# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=111

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

**Page:** 112

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## [How to upload a file using http request](https://discourse.nodered.org/t/how-to-upload-a-file-using-http-request/87737)

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**Author:** [@praveenkumarreddy849](https://discourse.nodered.org/u/praveenkumarreddy849)\
**Replies:** 2\
**Last updated:** [7 May 2024 10:28 UTC](https://discourse.nodered.org/t/how-to-upload-a-file-using-http-request/87737 "2024-05-07T10:28:15Z")

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Hi Community, I'm new to node red and I'm trying to upload a file in the Http request, It is looking different from doing in postman, Any help or guidance would be invaluable

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## [Create a new value from another value](https://discourse.nodered.org/t/create-a-new-value-from-another-value/87768)

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**Author:** [@pierredemay](https://discourse.nodered.org/u/pierredemay)\
**Replies:** 1\
**Last updated:** [7 May 2024 09:17 UTC](https://discourse.nodered.org/t/create-a-new-value-from-another-value/87768 "2024-05-07T09:17:23Z")

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Hello there, This is my object : My goal is to set the value of Numero like this : BCUSA24PR04152024 Keep in mind that the last 8 caracters (04152024) is based on the value of Date. Can someone help me to do this ? …

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## [Convert date format](https://discourse.nodered.org/t/convert-date-format/87755)

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**Author:** [@pierredemay](https://discourse.nodered.org/u/pierredemay)\
**Replies:** 2\
**Last updated:** [7 May 2024 07:55 UTC](https://discourse.nodered.org/t/convert-date-format/87755 "2024-05-07T07:55:15Z")

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Hi there, I would like to know how to convert a date like "4/15/24" into the french date format (15/04/2024). Did someone can help me ? Thank you !

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## [NodeRed compress writes to InfluxDBv2?](https://discourse.nodered.org/t/nodered-compress-writes-to-influxdbv2/87751)

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**Author:** [@Starfoxfs](https://discourse.nodered.org/u/Starfoxfs)\
**Replies:** 4\
**Last updated:** [7 May 2024 07:46 UTC](https://discourse.nodered.org/t/nodered-compress-writes-to-influxdbv2/87751 "2024-05-07T07:46:22Z")

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Hi, is there a way to compress the Writes to InfluxDBv2 with Node-Red ? InfluxDBv2 is faster when using gzip compression to Write Data

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## [How to combine several results?](https://discourse.nodered.org/t/how-to-combine-several-results/87760)

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**Author:** [@2shlee](https://discourse.nodered.org/u/2shlee)\
**Replies:** 0\
**Last updated:** [7 May 2024 03:48 UTC](https://discourse.nodered.org/t/how-to-combine-several-results/87760 "2024-05-07T03:48:27Z")

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The dashboard displays a list of locations stored in mysql, and when you click the location number, the panels of devices in the corresponding location are displayed. The panel displays several data extracted from the p…

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## [NR flows update very slow when \>\> 500 flows](https://discourse.nodered.org/t/nr-flows-update-very-slow-when-500-flows/87687)

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**Author:** [@Dunken](https://discourse.nodered.org/u/Dunken)\
**Replies:** 13\
**Last updated:** [6 May 2024 23:48 UTC](https://discourse.nodered.org/t/nr-flows-update-very-slow-when-500-flows/87687 "2024-05-06T23:48:11Z")

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On a test Node-RED instance we face very slow update-time when we want to update a single flow (we tried /flows and /flow/:id APIs). The deployment of a single flow takes up to 20-30 seconds. We currently have roughly 7…

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## [OPC UA Client Configuration from a custom webpage. {It is not a Issue/Bug}](https://discourse.nodered.org/t/opc-ua-client-configuration-from-a-custom-webpage-it-is-not-a-issue-bug/87745)

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**Author:** [@Animesh](https://discourse.nodered.org/u/Animesh)\
**Replies:** 1\
**Last updated:** [6 May 2024 21:18 UTC](https://discourse.nodered.org/t/opc-ua-client-configuration-from-a-custom-webpage-it-is-not-a-issue-bug/87745 "2024-05-06T21:18:03Z")

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I want to collect Endpoints, Username, and Password from a custom local webpage. From the webpage, the user can add the Endpoint URL and other connectivity details without opening Node-Red dashboard. I want to keep Node-…

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## [Is it possible to open the node-red editor via an url by sending a flow id as a parameter in addition to the access token?](https://discourse.nodered.org/t/is-it-possible-to-open-the-node-red-editor-via-an-url-by-sending-a-flow-id-as-a-parameter-in-addition-to-the-access-token/87581)

