# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=200

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

**Page:** 201

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## [Unable to get until node working as intended](https://discourse.nodered.org/t/unable-to-get-until-node-working-as-intended/79289)

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**Author:** [@dan\_moss](https://discourse.nodered.org/u/dan_moss)\
**Replies:** 4\
**Last updated:** [22 June 2023 07:34 UTC](https://discourse.nodered.org/t/unable-to-get-until-node-working-as-intended/79289 "2023-06-22T07:34:35Z")

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I have a flow where i want to turn on a light when the door is opened then motion is detected within 10s the only weird thing is that the microwave sensor doesnt seem to activate the until node and always times out. the…

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## [Run postman collection file](https://discourse.nodered.org/t/run-postman-collection-file/79202)

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**Author:** [@Marty1982](https://discourse.nodered.org/u/Marty1982)\
**Replies:** 4\
**Last updated:** [21 June 2023 16:59 UTC](https://discourse.nodered.org/t/run-postman-collection-file/79202 "2023-06-21T16:59:30Z")

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Hi all! I want to run a postman collection .json file directly from a dashboard. I can upload a json file but then i need to process that file. So far, i have this: I've build a UI dashboard so i can upload a postman …

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## [Someone here who used node-red-contrib-udmx?](https://discourse.nodered.org/t/someone-here-who-used-node-red-contrib-udmx/79271)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 3\
**Last updated:** [21 June 2023 15:43 UTC](https://discourse.nodered.org/t/someone-here-who-used-node-red-contrib-udmx/79271 "2023-06-21T15:43:46Z")

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Hi, thanks for your kind attention, I need to buy an USB adaptor for this module, the module's author declare it should have USB ID 16c0:05dc to work, he posted the picture but unfortunately no the link to buy the right…

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## [Node red to internet with 4G box and openvpn](https://discourse.nodered.org/t/node-red-to-internet-with-4g-box-and-openvpn/16947)

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**Author:** [@cyderbot971](https://discourse.nodered.org/u/cyderbot971)\
**Replies:** 25\
**Last updated:** [21 June 2023 11:00 UTC](https://discourse.nodered.org/t/node-red-to-internet-with-4g-box-and-openvpn/16947 "2023-06-21T11:00:00Z")

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Hello, I want to access to Node Red dashboard over internet. So i have installed a OPENVPN server on a vps host by OVH. Node Red was host on a raspberry pi and connected to internet with 4G box (ref box Huawei flybox) …

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## [Access to Google Calendar](https://discourse.nodered.org/t/access-to-google-calendar/79332)

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**Author:** [@JM69330](https://discourse.nodered.org/u/JM69330)\
**Replies:** 0\
**Last updated:** [21 June 2023 07:29 UTC](https://discourse.nodered.org/t/access-to-google-calendar/79332 "2023-06-21T07:29:37Z")

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I want to access events from my google calendar. I first used the following node 'node-red-contrib-google-oauth-calendar'. I am following instructions to create the credentials using (https://console.cloud.google.com/) …

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## [Is it possible to use my flow as a backend for a phone app?](https://discourse.nodered.org/t/is-it-possible-to-use-my-flow-as-a-backend-for-a-phone-app/79309)

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**Author:** [@tgottie](https://discourse.nodered.org/u/tgottie)\
**Replies:** 5\
**Last updated:** [20 June 2023 23:13 UTC](https://discourse.nodered.org/t/is-it-possible-to-use-my-flow-as-a-backend-for-a-phone-app/79309 "2023-06-20T23:13:25Z")

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So im working on an OEE/MES program and have made some significant advancements, even have a user interface now that allows users to edit running configs and see their changes made to specific information nodes in live t…

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## [Make a payload go to 0 if not updated](https://discourse.nodered.org/t/make-a-payload-go-to-0-if-not-updated/79330)

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**Author:** [@Faust](https://discourse.nodered.org/u/Faust)\
**Replies:** 2\
**Last updated:** [20 June 2023 21:29 UTC](https://discourse.nodered.org/t/make-a-payload-go-to-0-if-not-updated/79330 "2023-06-20T21:29:54Z")

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I have a payload i need to reset to 0, if it is not updated under 5 seconds. Im sure this is something basic im missing but if someone could help, that would be great

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## [API: Install Flows and Modules automated via API Requests](https://discourse.nodered.org/t/api-install-flows-and-modules-automated-via-api-requests/78962)

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**Author:** [@hinrich](https://discourse.nodered.org/u/hinrich)\
**Replies:** 3\
**Last updated:** [20 June 2023 18:42 UTC](https://discourse.nodered.org/t/api-install-flows-and-modules-automated-via-api-requests/78962 "2023-06-20T18:42:32Z")

