# Latest

**URL:** https://discourse.nodered.org/latest.md?page=275

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

**Page:** 276

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## [Node-red version 16.0.0 lost all flows](https://discourse.nodered.org/t/node-red-version-16-0-0-lost-all-flows/82878)

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**Author:** [@kerontide](https://discourse.nodered.org/u/kerontide)\
**Replies:** 2\
**Last updated:** [15 November 2023 11:55 UTC](https://discourse.nodered.org/t/node-red-version-16-0-0-lost-all-flows/82878 "2023-11-15T11:55:34Z")

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Hello, good morning, I just update to the nodered version 16.0.0 and I lost all flows, all is empty, do you know how an update can remove all flows? is any way to recover it? thanks in advance.

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## [How to Change the Background Color of a Group in Node-RED Dashboard Based on Test Results?](https://discourse.nodered.org/t/how-to-change-the-background-color-of-a-group-in-node-red-dashboard-based-on-test-results/82867)

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**Author:** [@ElectronB](https://discourse.nodered.org/u/ElectronB)\
**Replies:** 1\
**Last updated:** [15 November 2023 10:43 UTC](https://discourse.nodered.org/t/how-to-change-the-background-color-of-a-group-in-node-red-dashboard-based-on-test-results/82867 "2023-11-15T10:43:03Z")

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Hello everyone, I'm currently working on a project in Node-RED where I have built a functional tester for electronic components. The Node-RED dashboard displays the status of 8 different electronic components. I would l…

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## [Secure individual nodes](https://discourse.nodered.org/t/secure-individual-nodes/82821)

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**Author:** [@04116](https://discourse.nodered.org/u/04116)\
**Replies:** 1\
**Last updated:** [15 November 2023 09:52 UTC](https://discourse.nodered.org/t/secure-individual-nodes/82821 "2023-11-15T09:52:50Z")

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Hi all, We are developing application for home automation. We try to using node-red for automation flow configure now. For devices, rooms in the house. We mapping to nodes and groups in node-red (automate, via api call…

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## [Node-red suddenly doesn't start anymore after a BSOD](https://discourse.nodered.org/t/node-red-suddenly-doesnt-start-anymore-after-a-bsod/82847)

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**Author:** [@difedef](https://discourse.nodered.org/u/difedef)\
**Replies:** 5\
**Last updated:** [15 November 2023 09:37 UTC](https://discourse.nodered.org/t/node-red-suddenly-doesnt-start-anymore-after-a-bsod/82847 "2023-11-15T09:37:22Z")

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Hello everybody, I have Node-red installed globally under my user folder. I have set it up with NSSM as a service and worked like a charm for months. I was working yesterday and trying to mess around new speech\_to\_tex…

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## [Node-red-context-monitor: A node to monitor a Node-RED context](https://discourse.nodered.org/t/node-red-context-monitor-a-node-to-monitor-a-node-red-context/82555)

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**Author:** [@ralphwetzel](https://discourse.nodered.org/u/ralphwetzel)\
**Replies:** 39\
**Last updated:** [15 November 2023 06:52 UTC](https://discourse.nodered.org/t/node-red-context-monitor-a-node-to-monitor-a-node-red-context/82555 "2023-11-15T06:52:39Z")

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Recently we had an exchange on the options to emit a msg from a node that had no output terminals ... and of course wasn't designed to support such a use case. This node yet facilitated a function like interface; send() …

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## [Modbus read in two differents unitId](https://discourse.nodered.org/t/modbus-read-in-two-differents-unitid/82838)

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**Author:** [@fprouvez](https://discourse.nodered.org/u/fprouvez)\
**Replies:** 0\
**Last updated:** [13 November 2023 18:27 UTC](https://discourse.nodered.org/t/modbus-read-in-two-differents-unitid/82838 "2023-11-13T18:27:44Z")

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hello everyone and thank you in advance to those who will read my question. sorry for my level of English but I'm a little French. i have sone troubles with modbus serial in node-red. i can read separatly in two diff…

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## [Alarm log is not possible](https://discourse.nodered.org/t/alarm-log-is-not-possible/82848)

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**Author:** [@Tomi](https://discourse.nodered.org/u/Tomi)\
**Replies:** 4\
**Last updated:** [15 November 2023 01:23 UTC](https://discourse.nodered.org/t/alarm-log-is-not-possible/82848 "2023-11-15T01:23:38Z")

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Hello I use a translator It was created to keep a record when an error occurs. I'm testing with Time Staff. There is no record below A new text file needs to be created, but an error message appears saying the file …

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## [Allow adding headers to WebSocket client?](https://discourse.nodered.org/t/allow-adding-headers-to-websocket-client/82842)

