# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=36

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

**Page:** 37

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## [Variable rate limit](https://discourse.nodered.org/t/variable-rate-limit/97516)

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**Author:** [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Replies:** 4\
**Last updated:** [9 June 2025 18:50 UTC](https://discourse.nodered.org/t/variable-rate-limit/97516 "2025-06-09T18:50:37Z")

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Hi all, Particular problem; I'm running a flow that generates over 200 messages very quickly. The target that receives these messages can easily be overwhelmed due to a number of reasons. To solve this I'm currently u…

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## [How to get a whole new clean start with NR?](https://discourse.nodered.org/t/how-to-get-a-whole-new-clean-start-with-nr/97503)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 14\
**Last updated:** [9 June 2025 11:30 UTC](https://discourse.nodered.org/t/how-to-get-a-whole-new-clean-start-with-nr/97503 "2025-06-09T11:30:54Z")

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Seems I have really made a mess of things and it is only getting worse the more I poke the hornet's nest. In my other thread about SUBFLOWS I found a link to someone who was having a similar problem to me and @xx\_Nexus\_…

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## [Help for http request Node](https://discourse.nodered.org/t/help-for-http-request-node/97507)

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**Author:** [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)\
**Replies:** 2\
**Last updated:** [9 June 2025 10:54 UTC](https://discourse.nodered.org/t/help-for-http-request-node/97507 "2025-06-09T10:54:42Z")

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I try to get this to work. I have a function node sending out a msg.url with a Get Request. If I copy the url directly into the "Http Request Node" in the url field and inject a timestamp, the Get Request gets received …

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## [Help with messages seen at start up](https://discourse.nodered.org/t/help-with-messages-seen-at-start-up/97497)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 5\
**Last updated:** [9 June 2025 01:03 UTC](https://discourse.nodered.org/t/help-with-messages-seen-at-start-up/97497 "2025-06-09T01:03:04Z")

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I'm seeing this when I start NR on a remote machine. GIVEN: I have now removed the world map node. 9 Jun 08:27:27 - \[info\] Stopping flows 9 Jun 08:27:27 - \[info\] Stopped flows 9 Jun 08:27:27 - \[info\] Updated flows 9 J…

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## [I need to upgrade my node.js but can't](https://discourse.nodered.org/t/i-need-to-upgrade-my-node-js-but-cant/97498)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [9 June 2025 00:03 UTC](https://discourse.nodered.org/t/i-need-to-upgrade-my-node-js-but-cant/97498 "2025-06-09T00:03:02Z")

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(Hi again) I've searched, searched and searched. Got nowhere. This is one link I've found: But..... Then I found this thread: and the line: It looks like you have another version installed. Have you previously …

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## [How to identify bad data](https://discourse.nodered.org/t/how-to-identify-bad-data/97485)

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**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 3\
**Last updated:** [8 June 2025 18:05 UTC](https://discourse.nodered.org/t/how-to-identify-bad-data/97485 "2025-06-08T18:05:28Z")

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I use node red to run my heating. I have two sensors hooked to esp8266 running mqtt. I average the readings together. Several weeks ago one sensor quit and the heater went full blast as one sensor was zero and the othe…

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## [How to get global context when in a subflow?](https://discourse.nodered.org/t/how-to-get-global-context-when-in-a-subflow/97476)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [8 June 2025 09:56 UTC](https://discourse.nodered.org/t/how-to-get-global-context-when-in-a-subflow/97476 "2025-06-08T09:56:48Z")

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Sorry folks, I've forgotten this - again. In a subflow, how do I get global context values? Would global.get(" ") still work? I'll be testing this anyway ITMT.