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Hey Node-Red Admins, I try some Node-Red automation on installing flows and modules via Admin API where I need your help. Actually I can load a preset of flows via post /flows api method. The the flows are installed bu…

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## [How to change font size of Table Data in Node Red?](https://discourse.nodered.org/t/how-to-change-font-size-of-table-data-in-node-red/79252)

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**Author:** [@techylax](https://discourse.nodered.org/u/techylax)\
**Replies:** 7\
**Last updated:** [20 June 2023 15:26 UTC](https://discourse.nodered.org/t/how-to-change-font-size-of-table-data-in-node-red/79252 "2023-06-20T15:26:07Z")

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Hello everyone, I'm new to Node-RED and I'm currently facing a challenge with adjusting the font size in my table data. The HMI UI I'm working on lacks optimization, and I've made several attempts to resolve this issue …

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## [Beginer help, parse and convert a CSV payload](https://discourse.nodered.org/t/beginer-help-parse-and-convert-a-csv-payload/79320)

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**Author:** [@Faust](https://discourse.nodered.org/u/Faust)\
**Replies:** 3\
**Last updated:** [20 June 2023 15:08 UTC](https://discourse.nodered.org/t/beginer-help-parse-and-convert-a-csv-payload/79320 "2023-06-20T15:08:23Z")

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Hello all, im brand new to Node-Red and I already have a project where im talking to a external device over serial, upon connection, i get the following repeating pattern. each item, separated by comma - is a engine va…

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## [Importing the latest file(s) from a file folder into Node-RED](https://discourse.nodered.org/t/importing-the-latest-file-s-from-a-file-folder-into-node-red/79307)

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**Author:** [@gettmad](https://discourse.nodered.org/u/gettmad)\
**Replies:** 7\
**Last updated:** [20 June 2023 14:41 UTC](https://discourse.nodered.org/t/importing-the-latest-file-s-from-a-file-folder-into-node-red/79307 "2023-06-20T14:41:11Z")

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I am currently working with only one file where I am using the 'Read File' node to access it however the application I am dealing with requires me to automatically update the file every 6 hours. The file will have an alt…

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## [Why my global.get undefined](https://discourse.nodered.org/t/why-my-global-get-undefined/79315)

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**Author:** [@brianbrbr](https://discourse.nodered.org/u/brianbrbr)\
**Replies:** 4\
**Last updated:** [20 June 2023 13:50 UTC](https://discourse.nodered.org/t/why-my-global-get-undefined/79315 "2023-06-20T13:50:32Z")

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I got w1, w2, w3 in function 1, show at debug 9 why I get undefined value w1, w2 in function 2 , but get the w3 value function 1 code: global.set(\["w1", "w2", "w3"\], \[msg.w1, msg.w2, msg.w3\]); return msg; function 2…

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## [Node-red 3.0 problem](https://discourse.nodered.org/t/node-red-3-0-problem/79316)

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**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 1\
**Last updated:** [20 June 2023 11:59 UTC](https://discourse.nodered.org/t/node-red-3-0-problem/79316 "2023-06-20T11:59:35Z")

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I install node-red v3.0.2 and I haven't javascript function like length ect.

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## [Using express-openid-connect in httpNodeMiddleware for authenticating through Auth0 leaves req.oidc empty](https://discourse.nodered.org/t/using-express-openid-connect-in-httpnodemiddleware-for-authenticating-through-auth0-leaves-req-oidc-empty/79305)

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**Author:** [@mpolling](https://discourse.nodered.org/u/mpolling)\
**Replies:** 4\
**Last updated:** [20 June 2023 09:49 UTC](https://discourse.nodered.org/t/using-express-openid-connect-in-httpnodemiddleware-for-authenticating-through-auth0-leaves-req-oidc-empty/79305 "2023-06-20T09:49:27Z")

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I am trying to use Auth0 for authentication of endpoints in my flow. As far as I can see, this requires httpNodeMiddleware. Passport-auth0 refers to express-openid-connect, so I am trying to use that. I have managed to …

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## [Node-red default install location](https://discourse.nodered.org/t/node-red-default-install-location/79245)

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**Author:** [@Aivaras1](https://discourse.nodered.org/u/Aivaras1)\
**Replies:** 8\
**Last updated:** [20 June 2023 08:03 UTC](https://discourse.nodered.org/t/node-red-default-install-location/79245 "2023-06-20T08:03:06Z")

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Hello, I am trying to install node-red on ASUS tinkerboard. It uses Debian 10. I am using this command: bash \<(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered) …

