# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1210

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

**Page:** 1211

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## [Dashboard client limit](https://discourse.nodered.org/t/dashboard-client-limit/17088)

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**Author:** [@JestingTuna](https://discourse.nodered.org/u/JestingTuna)\
**Replies:** 1\
**Last updated:** [24 October 2019 21:08 UTC](https://discourse.nodered.org/t/dashboard-client-limit/17088 "2019-10-24T21:08:26Z")

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Hello everyone, I want to simply ask: does the node-red dashboard have a limit on how many clients (or instances) can be opened at the same time? If there is none, can I limit how many can one open by the settings for …

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## [In-VPN P2P group messaging system](https://discourse.nodered.org/t/in-vpn-p2p-group-messaging-system/17092)

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**Author:** [@adammo94](https://discourse.nodered.org/u/adammo94)\
**Replies:** 1\
**Last updated:** [24 October 2019 20:35 UTC](https://discourse.nodered.org/t/in-vpn-p2p-group-messaging-system/17092 "2019-10-24T20:35:33Z")

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Hi guys, I would like to make some kind of a messaging bot that can send the data gathered from PLC (I have the data already so that's not a problem) however it would need to run inside of a VPN with no internet access,…

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## [Date Picker -Dashboard question](https://discourse.nodered.org/t/date-picker-dashboard-question/17074)

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**Author:** [@biz](https://discourse.nodered.org/u/biz)\
**Replies:** 6\
**Last updated:** [24 October 2019 18:16 UTC](https://discourse.nodered.org/t/date-picker-dashboard-question/17074 "2019-10-24T18:16:09Z")

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I am using the date picker on a web form. I then proceed to store it into a database. The problem I have it sends the date in msg.payload as "1571826972734" I would like this to be human readable. Looking at the github …

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## [How to do complex event processing using node-red](https://discourse.nodered.org/t/how-to-do-complex-event-processing-using-node-red/17085)

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**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 7\
**Last updated:** [24 October 2019 18:03 UTC](https://discourse.nodered.org/t/how-to-do-complex-event-processing-using-node-red/17085 "2019-10-24T18:03:58Z")

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In node-red how can we do complex event processing. I am using node-red-contrib-cep node for complex event processing , is there any alternative or any simple example on this node-red-contrib-cep node only having example…

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## [Access subflow name like an environment variable?](https://discourse.nodered.org/t/access-subflow-name-like-an-environment-variable/17061)

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**Author:** [@Keeper](https://discourse.nodered.org/u/Keeper)\
**Replies:** 3\
**Last updated:** [24 October 2019 15:08 UTC](https://discourse.nodered.org/t/access-subflow-name-like-an-environment-variable/17061 "2019-10-24T15:08:40Z")

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Hello, maybe I'm missing something here... I've created a subflow with environment variables, which I can set when placing the subflow in the mainflow: In this case I can use ${Test} inside the subflow with no proble…

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## [How to msg object from one flow to otherS?](https://discourse.nodered.org/t/how-to-msg-object-from-one-flow-to-others/17090)

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**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 4\
**Last updated:** [24 October 2019 13:53 UTC](https://discourse.nodered.org/t/how-to-msg-object-from-one-flow-to-others/17090 "2019-10-24T13:53:04Z")

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Hey my friends, I have a message objects (created by pir motion sensors) and want to foraward them to other flows (light switch). My idea was to just take a simple subflow with input and output. But I noticed that the s…

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## [Cannot convert base64 to buffer](https://discourse.nodered.org/t/cannot-convert-base64-to-buffer/17083)

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**Author:** [@YT2310](https://discourse.nodered.org/u/YT2310)\
**Replies:** 1\
**Last updated:** [24 October 2019 12:51 UTC](https://discourse.nodered.org/t/cannot-convert-base64-to-buffer/17083 "2019-10-24T12:51:04Z")

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Hey there, I try to convert a base64 encoded picture to buffer but it does not work. I have no idea why it does not work.. normally the second debug should be a buffer? Or am I just to stupid at the moment?

