# Latest

**URL:** https://discourse.nodered.org/latest.md?page=900

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

**Page:** 901

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## [Returning group height and width (node-red-dashboard)?](https://discourse.nodered.org/t/returning-group-height-and-width-node-red-dashboard/39895)

<div class="topic-metadata">

**Author:** [@lizzardguki](https://discourse.nodered.org/u/lizzardguki)\
**Replies:** 3\
**Last updated:** [27 January 2021 21:18 UTC](https://discourse.nodered.org/t/returning-group-height-and-width-node-red-dashboard/39895 "2021-01-27T21:18:56Z")

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Is it possible to use the ui\_template node to get a group size? I found this StackOverflow post but I am not seeing it work, at least not on firefox... Is there a proper way to do it?

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## [Build rate limit into function node code?](https://discourse.nodered.org/t/build-rate-limit-into-function-node-code/39881)

<div class="topic-metadata">

**Author:** [@JohnnyPicnic](https://discourse.nodered.org/u/JohnnyPicnic)\
**Replies:** 2\
**Last updated:** [27 January 2021 21:06 UTC](https://discourse.nodered.org/t/build-rate-limit-into-function-node-code/39881 "2021-01-27T21:06:36Z")

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Is it possible to add the rate limit into the function node so that all the code is in one node? This is what I have now: \[{"id":"1d6988c5.b577e7","type":"debug","z":"5aa7d621.d84518","name":"","active":true,"tosidebar…

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## [Setting up a tcp socket on specific port](https://discourse.nodered.org/t/setting-up-a-tcp-socket-on-specific-port/39893)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 7\
**Last updated:** [27 January 2021 20:15 UTC](https://discourse.nodered.org/t/setting-up-a-tcp-socket-on-specific-port/39893 "2021-01-27T20:15:35Z")

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Hi, I have a server which emits continuous messages on port xx. I have made a python program to listen and list all messages coming from that server, though a tcp socket (AF\_INET). How can I make the same on node-red? …

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## [Need help to sort a long json file from my API](https://discourse.nodered.org/t/need-help-to-sort-a-long-json-file-from-my-api/39891)

<div class="topic-metadata">

**Author:** [@funhall](https://discourse.nodered.org/u/funhall)\
**Replies:** 0\
**Last updated:** [27 January 2021 19:09 UTC](https://discourse.nodered.org/t/need-help-to-sort-a-long-json-file-from-my-api/39891 "2021-01-27T19:09:47Z")

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Can someone pleasse help me out how to sort this json I get from my api. I need it put in to firebase with Company(title), address, longitude and latitude. Sorted like this: I am new to Node-red but think it is amas…

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## [Copy of a project export import](https://discourse.nodered.org/t/copy-of-a-project-export-import/39845)

<div class="topic-metadata">

**Author:** [@pvklink](https://discourse.nodered.org/u/pvklink)\
**Replies:** 0\
**Last updated:** [27 January 2021 09:02 UTC](https://discourse.nodered.org/t/copy-of-a-project-export-import/39845 "2021-01-27T09:02:26Z")

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I have a very strange situation with projects. I have a a lot off flows, nodes, submodules so i made an export of my project with export. I created an new project and imported the export. So far so good. i accepted all…

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## [Loop node reminder](https://discourse.nodered.org/t/loop-node-reminder/39784)

<div class="topic-metadata">

**Author:** [@Marty1982](https://discourse.nodered.org/u/Marty1982)\
**Replies:** 15\
**Last updated:** [27 January 2021 18:22 UTC](https://discourse.nodered.org/t/loop-node-reminder/39784 "2021-01-27T18:22:03Z")

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Hi all! I want to loop a node when i make a certain choice. And i want to get a new notification within 24 hours or so to remind me again. Now i have this. \[{"id":"ecac18b5.46a7e8","type":"switch","z":"97634444.95c118…

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## [Node-red and air purifier 3h](https://discourse.nodered.org/t/node-red-and-air-purifier-3h/39889)

<div class="topic-metadata">

**Author:** [@arybek](https://discourse.nodered.org/u/arybek)\
**Replies:** 0\
**Last updated:** [27 January 2021 18:21 UTC](https://discourse.nodered.org/t/node-red-and-air-purifier-3h/39889 "2021-01-27T18:21:34Z")

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For several days I have been trying to program mi air purifier 3h in node-red. Almost everything works, the only annoying thing is that every minute the device beeps and sets the fan speed to the same - the check conditi…

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## [Avoiding race condition in flow context?](https://discourse.nodered.org/t/avoiding-race-condition-in-flow-context/35090)

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**Author:** [@Semmu](https://discourse.nodered.org/u/Semmu)\
**Replies:** 6\
**Last updated:** [27 January 2021 17:26 UTC](https://discourse.nodered.org/t/avoiding-race-condition-in-flow-context/35090 "2021-01-27T17:26:51Z")