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## [Check whether an user input is a valid date or not](https://discourse.nodered.org/t/check-whether-an-user-input-is-a-valid-date-or-not/79298)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 3\
**Last updated:** [19 June 2023 22:32 UTC](https://discourse.nodered.org/t/check-whether-an-user-input-is-a-valid-date-or-not/79298 "2023-06-19T22:32:13Z")

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I have a telegram bot which connects to my node-red and triggers a flow which generates a report. for it to work correctly, i need the user to always input the date format in YYYY-MM-DD format, when the user enters corre…

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## [Loading nodes 36/37](https://discourse.nodered.org/t/loading-nodes-36-37/79301)

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**Author:** [@fathom](https://discourse.nodered.org/u/fathom)\
**Replies:** 1\
**Last updated:** [19 June 2023 14:57 UTC](https://discourse.nodered.org/t/loading-nodes-36-37/79301 "2023-06-19T14:57:12Z")

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Hi all, I have embedded node-red within node js app. I have fallowed the instructions of Embedding into an existing app : Node-RED, I was even able to access the embedded node red for some time, i even developed some cu…

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## [Simulate a modbus tcp server and feed registers](https://discourse.nodered.org/t/simulate-a-modbus-tcp-server-and-feed-registers/78763)

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**Author:** [@Cyber](https://discourse.nodered.org/u/Cyber)\
**Replies:** 11\
**Last updated:** [19 June 2023 12:50 UTC](https://discourse.nodered.org/t/simulate-a-modbus-tcp-server-and-feed-registers/78763 "2023-06-19T12:50:56Z")

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hello, until now I had a complete fronius environment, since yesterday I have a panel-based microinverter (hoymiles) and would like to give the fronius environment the data via modbus tcp. there is a project which simu…

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## [Cannot display flow.set/flow.get message](https://discourse.nodered.org/t/cannot-display-flow-set-flow-get-message/79239)

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**Author:** [@Loveflowersx](https://discourse.nodered.org/u/Loveflowersx)\
**Replies:** 26\
**Last updated:** [19 June 2023 07:21 UTC](https://discourse.nodered.org/t/cannot-display-flow-set-flow-get-message/79239 "2023-06-19T07:21:36Z")

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Hi everyone, I have an email input node and I want to save the value stored in flow.set and then display it with flow.get Function 1 var email1 = msg.payload; flow.set('email1',msg.payload); return msg; Functi…

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## [How can I show the chart from my data?](https://discourse.nodered.org/t/how-can-i-show-the-chart-from-my-data/79294)

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**Author:** [@mszeta](https://discourse.nodered.org/u/mszeta)\
**Replies:** 12\
**Last updated:** [19 June 2023 08:03 UTC](https://discourse.nodered.org/t/how-can-i-show-the-chart-from-my-data/79294 "2023-06-19T08:03:25Z")

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Hello, Everyone. I'm happy to know this amazing forum. I'm stuck in showing node-red dashboard chart from my mysql database; Database changed mysql\> show tables; +------------------------+ | Tables\_in\_water\_sensor …

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## [Ffmpeg node - Args with Array](https://discourse.nodered.org/t/ffmpeg-node-args-with-array/79293)

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**Author:** [@allacmc](https://discourse.nodered.org/u/allacmc)\
**Replies:** 1\
**Last updated:** [19 June 2023 02:32 UTC](https://discourse.nodered.org/t/ffmpeg-node-args-with-array/79293 "2023-06-19T02:32:08Z")

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Open a topic to ask a simple question about the ffmpeg node by dear @kevinGodell . I need to pass these parameters through a URL because I'm going to send this data via a global variable. Does this node allow this chan…

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## [RTSP CAMS with Dasboard NODE-RED](https://discourse.nodered.org/t/rtsp-cams-with-dasboard-node-red/79278)

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**Author:** [@allacmc](https://discourse.nodered.org/u/allacmc)\
**Replies:** 8\
**Last updated:** [19 June 2023 01:31 UTC](https://discourse.nodered.org/t/rtsp-cams-with-dasboard-node-red/79278 "2023-06-19T01:31:53Z")

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I decided to open a new topic to ask for help with a project I need. I need to place CCTV security cameras using the RSTP protocol on the NODE-RED dashboard. I read quite a topic that has here in the forum. But after g…

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## [Create input to node](https://discourse.nodered.org/t/create-input-to-node/79194)

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**Author:** [@azxo1](https://discourse.nodered.org/u/azxo1)\
**Replies:** 10\
**Last updated:** [19 June 2023 00:25 UTC](https://discourse.nodered.org/t/create-input-to-node/79194 "2023-06-19T00:25:34Z")

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Hello everyone! Could someone help me? The attached js code works on the dashboard for clicking, but I want to start it with "start"-"stop" in the payload. I already tried, but it doesn't work. I have already given it t…

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## [How to make the worlmap marker popup display persistently](https://discourse.nodered.org/t/how-to-make-the-worlmap-marker-popup-display-persistently/79287)

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**Author:** [@ThibautRuy](https://discourse.nodered.org/u/ThibautRuy)\
**Replies:** 1\
**Last updated:** [18 June 2023 22:48 UTC](https://discourse.nodered.org/t/how-to-make-the-worlmap-marker-popup-display-persistently/79287 "2023-06-18T22:48:30Z")

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I would like to keep my marker popup open once clicked and closed when I click somewhere else again. How can I do that? At the moment, the popup closes by itself after a few seconds.