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**Author:** [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Replies:** 9\
**Last updated:** [14 November 2023 21:22 UTC](https://discourse.nodered.org/t/allow-adding-headers-to-websocket-client/82842 "2023-11-14T21:22:21Z")

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So... I have just needed to manually code up a web socket client function node, in order to pass custom headers (i.e bearer token) to a WebSocket server I was surprised this is not already allowed. As per guidelines, …

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## [RBE question and problem installing](https://discourse.nodered.org/t/rbe-question-and-problem-installing/82859)

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**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 2\
**Last updated:** [14 November 2023 17:25 UTC](https://discourse.nodered.org/t/rbe-question-and-problem-installing/82859 "2023-11-14T17:25:59Z")

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I want to block a message unless it changes, quick search of forum says RBE should work. When I go to palette manager and search for RBE it gives me a node ver .050 from 2 years and 10 months ago. If I try to install it …

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## [Serial node red raspberry pi/arduino](https://discourse.nodered.org/t/serial-node-red-raspberry-pi-arduino/82858)

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**Author:** [@Mecatix](https://discourse.nodered.org/u/Mecatix)\
**Replies:** 0\
**Last updated:** [14 November 2023 15:59 UTC](https://discourse.nodered.org/t/serial-node-red-raspberry-pi-arduino/82858 "2023-11-14T15:59:21Z")

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Hi, I'm looking for a solution, I'm serial communicating back and forth between Node Red and an Arduino via a Raspberry Pi based API USB port. My Arduino UNO serves as a fast input board for two encoders. Via serial co…

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## [How to propagate UnitId to multiple Modbus Read Nodes?](https://discourse.nodered.org/t/how-to-propagate-unitid-to-multiple-modbus-read-nodes/81889)

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**Author:** [@Stomachbuzz](https://discourse.nodered.org/u/Stomachbuzz)\
**Replies:** 6\
**Last updated:** [14 November 2023 15:48 UTC](https://discourse.nodered.org/t/how-to-propagate-unitid-to-multiple-modbus-read-nodes/81889 "2023-11-14T15:48:08Z")

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I'm trying to build an interactive dashboard for commissioning multiple Modbus devices that are identical. I want to display several read-only values to the dashboard, as well as allow the user to read and write to cert…

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## [Can any one help with a more elegant way of me extracting the data I need from a JSON string](https://discourse.nodered.org/t/can-any-one-help-with-a-more-elegant-way-of-me-extracting-the-data-i-need-from-a-json-string/82335)

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**Author:** [@Purclewan](https://discourse.nodered.org/u/Purclewan)\
**Replies:** 11\
**Last updated:** [14 November 2023 14:11 UTC](https://discourse.nodered.org/t/can-any-one-help-with-a-more-elegant-way-of-me-extracting-the-data-i-need-from-a-json-string/82335 "2023-11-14T14:11:42Z")

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\[{"cid":"PWER","data":\[{"1697909589000":14934}\],"sid":"663404","units":"W","age":1},{"cid":"PWER\_GAC","data":\[{"\[{"cid":"PWER","data":\[{"1697909589000":14934}\],"sid":"663404","units":"W","age":1},{"cid":"PWER\_GAC","data"…

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## [How can I disable the "review changes" confirmation in nodered](https://discourse.nodered.org/t/how-can-i-disable-the-review-changes-confirmation-in-nodered/82853)

<div class="topic-metadata">

**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 3\
**Last updated:** [14 November 2023 13:13 UTC](https://discourse.nodered.org/t/how-can-i-disable-the-review-changes-confirmation-in-nodered/82853 "2023-11-14T13:13:42Z")

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Basically I have a flow that will just simply disable specific nodeflow (TAB) on my nodered. The flow works perfect but what happen is everytime I deploy that, it always ask me to review the changes. I don't want to rev…

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## [Same Node\_modules directory for multiple instances of node-red in a PC](https://discourse.nodered.org/t/same-node-modules-directory-for-multiple-instances-of-node-red-in-a-pc/82784)

<div class="topic-metadata">

**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 9\
**Last updated:** [14 November 2023 09:34 UTC](https://discourse.nodered.org/t/same-node-modules-directory-for-multiple-instances-of-node-red-in-a-pc/82784 "2023-11-14T09:34:32Z")

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How can I use same node\_modules directory to use the contrib nodes in separate instances of node-red. I have 3 instances of node-red running in a PC as windows service, by using NSSM. the only issue i am facing is th…

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## [Node-red-node-serialport port selection](https://discourse.nodered.org/t/node-red-node-serialport-port-selection/82651)

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**Author:** [@yhur](https://discourse.nodered.org/u/yhur)\
**Replies:** 18\
**Last updated:** [14 November 2023 06:43 UTC](https://discourse.nodered.org/t/node-red-node-serialport-port-selection/82651 "2023-11-14T06:43:04Z")

