# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=510

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

**Page:** 511

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## [Lost flows after upgrade on raspberry pi4](https://discourse.nodered.org/t/lost-flows-after-upgrade-on-raspberry-pi4/49475)

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**Author:** [@yawstick1](https://discourse.nodered.org/u/yawstick1)\
**Replies:** 14\
**Last updated:** [9 August 2021 07:43 UTC](https://discourse.nodered.org/t/lost-flows-after-upgrade-on-raspberry-pi4/49475 "2021-08-09T07:43:47Z")

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I've been running Node-Red on a Raspberry pi4 and just did a sudo apt-get upgrade and node-red stopped while this was running. When I restarted it all my flows were gone. Never had this happen before... should I be able …

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## [Node-red Multiple Projects](https://discourse.nodered.org/t/node-red-multiple-projects/49404)

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**Author:** [@T3chn0](https://discourse.nodered.org/u/T3chn0)\
**Replies:** 18\
**Last updated:** [9 August 2021 05:51 UTC](https://discourse.nodered.org/t/node-red-multiple-projects/49404 "2021-08-09T05:51:33Z")

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Hi, ive been searching for something like this plugin: https://flows.nodered.org/flow/d34840c03abc4af11bd2bb8b2dba6a9d But when i installed it doesnt show up the menu for create projects, i dont want to RUN multiple pr…

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## [Implementing a user login system with node-red endpoints](https://discourse.nodered.org/t/implementing-a-user-login-system-with-node-red-endpoints/49496)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 1\
**Last updated:** [9 August 2021 01:41 UTC](https://discourse.nodered.org/t/implementing-a-user-login-system-with-node-red-endpoints/49496 "2021-08-09T01:41:55Z")

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I have a (primitive) Subflow I made on my node-red server that essentially allows for users to be created, registered etc ... It's working fine, but my question is... Am I "reinventing the wheel" ? Are there any worth…

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## [Objectid is not compatible with my version of node](https://discourse.nodered.org/t/objectid-is-not-compatible-with-my-version-of-node/49467)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 7\
**Last updated:** [8 August 2021 21:38 UTC](https://discourse.nodered.org/t/objectid-is-not-compatible-with-my-version-of-node/49467 "2021-08-08T21:38:33Z")

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Trying to migrate to new server, and when I did, I upgraded node-red to version 2.0.5, and now I am having some major issues. Flows won't deploy due to missing node types, and I keep getting errors installing some nodes…

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## [Is it possible to install missing node types automatically?](https://discourse.nodered.org/t/is-it-possible-to-install-missing-node-types-automatically/49465)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 11\
**Last updated:** [8 August 2021 20:53 UTC](https://discourse.nodered.org/t/is-it-possible-to-install-missing-node-types-automatically/49465 "2021-08-08T20:53:18Z")

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I'm deploying to a new server, all my node-red flows; Is it possible to install missing node types automatically? Or is there a way similar to installing npm packages, where it finds what modules are needed and install…

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## [Math add to a buffer number](https://discourse.nodered.org/t/math-add-to-a-buffer-number/49490)

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**Author:** [@zamzon](https://discourse.nodered.org/u/zamzon)\
**Replies:** 3\
**Last updated:** [8 August 2021 19:35 UTC](https://discourse.nodered.org/t/math-add-to-a-buffer-number/49490 "2021-08-08T19:35:58Z")

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I have this payload that I need to add with 1, but i cant get it working. Can someone help? var askno = msg.dynet\[5\] ; msg.askno = askno ; msg.askno1 = askno + 1; return msg;

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## [HTTP Request "Error: socket hang up"](https://discourse.nodered.org/t/http-request-error-socket-hang-up/8834)

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**Author:** [@binary](https://discourse.nodered.org/u/binary)\
**Replies:** 16\
**Last updated:** [8 August 2021 17:56 UTC](https://discourse.nodered.org/t/http-request-error-socket-hang-up/8834 "2021-08-08T17:56:01Z")

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Hi, Short version of the problem: I am sending a URL to an http request node to control my air conditioning, but node red returns, "Error: socket hang up". I know the URL is valid, because when pasted into a browser, i…

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## [Change node propery from directly from "function"](https://discourse.nodered.org/t/change-node-propery-from-directly-from-function/49169)

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**Author:** [@Comawhite54](https://discourse.nodered.org/u/Comawhite54)\
**Replies:** 19\
**Last updated:** [8 August 2021 16:12 UTC](https://discourse.nodered.org/t/change-node-propery-from-directly-from-function/49169 "2021-08-08T16:12:47Z")