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## [Something interesting I just found. What is this?](https://discourse.nodered.org/t/something-interesting-i-just-found-what-is-this/97474)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 5\
**Last updated:** [8 June 2025 09:23 UTC](https://discourse.nodered.org/t/something-interesting-i-just-found-what-is-this/97474 "2025-06-08T09:23:02Z")

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Luckily I had a VERY recent backup. One of my machines just died again. So I VNC'd into the machine, made another backup, then put the older version stuff in the directory. HOWEVER There was another file in the node-r…

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## [Help with trick for message parsing true/false -\> set/clear](https://discourse.nodered.org/t/help-with-trick-for-message-parsing-true-false-set-clear/97470)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 14\
**Last updated:** [8 June 2025 09:13 UTC](https://discourse.nodered.org/t/help-with-trick-for-message-parsing-true-false-set-clear/97470 "2025-06-08T09:13:17Z")

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I know this is Baby coding for people in the know. Alas I'm not one of those. Problem/scenario: let uv = msg.payload.underVoltage That is a true/false message. :frowning: Downstream, it needs to be human readable. …

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## [APSystems Open API (rest)](https://discourse.nodered.org/t/apsystems-open-api-rest/97454)

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**Author:** [@sjobbe](https://discourse.nodered.org/u/sjobbe)\
**Replies:** 8\
**Last updated:** [7 June 2025 22:29 UTC](https://discourse.nodered.org/t/apsystems-open-api-rest/97454 "2025-06-07T22:29:18Z")

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Hello I'm not that good at programming so I'm askin help here. I'd like to read APSystems API using nodered and that requires calculating a signature for REST API polls. How would one do this in a nodered function node…

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## [Importing Subflows - something not right with sequencing](https://discourse.nodered.org/t/importing-subflows-something-not-right-with-sequencing/97459)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [7 June 2025 21:32 UTC](https://discourse.nodered.org/t/importing-subflows-something-not-right-with-sequencing/97459 "2025-06-07T21:32:22Z")

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Sorry but it is subflows.... my favourite. :wink: I get it that there is MAGIC happening that keeps track of what's going on and so when you import a subflow that is different to the resident one: you get a question …

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## [Problem with nodes when internet not working. Discussion](https://discourse.nodered.org/t/problem-with-nodes-when-internet-not-working-discussion/97453)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [7 June 2025 21:06 UTC](https://discourse.nodered.org/t/problem-with-nodes-when-internet-not-working-discussion/97453 "2025-06-07T21:06:51Z")

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Folks, this is a weird/wild/rogue scenario that just happened to me and was really bad. It is the unexpected things that happen that really test out setup and check if we did everything right. This is one such case whe…

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## [Uibuilder, uib-brand.css and plotly.js](https://discourse.nodered.org/t/uibuilder-uib-brand-css-and-plotly-js/76132)

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**Author:** [@ianh33](https://discourse.nodered.org/u/ianh33)\
**Replies:** 3\
**Last updated:** [7 June 2025 12:21 UTC](https://discourse.nodered.org/t/uibuilder-uib-brand-css-and-plotly-js/76132 "2025-06-07T12:21:09Z")

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I am having trouble displaying a plotly.js graph on a uibuilder page. I don't think this is a uibuilder issue. I think it is css related but given the size of 'uib-brand.css' I am hoping I can get a 'signpost' to help …

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## [What "addon" is it so you can put notes on nodes/groups/etc?](https://discourse.nodered.org/t/what-addon-is-it-so-you-can-put-notes-on-nodes-groups-etc/97455)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [7 June 2025 08:28 UTC](https://discourse.nodered.org/t/what-addon-is-it-so-you-can-put-notes-on-nodes-groups-etc/97455 "2025-06-07T08:28:53Z")

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Sorry folks, just been through the ringer and come out somewhat worse for wear. I remember recently an addon mentioned which allows you to add notes to parts of the flow. A bit like the comments section of an open node…

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## [Subflow last edited dates?](https://discourse.nodered.org/t/subflow-last-edited-dates/97456)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [7 June 2025 08:26 UTC](https://discourse.nodered.org/t/subflow-last-edited-dates/97456 "2025-06-07T08:26:25Z")

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Sorry folks.... I have a lot of subflows and I dropped the ball with what has happened recently. I tirelessly went through a machine (alas: indefinite article) to bring them all up to date. I've forgotten which one. S…

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## [Get Alerts if Node-RED is not running](https://discourse.nodered.org/t/get-alerts-if-node-red-is-not-running/97429)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 7\
**Last updated:** [6 June 2025 20:34 UTC](https://discourse.nodered.org/t/get-alerts-if-node-red-is-not-running/97429 "2025-06-06T20:34:49Z")

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What is the best and easy way (and free) to get automated alerts if the computer i am running node-red is for some reason offline ? I have set up the PC, to reboot automatically after a power failure and node red starts…