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When the node-red starts, the flow(program) picks up the hard-coded serial ports and open them. But when a device re-connects after disconnecting for any reason, it may be possible the port number change, but the end use…

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## [Nodos-Telegram-iOS](https://discourse.nodered.org/t/nodos-telegram-ios/82841)

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**Author:** [@Pangea](https://discourse.nodered.org/u/Pangea)\
**Replies:** 2\
**Last updated:** [13 November 2023 19:49 UTC](https://discourse.nodered.org/t/nodos-telegram-ios/82841 "2023-11-13T19:49:40Z")

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Alguien me puede ayudar necesito hacer uso de los nodos para telegram Estoy trabajando desde MAC

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## [Entering a global variable specification into settings.js](https://discourse.nodered.org/t/entering-a-global-variable-specification-into-settings-js/82811)

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**Author:** [@xytsrm](https://discourse.nodered.org/u/xytsrm)\
**Replies:** 18\
**Last updated:** [13 November 2023 19:36 UTC](https://discourse.nodered.org/t/entering-a-global-variable-specification-into-settings-js/82811 "2023-11-13T19:36:00Z")

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I've been successful in entering a global function in settings.js under functionGlobalContext: {}. So far I have not been able to create a global variable in settings.js; that node.js is happy with. Where do you put it a…

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## [How to connect to cloud hiveMQ broker?](https://discourse.nodered.org/t/how-to-connect-to-cloud-hivemq-broker/82830)

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**Author:** [@viniciusleite](https://discourse.nodered.org/u/viniciusleite)\
**Replies:** 18\
**Last updated:** [13 November 2023 17:04 UTC](https://discourse.nodered.org/t/how-to-connect-to-cloud-hivemq-broker/82830 "2023-11-13T17:04:23Z")

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How to connect to cloud hiveMQ broker? I've tried something and it worked, but now it isn't working anymore. Thanks in advance for helping.

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## [UI not showing when I enter URL](https://discourse.nodered.org/t/ui-not-showing-when-i-enter-url/82810)

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**Author:** [@arniepodo](https://discourse.nodered.org/u/arniepodo)\
**Replies:** 15\
**Last updated:** [13 November 2023 15:34 UTC](https://discourse.nodered.org/t/ui-not-showing-when-i-enter-url/82810 "2023-11-13T15:34:52Z")

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I have Node red v3.1 installed on my Rpi. I have a flow that deploys successfully. However, when I try to access the ui via 192.168.x.x:1880/ui, nothing shows up. Just a blank webpage and the tab at the top of the brows…

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## [Node-red throwing error "cannot set properties of undefined (setting 'mode')" when starting](https://discourse.nodered.org/t/node-red-throwing-error-cannot-set-properties-of-undefined-setting-mode-when-starting/82813)

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**Author:** [@viniciusleite](https://discourse.nodered.org/u/viniciusleite)\
**Replies:** 6\
**Last updated:** [13 November 2023 15:21 UTC](https://discourse.nodered.org/t/node-red-throwing-error-cannot-set-properties-of-undefined-setting-mode-when-starting/82813 "2023-11-13T15:21:19Z")

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I am trying to connect to the pins of an Arduino Uno. The Firmata Standard example has been uploaded to Arduino Uno. Here's the message that is thrown when the error occurs: Thanks in advance for helping.

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## [Auto-Pull GitHub project (API / CLI...)](https://discourse.nodered.org/t/auto-pull-github-project-api-cli/82827)

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**Author:** [@rFond](https://discourse.nodered.org/u/rFond)\
**Replies:** 8\
**Last updated:** [13 November 2023 15:17 UTC](https://discourse.nodered.org/t/auto-pull-github-project-api-cli/82827 "2023-11-13T15:17:41Z")

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Hi, It's possible to use Node Red API to execute a project pull ? My idea would be to have a recurring task that performs a pull of my Git project every day for exemple. Thanks for your help.

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## [Hi, i am trying to decypher web push notification in function node, with no luck](https://discourse.nodered.org/t/hi-i-am-trying-to-decypher-web-push-notification-in-function-node-with-no-luck/82804)

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**Author:** [@igisho](https://discourse.nodered.org/u/igisho)\
**Replies:** 1\
**Last updated:** [13 November 2023 14:55 UTC](https://discourse.nodered.org/t/hi-i-am-trying-to-decypher-web-push-notification-in-function-node-with-no-luck/82804 "2023-11-13T14:55:17Z")

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Recieving push notification in http in node. and than using this code to decypher with no luck for now... const headers = msg.req.headers; const keys = JSON.parse(msg.payload); // Extracting headers const salt = Buffer…