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Hello all, Rather than using the node "Change" I would like to type directly the change command (set msg.payload) in my already existing javascript function node. Is it possible? Otherwise, it means that after my funct…

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## [Find and count number of equal in array](https://discourse.nodered.org/t/find-and-count-number-of-equal-in-array/49460)

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**Author:** [@zamzon](https://discourse.nodered.org/u/zamzon)\
**Replies:** 5\
**Last updated:** [8 August 2021 15:16 UTC](https://discourse.nodered.org/t/find-and-count-number-of-equal-in-array/49460 "2021-08-08T15:16:53Z")

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Hi I need to count the numbers of Offline state in an array I did find a way to use the find command, but it only takes the first one and then stops, how do I find all of them. Next question: how to I insert the numb…

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## [How to output 1-3 KHz using PWM](https://discourse.nodered.org/t/how-to-output-1-3-khz-using-pwm/49455)

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**Author:** [@Fripper](https://discourse.nodered.org/u/Fripper)\
**Replies:** 2\
**Last updated:** [8 August 2021 12:28 UTC](https://discourse.nodered.org/t/how-to-output-1-3-khz-using-pwm/49455 "2021-08-08T12:28:19Z")

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Hi there. Fairly new to Node Red and it works very good so far and is easy to use. I have a project where I want to control a valve using 0-10V. Everything else like reading values, setup dashboard etc works fine. My …

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## [Node-Red Modbus write node's not working](https://discourse.nodered.org/t/node-red-modbus-write-nodes-not-working/49143)

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**Author:** [@rrabbit454](https://discourse.nodered.org/u/rrabbit454)\
**Replies:** 4\
**Last updated:** [8 August 2021 12:30 UTC](https://discourse.nodered.org/t/node-red-modbus-write-nodes-not-working/49143 "2021-08-08T12:30:43Z")

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Hello. In my house i have main automation (lights, heating, Hot water) done using Unipi PLC controller and Home Assistant on Raspberry Pi4 for additional task like camera, tracking and some more other things. Both cont…

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## [Serial in/serial out issues - memory leak?](https://discourse.nodered.org/t/serial-in-serial-out-issues-memory-leak/49430)

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**Author:** [@RaptorUK](https://discourse.nodered.org/u/RaptorUK)\
**Replies:** 8\
**Last updated:** [8 August 2021 06:38 UTC](https://discourse.nodered.org/t/serial-in-serial-out-issues-memory-leak/49430 "2021-08-08T06:38:58Z")

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Hi folks, 5 Aug 22:10:48 - \[info\] Node-RED version: v1.3.5 5 Aug 22:10:48 - \[info\] Node.js version: v12.22.1 5 Aug 22:10:48 - \[info\] Linux 5.10.17-v7+ arm LE 5 Aug 22:10:49 - \[info\] Loading palette nodes 5 Aug 22:10:54…

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## [Display Arduino readings via node red](https://discourse.nodered.org/t/display-arduino-readings-via-node-red/49425)

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**Author:** [@mustafa](https://discourse.nodered.org/u/mustafa)\
**Replies:** 11\
**Last updated:** [7 August 2021 20:33 UTC](https://discourse.nodered.org/t/display-arduino-readings-via-node-red/49425 "2021-08-07T20:33:42Z")

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Hi I have a specific code on Arduino to measure analog signal like current and voltage but I need to connect Arduino to raspberry pi 3 to display these readings on ui dashboard Is it possible to do that and how?

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## [Update entry or create it to MariaDB (SQL Database)](https://discourse.nodered.org/t/update-entry-or-create-it-to-mariadb-sql-database/49456)

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**Author:** [@nicedevil](https://discourse.nodered.org/u/nicedevil)\
**Replies:** 4\
**Last updated:** [7 August 2021 18:11 UTC](https://discourse.nodered.org/t/update-entry-or-create-it-to-mariadb-sql-database/49456 "2021-08-07T18:11:08Z")

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Hey guys again, my first issue was solved in an other thread here and to keep it a bit organized I just wanted to make a new thread on my following problem with my sql database. (old thread: Write variables to MariaDB (…

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## [Write variables to MariaDB (SQL Database)](https://discourse.nodered.org/t/write-variables-to-mariadb-sql-database/49452)

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**Author:** [@nicedevil](https://discourse.nodered.org/u/nicedevil)\
**Replies:** 10\
**Last updated:** [7 August 2021 18:05 UTC](https://discourse.nodered.org/t/write-variables-to-mariadb-sql-database/49452 "2021-08-07T18:05:39Z")