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**Author:** [@Fitspade](https://discourse.nodered.org/u/Fitspade)\
**Replies:** 10\
**Last updated:** [6 May 2024 16:02 UTC](https://discourse.nodered.org/t/is-it-possible-to-open-the-node-red-editor-via-an-url-by-sending-a-flow-id-as-a-parameter-in-addition-to-the-access-token/87581 "2024-05-06T16:02:32Z")

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Introduction to the problem: We use the node-red API to display the list of flows in our application. In our application, I would like to open the node-red editor in an iframe when we click on a flow located in this li…

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## [Node-red-contrib-rfxcom segmentation fault](https://discourse.nodered.org/t/node-red-contrib-rfxcom-segmentation-fault/87754)

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**Author:** [@cbartetzko](https://discourse.nodered.org/u/cbartetzko)\
**Replies:** 2\
**Last updated:** [6 May 2024 16:02 UTC](https://discourse.nodered.org/t/node-red-contrib-rfxcom-segmentation-fault/87754 "2024-05-06T16:02:04Z")

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I've added node-red-contrib-rfxcom 2.13 to my Palette in NodeRed (Docker on Raspberry Pi). When trying a simple flow (rfx-sensor to debug) and configuring rfx to /dev/ttyUSB0 my nodered container instantly crashes when…

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## [License for node-red-contrib-mclient-outclient. License not specified in LICENSE.md](https://discourse.nodered.org/t/license-for-node-red-contrib-mclient-outclient-license-not-specified-in-license-md/87668)

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**Author:** [@joeltay](https://discourse.nodered.org/u/joeltay)\
**Replies:** 6\
**Last updated:** [6 May 2024 10:07 UTC](https://discourse.nodered.org/t/license-for-node-red-contrib-mclient-outclient-license-not-specified-in-license-md/87668 "2024-05-06T10:07:03Z")

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Sorry if this question have been answered but I can't seem to find the answer. As mentioned in the title, I'm trying to find the license for this component so that I am able add it in my project. The license.md file on…

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## [How to make an iframe unclickable?](https://discourse.nodered.org/t/how-to-make-an-iframe-unclickable/87731)

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**Author:** [@WP-Rue](https://discourse.nodered.org/u/WP-Rue)\
**Replies:** 4\
**Last updated:** [6 May 2024 07:32 UTC](https://discourse.nodered.org/t/how-to-make-an-iframe-unclickable/87731 "2024-05-06T07:32:54Z")

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In my dashboard I use a simple 30 min inject-node to trigger an iframe-node with the url of a local weatherforecast-widget. Any idea how to inhibit the user to click on this widget? Thanks in advanced.. Rue

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## [Taking a global source 3 digit number split into individual numbers and send IR commands based upon the individual numbers](https://discourse.nodered.org/t/taking-a-global-source-3-digit-number-split-into-individual-numbers-and-send-ir-commands-based-upon-the-individual-numbers/87619)

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**Author:** [@JasonH](https://discourse.nodered.org/u/JasonH)\
**Replies:** 19\
**Last updated:** [5 May 2024 23:24 UTC](https://discourse.nodered.org/t/taking-a-global-source-3-digit-number-split-into-individual-numbers-and-send-ir-commands-based-upon-the-individual-numbers/87619 "2024-05-05T23:24:06Z")

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What I want to do is take a number entered and pass along this number as IR codes to flash a channel change on a Dish receiver with Global Cache'. My question is how do I take the individual numbers 2, 0, 4 in this exam…

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## [New tab when editing groups](https://discourse.nodered.org/t/new-tab-when-editing-groups/87733)

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**Author:** [@Jonathan](https://discourse.nodered.org/u/Jonathan)\
**Replies:** 0\
**Last updated:** [5 May 2024 22:36 UTC](https://discourse.nodered.org/t/new-tab-when-editing-groups/87733 "2024-05-05T22:36:45Z")

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When editing a node or a group in Node-RED in the top right corner there are different tabs, like for example: properties, environment variables and description. Changing between them is done by clicking the icons in the…

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## [How do I configure a flow to give me a prompt, whenever the Serial port is disconnected?](https://discourse.nodered.org/t/how-do-i-configure-a-flow-to-give-me-a-prompt-whenever-the-serial-port-is-disconnected/87726)

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**Author:** [@samyak5](https://discourse.nodered.org/u/samyak5)\
**Replies:** 8\
**Last updated:** [5 May 2024 19:55 UTC](https://discourse.nodered.org/t/how-do-i-configure-a-flow-to-give-me-a-prompt-whenever-the-serial-port-is-disconnected/87726 "2024-05-05T19:55:41Z")

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I'm trying to make a flow that reads data from an arduino's COM port, and then log it to a file and display it on my dashboard. I also want a notification to popup when the device is disconnected, or a serial-related err…

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## [Modbus read not connect](https://discourse.nodered.org/t/modbus-read-not-connect/87697)

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**Author:** [@ThaiMinh120](https://discourse.nodered.org/u/ThaiMinh120)\
**Replies:** 3\
**Last updated:** [5 May 2024 16:10 UTC](https://discourse.nodered.org/t/modbus-read-not-connect/87697 "2024-05-05T16:10:51Z")

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I connect from DDC to IOT2050 by RS485 to COM. Help me.