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Hi folks! I just started using Node-RED and I have a simple question: how can I avoid race conditions while manipulating the flow context? Is there some kind of lock mechanism regarding data stored in the different cont…

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## [New user with newbie interpetation problems](https://discourse.nodered.org/t/new-user-with-newbie-interpetation-problems/39862)

<div class="topic-metadata">

**Author:** [@geotete](https://discourse.nodered.org/u/geotete)\
**Replies:** 10\
**Last updated:** [27 January 2021 17:13 UTC](https://discourse.nodered.org/t/new-user-with-newbie-interpetation-problems/39862 "2021-01-27T17:13:56Z")

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Hi everybody, I'm in this forum for more than a month getting information and solving my problems, but now I stuck with a string problem. I'm using version 1.2.6 of node red in a raspberry Pi 3B+. I found a flow for m…

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## [Node-red-node-arduino not connecting to the configured Arduinos after update](https://discourse.nodered.org/t/node-red-node-arduino-not-connecting-to-the-configured-arduinos-after-update/38505)

<div class="topic-metadata">

**Author:** [@woodlandsolitude](https://discourse.nodered.org/u/woodlandsolitude)\
**Replies:** 32\
**Last updated:** [27 January 2021 15:20 UTC](https://discourse.nodered.org/t/node-red-node-arduino-not-connecting-to-the-configured-arduinos-after-update/38505 "2021-01-27T15:20:47Z")

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I have several Arduinos connected to a Raspberry PI 2. When I update node-red-node-arduino to the recent version 0.3.1 (which isn't that recent), the Nodes do not connect to the configured Arduinos anymore, once I restar…

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## [Set a time in the title bar](https://discourse.nodered.org/t/set-a-time-in-the-title-bar/39819)

<div class="topic-metadata">

**Author:** [@hederson2801](https://discourse.nodered.org/u/hederson2801)\
**Replies:** 7\
**Last updated:** [27 January 2021 14:45 UTC](https://discourse.nodered.org/t/set-a-time-in-the-title-bar/39819 "2021-01-27T14:45:46Z")

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Hello, I am trying to set a time in the titlebar and logo. I got it with this tutorial in this page But when conect in browser tv samsung, the clock gets wrong. Gets 01/31/1969 23:45 for example. Othe devices its very…

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## [Problem getting FFmpeg to convert RSTP to MP4](https://discourse.nodered.org/t/problem-getting-ffmpeg-to-convert-rstp-to-mp4/39867)

<div class="topic-metadata">

**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 7\
**Last updated:** [27 January 2021 14:23 UTC](https://discourse.nodered.org/t/problem-getting-ffmpeg-to-convert-rstp-to-mp4/39867 "2021-01-27T14:23:55Z")

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Over the last 2 days I have been pulling my hair out trying to get my ptz camera to display on dashboard via FFmpeg in exec node and kevinGodell/node-red-contrib-mp4frag and node-red-contrib-ui-mp4frag I have read every…

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## [Store token in "session storage" instead of "local storage"](https://discourse.nodered.org/t/store-token-in-session-storage-instead-of-local-storage/39848)

<div class="topic-metadata">

**Author:** [@mapero](https://discourse.nodered.org/u/mapero)\
**Replies:** 3\
**Last updated:** [27 January 2021 13:28 UTC](https://discourse.nodered.org/t/store-token-in-session-storage-instead-of-local-storage/39848 "2021-01-27T13:28:43Z")

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Hi, we have the requirement, that a user is logged out when closing a site or tab. We already use custom-authentication-tokens, and it works flawless. The only down side is, that node-red stores the token in local stora…

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## [Data from RPI with UART to NR](https://discourse.nodered.org/t/data-from-rpi-with-uart-to-nr/39688)

<div class="topic-metadata">

**Author:** [@Easy4M](https://discourse.nodered.org/u/Easy4M)\
**Replies:** 20\
**Last updated:** [27 January 2021 12:29 UTC](https://discourse.nodered.org/t/data-from-rpi-with-uart-to-nr/39688 "2021-01-27T12:29:55Z")

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Hi, I have little problem with data transfer to NR from RPI. Have installed nodejs serialport and open serial port. I tryed read data use USB and this work perfectly. I want transfer data from Modbus with RPI. I use UAR…

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## [Flow and Global const - Feature Request](https://discourse.nodered.org/t/flow-and-global-const-feature-request/39857)

<div class="topic-metadata">

**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\
**Replies:** 2\
**Last updated:** [27 January 2021 12:01 UTC](https://discourse.nodered.org/t/flow-and-global-const-feature-request/39857 "2021-01-27T12:01:55Z")

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Hi Everyone, I realise that I can declare node scoped const types. may I request that a feature is added that would allow flow, and or global scoped const. It could be by way of the side bar under storage where they c…