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## [Dashboard blank after upgrade](https://discourse.nodered.org/t/dashboard-blank-after-upgrade/4343)

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**Author:** [@Mats](https://discourse.nodered.org/u/Mats)\
**Replies:** 12\
**Last updated:** [24 October 2019 11:24 UTC](https://discourse.nodered.org/t/dashboard-blank-after-upgrade/4343 "2019-10-24T11:24:59Z")

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My Dashboard is completely blank since my latest upgrade. Running Dashboard 2.10.0, Node-Red 0.19.4, Node 8.12.0 Can´t find any error messages anywhere in Node-Red. When loading the UI page in Chrome i get the followi…

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## [Detect rising and falling value](https://discourse.nodered.org/t/detect-rising-and-falling-value/16820)

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**Author:** [@Rosenkrantz](https://discourse.nodered.org/u/Rosenkrantz)\
**Replies:** 2\
**Last updated:** [24 October 2019 10:38 UTC](https://discourse.nodered.org/t/detect-rising-and-falling-value/16820 "2019-10-24T10:38:26Z")

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Hello forum Is there somebody how know what node I could use to detect these values on the picture below? It's the temperature for my heat pump and the consumption. I wanna get a message so I can stop the heat pump when…

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## [Searching through an array](https://discourse.nodered.org/t/searching-through-an-array/16828)

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**Author:** [@joepierce88](https://discourse.nodered.org/u/joepierce88)\
**Replies:** 3\
**Last updated:** [24 October 2019 10:34 UTC](https://discourse.nodered.org/t/searching-through-an-array/16828 "2019-10-24T10:34:22Z")

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Hi all, I've done some searching through the forum and I can't seem to figure this out. I'm sending an email message to IBM Watson classifier. It is returning an array object with each sentence individually classified. I…

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## [Node-red, MySql, HTML, and javascript in the same project. How can I associate all together?](https://discourse.nodered.org/t/node-red-mysql-html-and-javascript-in-the-same-project-how-can-i-associate-all-together/16723)

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**Author:** [@Squirrelbd](https://discourse.nodered.org/u/Squirrelbd)\
**Replies:** 3\
**Last updated:** [24 October 2019 10:31 UTC](https://discourse.nodered.org/t/node-red-mysql-html-and-javascript-in-the-same-project-how-can-i-associate-all-together/16723 "2019-10-24T10:31:54Z")

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Hello, I am pretty much new in this awesome platform and I have developed some small projects using Node-red and MySql Database using dashboard. Currently, I am working with a project where, in a custom HTML webpage, I …

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## [Node-red on ubuntu snap everytime restarting because of exception](https://discourse.nodered.org/t/node-red-on-ubuntu-snap-everytime-restarting-because-of-exception/17077)

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**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 1\
**Last updated:** [24 October 2019 09:43 UTC](https://discourse.nodered.org/t/node-red-on-ubuntu-snap-everytime-restarting-because-of-exception/17077 "2019-10-24T09:43:19Z")

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While starting node-red I'm getting below escption and Oct 24 06:58:19 admin node- red.node-red\[9572\]: Welcome to Node-RED Oct 24 06:58:19 admin node-red.node-red\[9572\]: =================== Oct 24 06:58:19 admin node-re…

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## [Flow variables troubles](https://discourse.nodered.org/t/flow-variables-troubles/16593)

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**Author:** [@jlb](https://discourse.nodered.org/u/jlb)\
**Replies:** 26\
**Last updated:** [24 October 2019 09:32 UTC](https://discourse.nodered.org/t/flow-variables-troubles/16593 "2019-10-24T09:32:18Z")

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I have some troubles by using the flow variable. In one case with a javascript that's ok i can have a return of the Flow variable, but on another use case, it doesn't work... this is my flow, the one with the debug mess…

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## [Flow library - info about actions](https://discourse.nodered.org/t/flow-library-info-about-actions/17027)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 14\
**Last updated:** [24 October 2019 09:03 UTC](https://discourse.nodered.org/t/flow-library-info-about-actions/17027 "2019-10-24T09:03:22Z")

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Hi folks, I have a 'déjà vue' effect :woozy\_face: I have repeated following process already so often: I publish a new version of one of my nodes on NPM. I go to the flow library and press the "request refresh" button…

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## [Run a flow when ui called](https://discourse.nodered.org/t/run-a-flow-when-ui-called/17073)

<div class="topic-metadata">

**Author:** [@Laude](https://discourse.nodered.org/u/Laude)\
**Replies:** 2\
**Last updated:** [24 October 2019 07:41 UTC](https://discourse.nodered.org/t/run-a-flow-when-ui-called/17073 "2019-10-24T07:41:30Z")

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Hi, I'd like to run a flow when someone open the ui dashboard ( so call the url : 127.0.0.1:1880/ui ). Is it possible to catch the GET and then Start a flow ? I'am new to node-red and don't really understand the http …

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## [Read modbus RTU from modul digital Intput](https://discourse.nodered.org/t/read-modbus-rtu-from-modul-digital-intput/17007)

