nodered.org/u/johnwalicki)\
**Replies:** 4\
**Last updated:** [27 May 2021 05:23 UTC](https://discourse.nodered.org/t/composite-two-jimp-images-using-node-red-contrib-image-tools/46307 "2021-05-27T05:23:25Z")

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I've got a flow which queries North America weather radar tiles using The Weather Company APIs. The tiles are just the storm radar, no underlying geographic map. Separately another part of the flow queries MapBox and r…

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## [Getting http request to work with HTTP 0.9](https://discourse.nodered.org/t/getting-http-request-to-work-with-http-0-9/46302)

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**Author:** [@TriLife](https://discourse.nodered.org/u/TriLife)\
**Replies:** 7\
**Last updated:** [26 May 2021 21:55 UTC](https://discourse.nodered.org/t/getting-http-request-to-work-with-http-0-9/46302 "2021-05-26T21:55:33Z")

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Greetings; Just started playing with Node Red on my brand new Rpi 4. I was able to read information from an Arduino running a simple web server without a problem. Now, I'm trying to get Node Red to display some informat…

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## [Code does not work in function node but works fine when run separately](https://discourse.nodered.org/t/code-does-not-work-in-function-node-but-works-fine-when-run-separately/46297)

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**Author:** [@karthikraja](https://discourse.nodered.org/u/karthikraja)\
**Replies:** 19\
**Last updated:** [26 May 2021 20:46 UTC](https://discourse.nodered.org/t/code-does-not-work-in-function-node-but-works-fine-when-run-separately/46297 "2021-05-26T20:46:12Z")

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Hi friends, I am using ExcelJS to write array to excel. and it's working fine when i run it using node exceltest.js const ExcelJS = require('exceljs'); exceltest() async function exceltest(){ try{ const workbook = …

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## [Help needed with multi line text file to CSV](https://discourse.nodered.org/t/help-needed-with-multi-line-text-file-to-csv/46284)

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**Author:** [@Rime](https://discourse.nodered.org/u/Rime)\
**Replies:** 5\
**Last updated:** [26 May 2021 20:04 UTC](https://discourse.nodered.org/t/help-needed-with-multi-line-text-file-to-csv/46284 "2021-05-26T20:04:37Z")

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As new starter some hel needed on how to: I have a multi line text file that needs to be converted to csv. What node would be the best to start and how to add script to the node, been reading for hours now. example in…

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## [Changing home assistant entity states from node-red](https://discourse.nodered.org/t/changing-home-assistant-entity-states-from-node-red/46099)

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**Author:** [@another\_dave](https://discourse.nodered.org/u/another_dave)\
**Replies:** 3\
**Last updated:** [26 May 2021 15:50 UTC](https://discourse.nodered.org/t/changing-home-assistant-entity-states-from-node-red/46099 "2021-05-26T15:50:55Z")

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Hi All, Is it possible to change the state of an entity in home assistant from node-red. My flat Has dual hive heating thermostats, one for bedroom and one which covers the remaining rooms. In the evening the heating …

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## [How to a comma into a payload string 123456 into 123,456](https://discourse.nodered.org/t/how-to-a-comma-into-a-payload-string-123456-into-123-456/46290)

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**Author:** [@DeSwaggy](https://discourse.nodered.org/u/DeSwaggy)\
**Replies:** 2\
**Last updated:** [26 May 2021 15:49 UTC](https://discourse.nodered.org/t/how-to-a-comma-into-a-payload-string-123456-into-123-456/46290 "2021-05-26T15:49:46Z")

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Hello, I'm trying to turn a string .payload from 123456 into 123,456. The reason for adding the comma is to split-up and then use a split node to only change the second part ,456 using parts/index:# into a step then jo…

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## [Running more than one Telegram 'bot'](https://discourse.nodered.org/t/running-more-than-one-telegram-bot/46254)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 8\
**Last updated:** [26 May 2021 15:36 UTC](https://discourse.nodered.org/t/running-more-than-one-telegram-bot/46254 "2021-05-26T15:36:27Z")

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Is it possible to run more than one Telegram 'bot' in Node-RED?? I'm using... node-red-contrib-telegrambot (9.4.2) with NR v1.3.5 I've got a bot running on one of my Raspberry Pi(es) and would now like to create anothe…

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## [Content-Type set to application/octet-stream regardless of selection in cos-put node](https://discourse.nodered.org/t/content-type-set-to-application-octet-stream-regardless-of-selection-in-cos-put-node/46279)

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**Author:** [@NRdiscrs9393](https://discourse.nodered.org/u/NRdiscrs9393)\
**Replies:** 0\
**Last updated:** [26 May 2021 13:01 UTC](https://discourse.nodered.org/t/content-type-set-to-application-octet-stream-regardless-of-selection-in-cos-put-node/46279 "2021-05-26T13:01:30Z")

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Hello, Does anyone know what I am doing wrong or what wrong with https://flows.nodered.org/node/node-red-contrib-cos? It seems that no matter what I set the Content Type to the object is set to application/octet-stream …

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## [How to diagnose crashing possibly caused by memory leak](https://discourse.nodered.org/t/how-to-diagnose-crashing-possibly-caused-by-memory-leak/46280)

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**Author:** [@stevefromNewcastle](https://discourse.nodered.org/u/stevefromNewcastle)\
**Replies:** 15\
**Last updated:** [26 May 2021 15:19 UTC](https://discourse.nodered.org/t/how-to-diagnose-crashing-possibly-caused-by-memory-leak/46280 "2021-05-26T15:19:10Z")

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Hi everyone, I have a remote node red installation that is being used to schedule events using the cronplus node and sends and receives commands over OSC. I installed and run the Pi according to the instructions on the …

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## [Retain on MQTT Node not working](https://discourse.nodered.org/t/retain-on-mqtt-node-not-working/46283)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 8\
**Last updated:** [26 May 2021 15:08 UTC](https://discourse.nodered.org/t/retain-on-mqtt-node-not-working/46283 "2021-05-26T15:08:39Z")

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Hello Folks, I have recently been using the MQTT node on Node Red yet trying to use the retain functionality on the Node. Has anyone else had issues that when using the retain function no data is updated on that specif…

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## [World Map - Unit of speed](https://discourse.nodered.org/t/world-map-unit-of-speed/46220)

<div class="topic-metadata">

**Author:** [@Nice\_to\_have](https://discourse.nodered.org/u/Nice_to_have)\
**Replies:** 7\
**Last updated:** [26 May 2021 13:39 UTC](https://discourse.nodered.org/t/world-map-unit-of-speed/46220 "2021-05-26T13:39:19Z")

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First of all, many thanks for he who made the world map node. It's awesome. I only have one question; I am showing speed in Knots in the popup. But i'd like the viewer to see it is kn. But when I use x.speed = x.spee…

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