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## [Dashboard request for ui\_form to have type "time picker"](https://discourse.nodered.org/t/dashboard-request-for-ui-form-to-have-type-time-picker/39735)

<div class="topic-metadata">

**Author:** [@Louis\_Swart](https://discourse.nodered.org/u/Louis_Swart)\
**Replies:** 1\
**Last updated:** [27 January 2021 11:47 UTC](https://discourse.nodered.org/t/dashboard-request-for-ui-form-to-have-type-time-picker/39735 "2021-01-27T11:47:17Z")

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Hi @dceejay, Thanks for an easy to use dashboard, would like to ask the following: The ui\_text\_input has a mode "time picker" that allows a time to be selected. Would like to have this same "time picker" functionality …

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## [Project mode by tabs/flow?](https://discourse.nodered.org/t/project-mode-by-tabs-flow/39864)

<div class="topic-metadata">

**Author:** [@m4dm4rtig4n](https://discourse.nodered.org/u/m4dm4rtig4n)\
**Replies:** 0\
**Last updated:** [27 January 2021 11:10 UTC](https://discourse.nodered.org/t/project-mode-by-tabs-flow/39864 "2021-01-27T11:10:24Z")

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Hello, I regularly do flows that I share with the community, and I find that the sharing system via import / export is not very practical ... I have set up with a friend a Flow sharing system on github using the Node-RE…

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## [Preloader for POST HTTP Request node](https://discourse.nodered.org/t/preloader-for-post-http-request-node/39856)

<div class="topic-metadata">

**Author:** [@nadeemciit102](https://discourse.nodered.org/u/nadeemciit102)\
**Replies:** 4\
**Last updated:** [27 January 2021 11:07 UTC](https://discourse.nodered.org/t/preloader-for-post-http-request-node/39856 "2021-01-27T11:07:03Z")

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Hi, Do we have any option to show "Please Wait" on dashboard UI while Post request is completing and getting the return msg back. As if we are not letting end user know that request is in process he may think the appli…

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## [Resizing ui\_form in dashboard after 1x1 widget size change](https://discourse.nodered.org/t/resizing-ui-form-in-dashboard-after-1x1-widget-size-change/39852)

<div class="topic-metadata">

**Author:** [@JCLeuvennink](https://discourse.nodered.org/u/JCLeuvennink)\
**Replies:** 1\
**Last updated:** [27 January 2021 09:57 UTC](https://discourse.nodered.org/t/resizing-ui-form-in-dashboard-after-1x1-widget-size-change/39852 "2021-01-27T09:57:13Z")

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Good day I am busy developing a node-red dashboard and I wanted to change the minimum 1x1 widget size for reasons I will not go into now. I changed the 1x1 widget size in the dashboard site settings from 48x48 px to 24x…

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## [Read COM1 Port Data](https://discourse.nodered.org/t/read-com1-port-data/39844)

<div class="topic-metadata">

**Author:** [@vaughan.mcd](https://discourse.nodered.org/u/vaughan.mcd)\
**Replies:** 10\
**Last updated:** [27 January 2021 09:52 UTC](https://discourse.nodered.org/t/read-com1-port-data/39844 "2021-01-27T09:52:39Z")

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I am having trouble getting Node-Red to read data from com1 I have Node-Red setup on docker because I could not get it to work on my windows system with Node.JS Node-Red 1.2.7 node-red-contrib-modbus 5.13.3 I am tr…

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## [Help with making a volume gui widget with no html knowledge](https://discourse.nodered.org/t/help-with-making-a-volume-gui-widget-with-no-html-knowledge/38494)

<div class="topic-metadata">

**Author:** [@9toejack](https://discourse.nodered.org/u/9toejack)\
**Replies:** 25\
**Last updated:** [27 January 2021 07:17 UTC](https://discourse.nodered.org/t/help-with-making-a-volume-gui-widget-with-no-html-knowledge/38494 "2021-01-27T07:17:46Z")

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Hello, i am totally new and learning node-red. i have no programing exp. nor html exp. I'm learning stuff on the fly. so with that any help i can get with my project will be appreciated. however i am not asking for s…

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## [How to export flows.json with MySQL's user and password?](https://discourse.nodered.org/t/how-to-export-flows-json-with-mysqls-user-and-password/39751)

<div class="topic-metadata">

**Author:** [@ChiaChia1114](https://discourse.nodered.org/u/ChiaChia1114)\
**Replies:** 2\
**Last updated:** [27 January 2021 05:48 UTC](https://discourse.nodered.org/t/how-to-export-flows-json-with-mysqls-user-and-password/39751 "2021-01-27T05:48:39Z")

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Hi, exeryone. I have a question about export MySQL's flows.json. When I set all of the config of the node of the MySQL, I export the node's flow.json file. But why can't I export the user and password with json file? Th…

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## [Victron Total Solar](https://discourse.nodered.org/t/victron-total-solar/39830)

<div class="topic-metadata">

**Author:** [@davenrea](https://discourse.nodered.org/u/davenrea)\
**Replies:** 0\
**Last updated:** [26 January 2021 22:26 UTC](https://discourse.nodered.org/t/victron-total-solar/39830 "2021-01-26T22:26:54Z")

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I am trying to get the value of Total Solar out of a Victron system. The value is shown on the page https://vrm.victronenergy.com/installation/ but i can't find it. Can anyone help?