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## [Best way to send a posh e-mail](https://discourse.nodered.org/t/best-way-to-send-a-posh-e-mail/97435)

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**Author:** [@acestu](https://discourse.nodered.org/u/acestu)\
**Replies:** 8\
**Last updated:** [6 June 2025 20:01 UTC](https://discourse.nodered.org/t/best-way-to-send-a-posh-e-mail/97435 "2025-06-06T20:01:16Z")

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Hi, I have just used change nodes to put my temperature values into global variables, and managed to get my smtp gmail account working ie sending emails, my goal really is to send an email with a coloured background a p…

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## [Cron json as variables](https://discourse.nodered.org/t/cron-json-as-variables/97222)

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**Author:** [@Herbert](https://discourse.nodered.org/u/Herbert)\
**Replies:** 6\
**Last updated:** [6 June 2025 16:43 UTC](https://discourse.nodered.org/t/cron-json-as-variables/97222 "2025-06-06T16:43:19Z")

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Hello I´m using some cron with fix values. I want to refer to two Dashboard object for both variables toGrid and toSolar to adjust these values easier. How is that possible? Cron field: {"toGrid":20.3,"toSolar":22.0}…

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## [How do I manually version control my Red-Node work in year 2025?](https://discourse.nodered.org/t/how-do-i-manually-version-control-my-red-node-work-in-year-2025/97432)

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**Author:** [@pedro\_uno](https://discourse.nodered.org/u/pedro_uno)\
**Replies:** 10\
**Last updated:** [6 June 2025 10:47 UTC](https://discourse.nodered.org/t/how-do-i-manually-version-control-my-red-node-work-in-year-2025/97432 "2025-06-06T10:47:53Z")

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Hello, I want to know how to manually version control my Red-Node work. Can someone list the files that need to be version controlled to preserve a Node-Red flow? We use both git and svn for different parts of the dev…

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## [Node group in left column disappeared after I installed additional nodes](https://discourse.nodered.org/t/node-group-in-left-column-disappeared-after-i-installed-additional-nodes/97421)

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**Author:** [@nexusnet](https://discourse.nodered.org/u/nexusnet)\
**Replies:** 10\
**Last updated:** [6 June 2025 09:38 UTC](https://discourse.nodered.org/t/node-group-in-left-column-disappeared-after-i-installed-additional-nodes/97421 "2025-06-06T09:38:32Z")

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I'm working with Sequent Microsystems RasPi boards on an RPI4. OS, NR and everything else is up to date. I installed nodes for their 3 relays board yesterday, which showed up as expected in a group named Sequent Microsys…

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## [How can I run example flows provided as JSON snippets?](https://discourse.nodered.org/t/how-can-i-run-example-flows-provided-as-json-snippets/97437)

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**Author:** [@pedro\_uno](https://discourse.nodered.org/u/pedro_uno)\
**Replies:** 2\
**Last updated:** [5 June 2025 22:45 UTC](https://discourse.nodered.org/t/how-can-i-run-example-flows-provided-as-json-snippets/97437 "2025-06-05T22:45:13Z")

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Hello, I have been reading forum posts and I see that answers often contain example flows as JSON snippets. It is a very attractive feature of Node-Red that flows can be shared as clear text but what is the best way to…

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## [Write a monthly temperatures File](https://discourse.nodered.org/t/write-a-monthly-temperatures-file/97308)

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**Author:** [@acestu](https://discourse.nodered.org/u/acestu)\
**Replies:** 25\
**Last updated:** [5 June 2025 10:44 UTC](https://discourse.nodered.org/t/write-a-monthly-temperatures-file/97308 "2025-06-05T10:44:52Z")

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Hi, I have several temperature sensors sending data to gauges on a dashboard, the data is put into a variable in a function node, what i want to do is write a file automatically at the right time of the month with all th…

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## [Sudden severe failure of entire flow on machine](https://discourse.nodered.org/t/sudden-severe-failure-of-entire-flow-on-machine/97428)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [5 June 2025 09:49 UTC](https://discourse.nodered.org/t/sudden-severe-failure-of-entire-flow-on-machine/97428 "2025-06-05T09:49:49Z")

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Hey folks. Bad new where I am: One of my machines now won't run the old NR flow it did a couple of days ago. Situation - bigger picture: RasPi 3B+ running Buster. It is my NTP server, MQTT broker and a WAP. Weirdly,…