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Hey there, I was trying to get my data to a sql database and I'm struggling with the correct syntax. I hope someone can help me out. I'm using this node here: node-red-contrib-stackhero-mysql (node) - Node-RED (nodere…

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## [Retrieve Dynamic value in object](https://discourse.nodered.org/t/retrieve-dynamic-value-in-object/49437)

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**Author:** [@FireWizard52](https://discourse.nodered.org/u/FireWizard52)\
**Replies:** 9\
**Last updated:** [7 August 2021 14:39 UTC](https://discourse.nodered.org/t/retrieve-dynamic-value-in-object/49437 "2021-08-07T14:39:15Z")

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Hi all, I receive from the API "forecast.solar" (see also post Ideas about solar production forecasting) a message as shown in the picture below: I would like to retrieve the date and time or even better to compare …

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## [Creating lists in Sharepoint Online using NodeRed](https://discourse.nodered.org/t/creating-lists-in-sharepoint-online-using-nodered/49438)

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**Author:** [@gdevilliers](https://discourse.nodered.org/u/gdevilliers)\
**Replies:** 1\
**Last updated:** [7 August 2021 13:11 UTC](https://discourse.nodered.org/t/creating-lists-in-sharepoint-online-using-nodered/49438 "2021-08-07T13:11:44Z")

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Hi Guys, I am trying to create a Sharepoint list and the authentication process and amount of options out there has kept me busy for days. Nevermind the complexity obtaining the correct tokens to use the Graph APIs. I ha…

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## [Again: How to find a node](https://discourse.nodered.org/t/again-how-to-find-a-node/49401)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 17\
**Last updated:** [7 August 2021 10:13 UTC](https://discourse.nodered.org/t/again-how-to-find-a-node/49401 "2021-08-07T10:13:17Z")

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I am again confronted with this problem. I want to find MQTT nodes which use a certain broker and change them... Specifically them. So I can't just edit the configuration. How do I do that? Searching for that broker…

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## [File upload sftp](https://discourse.nodered.org/t/file-upload-sftp/49445)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 9\
**Last updated:** [7 August 2021 09:19 UTC](https://discourse.nodered.org/t/file-upload-sftp/49445 "2021-08-07T09:19:44Z")

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Hello! Is it possible to upload a file via FTP?

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## [BBQ webpage that show incoming mqtt messages](https://discourse.nodered.org/t/bbq-webpage-that-show-incoming-mqtt-messages/49403)

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**Author:** [@megamarco83](https://discourse.nodered.org/u/megamarco83)\
**Replies:** 14\
**Last updated:** [7 August 2021 08:16 UTC](https://discourse.nodered.org/t/bbq-webpage-that-show-incoming-mqtt-messages/49403 "2021-08-07T08:16:41Z")

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hi, i'm with nodered on raspberry pi 3 buster. i have some mqtt messages about probes for BBQ like: topic to subscrive =\> domoticz/in messages =\> { "idx" : 256, "nvalue" : 0, "svalue" : "30.4" } { "idx" : 255, "nvalu…

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## [Store msg alone without needing to have excel ,SQLite table just by topic to payload it again to node red when needed](https://discourse.nodered.org/t/store-msg-alone-without-needing-to-have-excel-sqlite-table-just-by-topic-to-payload-it-again-to-node-red-when-needed/49398)

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**Author:** [@badr\_al\_moragab](https://discourse.nodered.org/u/badr_al_moragab)\
**Replies:** 39\
**Last updated:** [7 August 2021 00:45 UTC](https://discourse.nodered.org/t/store-msg-alone-without-needing-to-have-excel-sqlite-table-just-by-topic-to-payload-it-again-to-node-red-when-needed/49398 "2021-08-07T00:45:21Z")

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Hello guys. I need your help to solve this problem. I'm running node red from my PC and I'm using node red to calculate and count the payment on my brother store. I'm really happy that node red is on my life it helps m…

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## [Unable to install sqlite node](https://discourse.nodered.org/t/unable-to-install-sqlite-node/49440)

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**Author:** [@MJS](https://discourse.nodered.org/u/MJS)\
**Replies:** 1\
**Last updated:** [6 August 2021 23:04 UTC](https://discourse.nodered.org/t/unable-to-install-sqlite-node/49440 "2021-08-06T23:04:52Z")

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I keep getting this error when trying to install the sqlite node. I'm running node-red with Home Assistant. ----------------------------------------------------------- 2021-08-06T22:31:43.329Z Install : node-red-node-sq…

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## [Split and Join Objects](https://discourse.nodered.org/t/split-and-join-objects/49432)