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## [Fetch failed - no idea!](https://discourse.nodered.org/t/fetch-failed-no-idea/87701)

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**Author:** [@cba-records](https://discourse.nodered.org/u/cba-records)\
**Replies:** 5\
**Last updated:** [5 May 2024 16:03 UTC](https://discourse.nodered.org/t/fetch-failed-no-idea/87701 "2024-05-05T16:03:28Z")

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This might sound like a stupid question but there you go! This is the scenario. I am requesting a list of files from One Drive and then sending this list (about 1000 files) through to a split node. A download of said fi…

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## [Help making datetime conversion more user friendly](https://discourse.nodered.org/t/help-making-datetime-conversion-more-user-friendly/87705)

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**Author:** [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Replies:** 6\
**Last updated:** [5 May 2024 16:01 UTC](https://discourse.nodered.org/t/help-making-datetime-conversion-more-user-friendly/87705 "2024-05-05T16:01:05Z")

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I have a flow to process calendar events from this scrape. It will return a local datetime in the form of YYYY-MM-DD HH:mm:ss. This works for me but limited to "en-US" without modification. Input is ISO let start = ne…

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## [Nr2pico u2if - Python to JS - help WANTED](https://discourse.nodered.org/t/nr2pico-u2if-python-to-js-help-wanted/87706)

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**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\
**Replies:** 2\
**Last updated:** [5 May 2024 09:40 UTC](https://discourse.nodered.org/t/nr2pico-u2if-python-to-js-help-wanted/87706 "2024-05-05T09:40:54Z")

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I believe there would be a need for a direct Raspberry Pi Pico USB \<-\> NoreRed interface: poll Previously I've listed the possibilities here ... and I think the best approach would be: u2if firmware working together dir…

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## [Communicating between Rpi \<-\> Pico via USB](https://discourse.nodered.org/t/communicating-between-rpi-pico-via-usb/85294)

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**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\
**Replies:** 10\
**Last updated:** [5 May 2024 09:33 UTC](https://discourse.nodered.org/t/communicating-between-rpi-pico-via-usb/85294 "2024-05-05T09:33:11Z")

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Is there somewhere a "ready to use" code for Rasptberry Pico boards I could add names or Serial numbers to, than simply upload to multiple pieces, (changing the name / number) plug into any USB of the RPi, or a HUB att…

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## [Displaying data from context object](https://discourse.nodered.org/t/displaying-data-from-context-object/18951)

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**Author:** [@grumpazoid](https://discourse.nodered.org/u/grumpazoid)\
**Replies:** 10\
**Last updated:** [4 May 2024 16:50 UTC](https://discourse.nodered.org/t/displaying-data-from-context-object/18951 "2024-05-04T16:50:22Z")

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Hi. I have a function node and would like to find the value stored in a context object. In this case either 1 or 0. Nothing shows up in the context side panel - I am guessing because I have not stored the value into a …

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## [MSSQL-Plus node behavior change](https://discourse.nodered.org/t/mssql-plus-node-behavior-change/87614)

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**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 5\
**Last updated:** [4 May 2024 14:29 UTC](https://discourse.nodered.org/t/mssql-plus-node-behavior-change/87614 "2024-05-04T14:29:36Z")

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Years ago, I created a flow using MSSQL-Plus to execute a stored procedure that receives 4 inputs. It worked fine for years under Node-RED v2.2.2 and MSSQL-Plus v0.7.3. Now I have moved the flow to a new machine runnin…

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## [Read XLSX files](https://discourse.nodered.org/t/read-xlsx-files/87677)

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**Author:** [@pierredemay](https://discourse.nodered.org/u/pierredemay)\
**Replies:** 2\
**Last updated:** [3 May 2024 19:44 UTC](https://discourse.nodered.org/t/read-xlsx-files/87677 "2024-05-03T19:44:31Z")

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Is that possible to read a XLSX file ?