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## [Only write to MQTT when value is changed to current value](https://discourse.nodered.org/t/only-write-to-mqtt-when-value-is-changed-to-current-value/97371)

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**Author:** [@node\_red2025](https://discourse.nodered.org/u/node_red2025)\
**Replies:** 14\
**Last updated:** [4 June 2025 15:17 UTC](https://discourse.nodered.org/t/only-write-to-mqtt-when-value-is-changed-to-current-value/97371 "2025-06-04T15:17:39Z")

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I have a two scripts which do calculates and then output to a single MQTT topic. Now externally the controlled machines reload their config also when the MQTT topic is unchanged, just the edit is in itself enough to rel…

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## [MS365 Send email](https://discourse.nodered.org/t/ms365-send-email/97291)

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**Author:** [@keyooo2](https://discourse.nodered.org/u/keyooo2)\
**Replies:** 6\
**Last updated:** [4 June 2025 14:52 UTC](https://discourse.nodered.org/t/ms365-send-email/97291 "2025-06-04T14:52:27Z")

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Hello, What do I need to do on the corporate admin365 side to be able to send emails from a distribution box or emial with a password from server smtp.office365.com "Error: Invalid login: 535 5.7.139 Authentication uns…

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## [Using ILI9341 LCD screen](https://discourse.nodered.org/t/using-ili9341-lcd-screen/97404)

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**Author:** [@kozzen](https://discourse.nodered.org/u/kozzen)\
**Replies:** 3\
**Last updated:** [3 June 2025 21:19 UTC](https://discourse.nodered.org/t/using-ili9341-lcd-screen/97404 "2025-06-03T21:19:01Z")

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I'm using node red ( raspberry pi) to read temperature and control some relais. i want to go a step further and add a lcd touchscreen ILI9341 to see this values. I never used a touchscreen before and i can't find a good…

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## [How to set dynamic environment value to amqp-out node?](https://discourse.nodered.org/t/how-to-set-dynamic-environment-value-to-amqp-out-node/97390)

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**Author:** [@Lin-Pyae](https://discourse.nodered.org/u/Lin-Pyae)\
**Replies:** 1\
**Last updated:** [3 June 2025 07:51 UTC](https://discourse.nodered.org/t/how-to-set-dynamic-environment-value-to-amqp-out-node/97390 "2025-06-03T07:51:23Z")

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I have amqp-out node which has static value for now. But I want to set those values into dynamic values by getting values from global context. Those Host, Port and Vhost fields only accept string value in that node. So,…

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## [Influxdb Install error!](https://discourse.nodered.org/t/influxdb-install-error/97377)

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**Author:** [@acestu](https://discourse.nodered.org/u/acestu)\
**Replies:** 15\
**Last updated:** [2 June 2025 20:38 UTC](https://discourse.nodered.org/t/influxdb-install-error/97377 "2025-06-02T20:38:28Z")

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Hi, I thought I would have a go at installing Influxdb this weekend but it will not install giving the error: : Unsupported system page size I believe it is something to do with how memory is allocated to a page, is t…

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## [Any experience with Flow manager?](https://discourse.nodered.org/t/any-experience-with-flow-manager/97380)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 0\
**Last updated:** [2 June 2025 12:47 UTC](https://discourse.nodered.org/t/any-experience-with-flow-manager/97380 "2025-06-02T12:47:31Z")

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Flow Manager module for node-red node-red-contrib-flow-manager (node) - Node-RED Looks super useful for managing and distributing code in an organized way (instead of having single flows.json). But what makes me hesitat…

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## [Recommended way to extend or compose nodes](https://discourse.nodered.org/t/recommended-way-to-extend-or-compose-nodes/97332)

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**Author:** [@37Rb](https://discourse.nodered.org/u/37Rb)\
**Replies:** 11\
**Last updated:** [2 June 2025 06:09 UTC](https://discourse.nodered.org/t/recommended-way-to-extend-or-compose-nodes/97332 "2025-06-02T06:09:04Z")

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I want to extend or compose nodes to provide a simple user experience for people using them. There appear to be several ways to do it and I'm looking for advice to help prevent me from choosing the wrong one. I would li…

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