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**Author:** [@mafify](https://discourse.nodered.org/u/mafify)\
**Replies:** 5\
**Last updated:** [6 August 2021 21:39 UTC](https://discourse.nodered.org/t/split-and-join-objects/49432 "2021-08-06T21:39:25Z")

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Hello, I am trying to inject two JSON Object messages with an rbe to block repeated message. The rbe blocks only single ID's so I split them, then joined them with the parts.key and then passed them through rbe. But it's…

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## [How to reset the Filter (old RBE) node?](https://discourse.nodered.org/t/how-to-reset-the-filter-old-rbe-node/49431)

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**Author:** [@finch6](https://discourse.nodered.org/u/finch6)\
**Replies:** 5\
**Last updated:** [6 August 2021 18:09 UTC](https://discourse.nodered.org/t/how-to-reset-the-filter-old-rbe-node/49431 "2021-08-06T18:09:20Z")

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Hi everyone... Not sure if this is a bug or my stupidity :man\_shrugging:t3: Probably the latter... In the Node info in Node-red, it says you can pass a msg.reset to reset the filter node. I tried it, but I can't get i…

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## [Logging using Winston and Papertrail](https://discourse.nodered.org/t/logging-using-winston-and-papertrail/49428)

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**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\
**Replies:** 1\
**Last updated:** [6 August 2021 17:48 UTC](https://discourse.nodered.org/t/logging-using-winston-and-papertrail/49428 "2021-08-06T17:48:08Z")

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hi i have NR into ibm and heroku cloud so i need edit logging in settings.js to send all debug console to my account in papertrail but i cant do it any help please

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## [HTTPS request fails on 2.0.5 but worked on 1.3.4](https://discourse.nodered.org/t/https-request-fails-on-2-0-5-but-worked-on-1-3-4/49348)

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**Author:** [@SteveHiner](https://discourse.nodered.org/u/SteveHiner)\
**Replies:** 9\
**Last updated:** [6 August 2021 16:09 UTC](https://discourse.nodered.org/t/https-request-fails-on-2-0-5-but-worked-on-1-3-4/49348 "2021-08-06T16:09:59Z")

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I tried up upgrade to 2.0.5 last night and it went fairly well but not perfectly. I'm still a bit of a NodeRed newbie (though not a programming newbie) and I was hoping you could help me figure out what's wrong. My most…

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## [TypeError: Cannot read property 'forEach' of undefined](https://discourse.nodered.org/t/typeerror-cannot-read-property-foreach-of-undefined/47953)

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**Author:** [@AngelMx3](https://discourse.nodered.org/u/AngelMx3)\
**Replies:** 19\
**Last updated:** [6 August 2021 15:35 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-foreach-of-undefined/47953 "2021-08-06T15:35:11Z")

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Can someone help me, I get this and it won't let me start the server.

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## [Search in a Json](https://discourse.nodered.org/t/search-in-a-json/49358)

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**Author:** [@zamzon](https://discourse.nodered.org/u/zamzon)\
**Replies:** 7\
**Last updated:** [6 August 2021 14:31 UTC](https://discourse.nodered.org/t/search-in-a-json/49358 "2021-08-06T14:31:08Z")

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Hi I need to make a search in a Json to find a number, and then return an other number, i did try to make a little flow to explane my quest. my json is converted from a xml and imported from a file, but this is not in …

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## [Monitoring of two nodered instances possible?](https://discourse.nodered.org/t/monitoring-of-two-nodered-instances-possible/49420)

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**Author:** [@quito96](https://discourse.nodered.org/u/quito96)\
**Replies:** 3\
**Last updated:** [6 August 2021 14:16 UTC](https://discourse.nodered.org/t/monitoring-of-two-nodered-instances-possible/49420 "2021-08-06T14:16:16Z")

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Hi, Two days ago one of my Nodered instances crashed, unfortunately I noticed it way too late. Is it possible that Nodered instances located on two different computers monitor each other? Any ideas? BR Quito

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## [Unable to start node-red](https://discourse.nodered.org/t/unable-to-start-node-red/19073)

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**Author:** [@g.sakshi997](https://discourse.nodered.org/u/g.sakshi997)\
**Replies:** 20\
**Last updated:** [3 October 2020 06:49 UTC](https://discourse.nodered.org/t/unable-to-start-node-red/19073 "2020-10-03T06:49:31Z")

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Hi all, I have been facing an issue in starting node-red and am unable to figure out why is it happening. The following is the error that it throws whenever i start node-red. I hope you can help me out. Welcome to Node…

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