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## [CSV node discards msg.parts](https://discourse.nodered.org/t/csv-node-discards-msg-parts/87688)

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**Author:** [@christopher-lambe](https://discourse.nodered.org/u/christopher-lambe)\
**Replies:** 2\
**Last updated:** [3 May 2024 17:59 UTC](https://discourse.nodered.org/t/csv-node-discards-msg-parts/87688 "2024-05-03T17:59:57Z")

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Hi, The CSV node will discard the msg.parts if the CSV file is a two liner - header and one data line. The result is that downstream Join nodes error out "Message missing msg.parts property - cannot join in 'auto' mode…

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## [Node-red-node-pi-mcp3008 0.5.2](https://discourse.nodered.org/t/node-red-node-pi-mcp3008-0-5-2/87508)

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**Author:** [@tky27nrt](https://discourse.nodered.org/u/tky27nrt)\
**Replies:** 9\
**Last updated:** [3 May 2024 16:34 UTC](https://discourse.nodered.org/t/node-red-node-pi-mcp3008-0-5-2/87508 "2024-05-03T16:34:43Z")

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That would be a rude question. It seems that the 0.5.2 version is not compatible with the Raspberry Pi 4 hardware. The node does not work. The node run on Raspberry Pi 3 hardware. Is there any plan to update this node…

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## [JSON parse error but URL working in browser](https://discourse.nodered.org/t/json-parse-error-but-url-working-in-browser/87661)

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**Author:** [@Tomtom](https://discourse.nodered.org/u/Tomtom)\
**Replies:** 7\
**Last updated:** [3 May 2024 16:06 UTC](https://discourse.nodered.org/t/json-parse-error-but-url-working-in-browser/87661 "2024-05-03T16:06:01Z")

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Hi everyone, I'm new in Node Red and hope my message was not covered in previous posts. Thank you in advance for your help. When I try to access this URL via the browser I got a JSON in the right format: https://api.so…

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## [MQTT or JSON data to BACnet](https://discourse.nodered.org/t/mqtt-or-json-data-to-bacnet/87600)

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**Author:** [@MecatronicaMADE](https://discourse.nodered.org/u/MecatronicaMADE)\
**Replies:** 1\
**Last updated:** [3 May 2024 13:05 UTC](https://discourse.nodered.org/t/mqtt-or-json-data-to-bacnet/87600 "2024-05-03T13:05:26Z")

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Hi community, Is there any library or method to convert MQTT or JSON format data to BACnet protocol with Node-RED? e.g. receiving sensor data via MQTT and converting or exposing it to a BACnet server from Node-RED. (some…

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## [Displaying Multiple serial entries as separate lines node red](https://discourse.nodered.org/t/displaying-multiple-serial-entries-as-separate-lines-node-red/87683)

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**Author:** [@Boerwors](https://discourse.nodered.org/u/Boerwors)\
**Replies:** 3\
**Last updated:** [3 May 2024 12:36 UTC](https://discourse.nodered.org/t/displaying-multiple-serial-entries-as-separate-lines-node-red/87683 "2024-05-03T12:36:53Z")

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Hi All, huge noob here and i need help. im working towards being able to cast up to 20 voltage readings from an arduino serial print to node red, but want to show them just as separate lines. however i can't seem to get …

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## [Function node - weird date behaviour?](https://discourse.nodered.org/t/function-node-weird-date-behaviour/87672)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 13\
**Last updated:** [3 May 2024 11:32 UTC](https://discourse.nodered.org/t/function-node-weird-date-behaviour/87672 "2024-05-03T11:32:34Z")

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I have a function node with the following: node.warn(new Date(2024, 4, 1)) node.warn(new Date(2024, 4, 1).toJSON()) output: function : (warn) "Wed May 01 2024 00:00:00 GMT+0200 (Central European Summer Time)" functio…

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## [Postgres Notify](https://discourse.nodered.org/t/postgres-notify/87655)

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**Author:** [@warby78](https://discourse.nodered.org/u/warby78)\
**Replies:** 3\
**Last updated:** [3 May 2024 11:19 UTC](https://discourse.nodered.org/t/postgres-notify/87655 "2024-05-03T11:19:47Z")

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I have installed the PG Listen node pg-listen-new There are three parameters on the UI, the node name, the channel to listen to ( this I understand fine), and a text entry "Server" into which I have put the full postgre…

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## ["TypeError: Cannot read properties of undefined (reading )"](https://discourse.nodered.org/t/typeerror-cannot-read-properties-of-undefined-reading/87518)

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**Author:** [@Ouss](https://discourse.nodered.org/u/Ouss)\
**Replies:** 5\
**Last updated:** [3 May 2024 09:41 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-properties-of-undefined-reading/87518 "2024-05-03T09:41:43Z")

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I am new user of Node red and I am working on a project to show random question on dashboard. The user answers by pushing on one of the presented button (True / False) presented on dashborad. When simulating the flow, …

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