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## [HTTP get format for UK Met Office API](https://discourse.nodered.org/t/http-get-format-for-uk-met-office-api/79255)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 8\
**Last updated:** [18 June 2023 19:25 UTC](https://discourse.nodered.org/t/http-get-format-for-uk-met-office-api/79255 "2023-06-18T19:25:42Z")

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Can someone advise me how to structure msg to access the UK Met Office DataPoint API? The base URL is https://api-metoffice.apiconnect.ibmcloud.com/v0/forecasts/point/hourly' Required parameters are (I think) 'x-ibm-cl…

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## [How to store fields of arrays into InfluxDB using batch node? What formating function should I need?](https://discourse.nodered.org/t/how-to-store-fields-of-arrays-into-influxdb-using-batch-node-what-formating-function-should-i-need/79011)

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**Author:** [@mkdthanga](https://discourse.nodered.org/u/mkdthanga)\
**Replies:** 13\
**Last updated:** [18 June 2023 16:12 UTC](https://discourse.nodered.org/t/how-to-store-fields-of-arrays-into-influxdb-using-batch-node-what-formating-function-should-i-need/79011 "2023-06-18T16:12:05Z")

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I have the followiing payload with fields of arrays: {"timestamp":1686127509414, "topic":"NodeID;ns=3;s=\\"V20Reg\\".\\"Pos\\"", "payload":\[{"measurement":"V20RegPos", "fields":\[ {"rcpNbr":0,"stVisu":0,"batchNbr":0,"key":0,…

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## [A simple question about how to call "Select from a list of options" in a js file](https://discourse.nodered.org/t/a-simple-question-about-how-to-call-select-from-a-list-of-options-in-a-js-file/79281)

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**Author:** [@Angin](https://discourse.nodered.org/u/Angin)\
**Replies:** 0\
**Last updated:** [18 June 2023 13:46 UTC](https://discourse.nodered.org/t/a-simple-question-about-how-to-call-select-from-a-list-of-options-in-a-js-file/79281 "2023-06-18T13:46:03Z")

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How to call the select from a list of options in a js file? This is the HTML file: \<script type="text/javascript"\> RED.nodes.registerType('testnode', { category: 'output', color: '#006738', …

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## [How to listen for windows events?](https://discourse.nodered.org/t/how-to-listen-for-windows-events/79274)

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**Author:** [@LoganAC34](https://discourse.nodered.org/u/LoganAC34)\
**Replies:** 8\
**Last updated:** [18 June 2023 11:02 UTC](https://discourse.nodered.org/t/how-to-listen-for-windows-events/79274 "2023-06-18T11:02:21Z")

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Hi! I'm new to Node-RED and transitioning from EventGhost. I'm trying to rebuild some scripts I had in EventGhost in Node-RED, but I can't figure out a way to listen for windows events. I searched the forum, but couldn't…

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## [Singleton Node concept](https://discourse.nodered.org/t/singleton-node-concept/79270)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 5\
**Last updated:** [18 June 2023 02:14 UTC](https://discourse.nodered.org/t/singleton-node-concept/79270 "2023-06-18T02:14:28Z")

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Hi There! Quick question concerning the singleton pattern - is there a best-practice for having singleton nodes? I.e. nodes that can only be included once in a project and/or flow? I have no specific use-case, just a t…

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## [How to store adc value and add the next value to it every second to get a 1 minute total for calculation](https://discourse.nodered.org/t/how-to-store-adc-value-and-add-the-next-value-to-it-every-second-to-get-a-1-minute-total-for-calculation/79265)

<div class="topic-metadata">

**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 2\
**Last updated:** [17 June 2023 18:12 UTC](https://discourse.nodered.org/t/how-to-store-adc-value-and-add-the-next-value-to-it-every-second-to-get-a-1-minute-total-for-calculation/79265 "2023-06-17T18:12:02Z")

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Here is what I have now \[ { "id": "3ec696660ec8b9b4", "type": "ncd-ads1115", "z": "f672d0ac69fd5b97", "name": "ADC", "connection": "f4775f0f8553a862", "addr": "72", …

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