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## [MongoDB filtering](https://discourse.nodered.org/t/mongodb-filtering/39828)

<div class="topic-metadata">

**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 2\
**Last updated:** [26 January 2021 21:56 UTC](https://discourse.nodered.org/t/mongodb-filtering/39828 "2021-01-26T21:56:56Z")

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Hi. Trying to extract data from a mongoDB Database. Have succeeded to extrakt all the data from a database. But it is a lot of data. Can I filter somehow. From the attached picture I want only Objektid that contains "na…

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## [Help converting string to key/value object](https://discourse.nodered.org/t/help-converting-string-to-key-value-object/39636)

<div class="topic-metadata">

**Author:** [@amishra123](https://discourse.nodered.org/u/amishra123)\
**Replies:** 5\
**Last updated:** [26 January 2021 21:25 UTC](https://discourse.nodered.org/t/help-converting-string-to-key-value-object/39636 "2021-01-26T21:25:59Z")

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Hope everyone is well! Was hoping you may be able to help me with this or point me in the right direction! I'm trying to extract data from my emfit QS. I can HTTP GET request it and I get this back in the payload as a …

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## [An alternative to the dashboard](https://discourse.nodered.org/t/an-alternative-to-the-dashboard/39768)

<div class="topic-metadata">

**Author:** [@rosetom99](https://discourse.nodered.org/u/rosetom99)\
**Replies:** 3\
**Last updated:** [26 January 2021 21:17 UTC](https://discourse.nodered.org/t/an-alternative-to-the-dashboard/39768 "2021-01-26T21:17:56Z")

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Hello everyone, I'm working with nodered recently and I really like the dashboard, but now I discovered uibuilder, so I decided to start studying the documentation. I don't have experience with web programming, but I am …

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## [Why would /auth/strategy/callback return a 404](https://discourse.nodered.org/t/why-would-auth-strategy-callback-return-a-404/39816)

<div class="topic-metadata">

**Author:** [@sully](https://discourse.nodered.org/u/sully)\
**Replies:** 2\
**Last updated:** [26 January 2021 20:58 UTC](https://discourse.nodered.org/t/why-would-auth-strategy-callback-return-a-404/39816 "2021-01-26T20:58:50Z")

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I'm using the following adminAuth options (keys and domain removed). Node-Red redirects to cognito, and I am able to login, but when it redirects to node-red its looks like there is no handlers for callback endpoint aut…

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## [Logo in UI title bar on AWS server](https://discourse.nodered.org/t/logo-in-ui-title-bar-on-aws-server/8873)

<div class="topic-metadata">

**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 8\
**Last updated:** [26 January 2021 20:18 UTC](https://discourse.nodered.org/t/logo-in-ui-title-bar-on-aws-server/8873 "2021-01-26T20:18:12Z")

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Hello I am trying to implement my own personal logo and clock in the title bar of my UI dashboard. I have node-red running an AWS EC2 server on ubuntu. I have been reading this thread https://discourse.nodered.org/t/se…

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## [\[New Release\] node-red-contrib-uibuilder - v3.1.3](https://discourse.nodered.org/t/new-release-node-red-contrib-uibuilder-v3-1-3/39277)

<div class="topic-metadata">

**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 26\
**Last updated:** [26 January 2021 20:15 UTC](https://discourse.nodered.org/t/new-release-node-red-contrib-uibuilder-v3-1-3/39277 "2021-01-26T20:15:42Z")

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UPDATE 2021-01-19: Please note that due to problems with npm, uibuilder no longer installs vue and bootstrap-vue for you. You need to install these yourself now as of v3.1.3. #cd \<userDir\> npm install vue@"2.\*" bootstra…

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## [Water alert notify](https://discourse.nodered.org/t/water-alert-notify/39207)

<div class="topic-metadata">

**Author:** [@melrose](https://discourse.nodered.org/u/melrose)\
**Replies:** 16\
**Last updated:** [26 January 2021 19:48 UTC](https://discourse.nodered.org/t/water-alert-notify/39207 "2021-01-26T19:48:03Z")

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Hello following question: i have a water counter that ticks every 0,25 litre. This means if somebody draws water, it will signal 4 times when somebody gets one litre. So now i think of a alert function. if there is a …

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