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**Author:** [@Riky\_maarif](https://discourse.nodered.org/u/Riky_maarif)\
**Replies:** 2\
**Last updated:** [24 October 2019 01:29 UTC](https://discourse.nodered.org/t/read-modbus-rtu-from-modul-digital-intput/17007 "2019-10-24T01:29:17Z")

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hello there, Can you help me, I have trouble how to display input data in one address or one input data, like the picture below that displayed all inputs.. thanks,, please help me

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## [Generic / Reusable flows](https://discourse.nodered.org/t/generic-reusable-flows/16703)

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**Author:** [@Oozlum](https://discourse.nodered.org/u/Oozlum)\
**Replies:** 8\
**Last updated:** [23 October 2019 22:48 UTC](https://discourse.nodered.org/t/generic-reusable-flows/16703 "2019-10-23T22:48:38Z")

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I'm very new to this and I am currently reading lots of learning resources to get up to speed. One thing I have noticed (and which has me slightly concerned about Node-RED's suitability for me) is that all the examples …

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## [Manage Palette missing after securing site](https://discourse.nodered.org/t/manage-palette-missing-after-securing-site/17065)

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**Author:** [@BigWillow](https://discourse.nodered.org/u/BigWillow)\
**Replies:** 0\
**Last updated:** [23 October 2019 22:10 UTC](https://discourse.nodered.org/t/manage-palette-missing-after-securing-site/17065 "2019-10-23T22:10:18Z")

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Hi there So I have appeared to have lost the Manage Palette option after I secured the site with a login using the AdminAuth section in mysettings.js so assuming its related ? The user I created has "\*" permissions. D…

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## [\[Announce\] node-red-contrib-ui-svg (final beta) UPDATE V1.2.1](https://discourse.nodered.org/t/announce-node-red-contrib-ui-svg-final-beta-update-v1-2-1/16210)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 90\
**Last updated:** [23 October 2019 21:40 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-ui-svg-final-beta-update-v1-2-1/16210 "2019-10-23T21:40:53Z")

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Hi folks, Some time ago I have announced an alpha version of node-red-contrib-ui-svg, to create interactive SVG (vector graphics) drawings in Node-RED: The use cases can vary from a simple round button, to a complex …

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## [Troubleshooting an error on IBM cloud](https://discourse.nodered.org/t/troubleshooting-an-error-on-ibm-cloud/16877)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 11\
**Last updated:** [23 October 2019 20:03 UTC](https://discourse.nodered.org/t/troubleshooting-an-error-on-ibm-cloud/16877 "2019-10-23T20:03:55Z")

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Hi folks, This is a specific question from @rtholl in another discussion, but would like to keep the other discussion focussed on heatmaps ... Summarized: I have create an IBM cloud account and installed the node-red-c…

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## [Cannot show/hide tabs with long name](https://discourse.nodered.org/t/cannot-show-hide-tabs-with-long-name/17054)

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**Author:** [@Andydesjardins](https://discourse.nodered.org/u/Andydesjardins)\
**Replies:** 5\
**Last updated:** [23 October 2019 19:45 UTC](https://discourse.nodered.org/t/cannot-show-hide-tabs-with-long-name/17054 "2019-10-23T19:45:56Z")

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Hello, Is there a limit to the length of a tab name that I can change? I succeeded at hiding a tab with the name of "Lancement de listes de lecture" formatted as "Lancement\_de\_listes\_de\_lecture" but then I cannot show …

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## [CredentialsFile management in v1.0](https://discourse.nodered.org/t/credentialsfile-management-in-v1-0/17001)

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**Author:** [@JpEncausse](https://discourse.nodered.org/u/JpEncausse)\
**Replies:** 3\
**Last updated:** [23 October 2019 18:14 UTC](https://discourse.nodered.org/t/credentialsfile-management-in-v1-0/17001 "2019-10-23T18:14:36Z")

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We are migrating fron Node-RED v0.19 to Node-RED 1.0 Is there a wiki describing some changes about credential management (if any) ? In v 0.19, we used to override the credential file: in settings.js we override defau…

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## [Reset msgs being passed on by delay node in rate limiting mode](https://discourse.nodered.org/t/reset-msgs-being-passed-on-by-delay-node-in-rate-limiting-mode/17055)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 3\
**Last updated:** [23 October 2019 18:04 UTC](https://discourse.nodered.org/t/reset-msgs-being-passed-on-by-delay-node-in-rate-limiting-mode/17055 "2019-10-23T18:04:19Z")