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## [Flow context not being saved over NR restarts](https://discourse.nodered.org/t/flow-context-not-being-saved-over-nr-restarts/82829)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [13 November 2023 14:53 UTC](https://discourse.nodered.org/t/flow-context-not-being-saved-over-nr-restarts/82829 "2023-11-13T14:53:58Z")

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I've got this in my settings.js /\*\* Context Storage \* The following property can be used to enable context storage. The configuration \* provided here will enable file-based context that flushes to disk …

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## [\[Feature Request\]Add ability to use JSONata and/or $Env in Change node](https://discourse.nodered.org/t/feature-request-add-ability-to-use-jsonata-and-or-env-in-change-node/82824)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 19\
**Last updated:** [13 November 2023 12:21 UTC](https://discourse.nodered.org/t/feature-request-add-ability-to-use-jsonata-and-or-env-in-change-node/82824 "2023-11-13T12:21:45Z")

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I've recently been trying to make a flow work with parameters (instead of writing a function) but I can't use Change nodes this way The switch node alllows for JSONata and $env but not the change node

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## [Not sure if there is a BMS templet](https://discourse.nodered.org/t/not-sure-if-there-is-a-bms-templet/82819)

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**Author:** [@jonty](https://discourse.nodered.org/u/jonty)\
**Replies:** 1\
**Last updated:** [13 November 2023 09:50 UTC](https://discourse.nodered.org/t/not-sure-if-there-is-a-bms-templet/82819 "2023-11-13T09:50:13Z")

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Good day all, I am trying to find out if it is possible to build a dashboard and flows for a Building Management System or Smart Home Systems and/or is there a public project that can be built on. I am new to Node-RED s…

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## [Node-ui-table: Inconsistent load behavior, leading to changing no. of columns on refresh](https://discourse.nodered.org/t/node-ui-table-inconsistent-load-behavior-leading-to-changing-no-of-columns-on-refresh/81749)

<div class="topic-metadata">

**Author:** [@moppelg](https://discourse.nodered.org/u/moppelg)\
**Replies:** 26\
**Last updated:** [13 November 2023 09:12 UTC](https://discourse.nodered.org/t/node-ui-table-inconsistent-load-behavior-leading-to-changing-no-of-columns-on-refresh/81749 "2023-11-13T09:12:39Z")

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Hello together, thank you for providing a great user experience with node-red. I am using node-red for a smart home dashboard. For this I like also to embed a view of my upcoming calendar entries. However, after receiv…

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## [Problem with node-red-contrib-senec-cloud has ERROR 302](https://discourse.nodered.org/t/problem-with-node-red-contrib-senec-cloud-has-error-302/82159)

<div class="topic-metadata">

**Author:** [@nobs](https://discourse.nodered.org/u/nobs)\
**Replies:** 2\
**Last updated:** [13 November 2023 09:06 UTC](https://discourse.nodered.org/t/problem-with-node-red-contrib-senec-cloud-has-error-302/82159 "2023-11-13T09:06:02Z")

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without making any changes the senec cloud note has ERROR 302. Has anyone the same problem?

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## [Are subflow environment variables global or local to the subflow?](https://discourse.nodered.org/t/are-subflow-environment-variables-global-or-local-to-the-subflow/82805)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 3\
**Last updated:** [12 November 2023 21:18 UTC](https://discourse.nodered.org/t/are-subflow-environment-variables-global-or-local-to-the-subflow/82805 "2023-11-12T21:18:31Z")

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If I use environment vars as subflow parameters, are the env vars global to the instance or just the subflow (or are they even global global!)

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## [Problem with custom button using template node and dynamic label](https://discourse.nodered.org/t/problem-with-custom-button-using-template-node-and-dynamic-label/82799)

<div class="topic-metadata">

**Author:** [@NodeRookie](https://discourse.nodered.org/u/NodeRookie)\
**Replies:** 10\
**Last updated:** [12 November 2023 16:10 UTC](https://discourse.nodered.org/t/problem-with-custom-button-using-template-node-and-dynamic-label/82799 "2023-11-12T16:10:25Z")

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Hello, I've an issue with a custom button showing a value received from the msg.value. I created a very basic flow to show the problem. I created 2 buttons, on the left hand side using the button node and on the right …

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## [Function-node access to a global-function in Settings.js](https://discourse.nodered.org/t/function-node-access-to-a-global-function-in-settings-js/82791)

<div class="topic-metadata">

**Author:** [@xytsrm](https://discourse.nodered.org/u/xytsrm)\
**Replies:** 7\
**Last updated:** [12 November 2023 16:01 UTC](https://discourse.nodered.org/t/function-node-access-to-a-global-function-in-settings-js/82791 "2023-11-12T16:01:53Z")

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I'm trying to access a global function I created in the Settings.js file. I placed my function "testGlobalFunction" in Settings.js under "functionGlobalContext:": functionGlobalContext: { // os:require('os'…

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