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\[{"id":"48158429.57399c","type":"inject","z":"85a8fc1f.a06b8","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":620,"y":160,"wires":\[\["1ffd7bc4.065bc4"\]\]},…

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## [Lately adding properties on configuration node](https://discourse.nodered.org/t/lately-adding-properties-on-configuration-node/17025)

<div class="topic-metadata">

**Author:** [@francxk](https://discourse.nodered.org/u/francxk)\
**Replies:** 5\
**Last updated:** [23 October 2019 15:59 UTC](https://discourse.nodered.org/t/lately-adding-properties-on-configuration-node/17025 "2019-10-23T15:59:07Z")

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I add latetally (after a httpadmin request) properties on a configuration node. everything is saved on the server part (flow files), but when i m editing again the node configuration, the previous settings are not set. i…

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## [Nodes not showing up in palette, grey outline in manager](https://discourse.nodered.org/t/nodes-not-showing-up-in-palette-grey-outline-in-manager/17041)

<div class="topic-metadata">

**Author:** [@OlafVW](https://discourse.nodered.org/u/OlafVW)\
**Replies:** 16\
**Last updated:** [23 October 2019 14:46 UTC](https://discourse.nodered.org/t/nodes-not-showing-up-in-palette-grey-outline-in-manager/17041 "2019-10-23T14:46:20Z")

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Hey everyone, I recently started working with Node-Red. I decided I wanted to use the node-red-contrib-winccoa module, but when I installed it only a few of the nodes were visible in the palette even though there was th…

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## [Using node-red for RSS / website monitors to replace Huginn](https://discourse.nodered.org/t/using-node-red-for-rss-website-monitors-to-replace-huginn/13765)

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**Author:** [@HeinN](https://discourse.nodered.org/u/HeinN)\
**Replies:** 24\
**Last updated:** [23 October 2019 12:27 UTC](https://discourse.nodered.org/t/using-node-red-for-rss-website-monitors-to-replace-huginn/13765 "2019-10-23T12:27:52Z")

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Greetings together, I write here as I try to transition myself from Huginn to node-red as I found node-red much easier to install while being leaner and multifunctional on the hardware. Problem is, I cannot program and…

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## [Node red editor not loading on IE Edge browser](https://discourse.nodered.org/t/node-red-editor-not-loading-on-ie-edge-browser/17049)

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**Author:** [@Surendra](https://discourse.nodered.org/u/Surendra)\
**Replies:** 2\
**Last updated:** [23 October 2019 11:04 UTC](https://discourse.nodered.org/t/node-red-editor-not-loading-on-ie-edge-browser/17049 "2019-10-23T11:04:24Z")

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Node red editor is working fine on Chrome and Firefox browser, but on IE edge it's throwing an error: "RED" is not defined.

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## [CRON Plus help please](https://discourse.nodered.org/t/cron-plus-help-please/17039)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 11\
**Last updated:** [23 October 2019 10:59 UTC](https://discourse.nodered.org/t/cron-plus-help-please/17039 "2019-10-23T10:59:33Z")

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Hey folks. I am not getting all these fancy tricks with the cronplus node. I sort of do and sort of don't. Although there are examples given, I can't get from them what I want. I am wanting to inject a command to ad…

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## [Error in node "amqp2 in" when getting new messages](https://discourse.nodered.org/t/error-in-node-amqp2-in-when-getting-new-messages/16914)

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**Author:** [@Terry](https://discourse.nodered.org/u/Terry)\
**Replies:** 10\
**Last updated:** [23 October 2019 09:15 UTC](https://discourse.nodered.org/t/error-in-node-amqp2-in-when-getting-new-messages/16914 "2019-10-23T09:15:53Z")

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I got an error message like this, "error: Queue onMessage consumer function returned error: Cannot assign to read only property 'writeQueueSize' of object '#' module=amqp-ts" In my flow, I have a node of "amqp2 in". Thi…

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## [Split JSON string and BASE64 conversion](https://discourse.nodered.org/t/split-json-string-and-base64-conversion/16995)

<div class="topic-metadata">

**Author:** [@easyE4](https://discourse.nodered.org/u/easyE4)\
**Replies:** 22\
**Last updated:** [23 October 2019 08:59 UTC](https://discourse.nodered.org/t/split-json-string-and-base64-conversion/16995 "2019-10-23T08:59:16Z")

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Hello everybody, I am a PLC programmer and the world of Node-Red is completely new to me. I now want to read data from a small controller, which will be provided to me in a JSON format. The format looks like this: msg…

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