# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=506

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

**Page:** 507

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## [Noob question for array to get avalue](https://discourse.nodered.org/t/noob-question-for-array-to-get-avalue/49881)

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**Author:** [@MHagreis](https://discourse.nodered.org/u/MHagreis)\
**Replies:** 3\
**Last updated:** [19 August 2021 16:28 UTC](https://discourse.nodered.org/t/noob-question-for-array-to-get-avalue/49881 "2021-08-19T16:28:54Z")

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i like to get from this the yellow fields the value into a new node how do i split this into separate values via json? how do i do that i missing some json understanding

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## [Scalability Node-Red](https://discourse.nodered.org/t/scalability-node-red/18294)

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**Author:** [@dtuiot](https://discourse.nodered.org/u/dtuiot)\
**Replies:** 14\
**Last updated:** [19 August 2021 14:10 UTC](https://discourse.nodered.org/t/scalability-node-red/18294 "2021-08-19T14:10:03Z")

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We have been working with node-red for some time, where we have wired 10's of devices. This have worked like a charm, but we're going deploy more devices now. We're deploying thousands of devices, but we're in doubt whet…

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## [Struggling with sending HTTP requests to the "http in" node](https://discourse.nodered.org/t/struggling-with-sending-http-requests-to-the-http-in-node/49846)

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**Author:** [@tom\_holzwurm](https://discourse.nodered.org/u/tom_holzwurm)\
**Replies:** 9\
**Last updated:** [19 August 2021 12:21 UTC](https://discourse.nodered.org/t/struggling-with-sending-http-requests-to-the-http-in-node/49846 "2021-08-19T12:21:51Z")

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Hi colleagues, I'm currently learning web development based on HTTP/JS. Node-RED: 1.2.9 My current problem/challenge is the following: I want to transfer a simple JSON object from HTTP/JS code in my browser via the h…

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## [How to start the execution of functionality in node red using the api?](https://discourse.nodered.org/t/how-to-start-the-execution-of-functionality-in-node-red-using-the-api/49855)

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**Author:** [@Snoz3f](https://discourse.nodered.org/u/Snoz3f)\
**Replies:** 21\
**Last updated:** [19 August 2021 10:20 UTC](https://discourse.nodered.org/t/how-to-start-the-execution-of-functionality-in-node-red-using-the-api/49855 "2021-08-19T10:20:21Z")

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Hello. How can i start execution in node red from another app with node-red api? RED.nodes.startFlow?

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## [UIBuilder Using URL variables](https://discourse.nodered.org/t/uibuilder-using-url-variables/49625)

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**Author:** [@Ashfaak](https://discourse.nodered.org/u/Ashfaak)\
**Replies:** 3\
**Last updated:** [19 August 2021 10:11 UTC](https://discourse.nodered.org/t/uibuilder-using-url-variables/49625 "2021-08-19T10:11:56Z")

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Hi. Is it possible to use variables of this form when using UIBuilder? https://example.com/uibuilder/?site=abc I would like to create QR codes at a few different locations and would like the location 'auto-filled' with…

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## [Problem with multiple line chart](https://discourse.nodered.org/t/problem-with-multiple-line-chart/49900)

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**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\
**Replies:** 2\
**Last updated:** [19 August 2021 08:33 UTC](https://discourse.nodered.org/t/problem-with-multiple-line-chart/49900 "2021-08-19T08:33:06Z")

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Is there any way to "lock" a topic into a certain line? The behaviour I observed is that, after rebooting the server (for maintenance/update purposes, for instance), the line colours are assigned to first come/first ser…

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## [Writing data to Indluxdb batch node](https://discourse.nodered.org/t/writing-data-to-indluxdb-batch-node/48460)

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**Author:** [@PAT](https://discourse.nodered.org/u/PAT)\
**Replies:** 28\
**Last updated:** [19 August 2021 07:15 UTC](https://discourse.nodered.org/t/writing-data-to-indluxdb-batch-node/48460 "2021-08-19T07:15:00Z")

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Hi all please help with my data format problem. i am pulling data from modbus tcp then splitting data in to seperate flows. then i give it a topic and scale the number afterwards. i now need to join all flows and send t…

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## [Send information only by pressing a button "Speichern"](https://discourse.nodered.org/t/send-information-only-by-pressing-a-button-speichern/49863)

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**Author:** [@ClemensSimon](https://discourse.nodered.org/u/ClemensSimon)\
**Replies:** 3\
**Last updated:** [19 August 2021 06:23 UTC](https://discourse.nodered.org/t/send-information-only-by-pressing-a-button-speichern/49863 "2021-08-19T06:23:08Z")

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Dear Node-Red´s I do have a problem to hand off informations only if a "Store" button is pressed. My flow looks like this: \[{"id":"46f3fadcb97268ab","type":"ui\_button","z":"84622180359efd62","name":"Speichern","gro…

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## [What is settings.js flowFilePretty supposed to do?](https://discourse.nodered.org/t/what-is-settings-js-flowfilepretty-supposed-to-do/49890)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 5\
**Last updated:** [19 August 2021 00:49 UTC](https://discourse.nodered.org/t/what-is-settings-js-flowfilepretty-supposed-to-do/49890 "2021-08-19T00:49:45Z")

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My flows\_hostname.json file is just one very long line. In settings.js it says: // To enabled pretty-printing of the flow within the flow file, set the following // property to true: // flowFilePretty: true, But if…

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## [Credential management](https://discourse.nodered.org/t/credential-management/49845)

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**Author:** [@Ostro](https://discourse.nodered.org/u/Ostro)\
**Replies:** 12\
**Last updated:** [18 August 2021 16:36 UTC](https://discourse.nodered.org/t/credential-management/49845 "2021-08-18T16:36:45Z")

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Hi, I doesn't understand how the credential works in node-red. I read about the flow.cred.son, the setting file to choose the hash key and so on. But i didn't find an simple explanation to store a credential and use i…

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## [How to use node s7 to show pie chart](https://discourse.nodered.org/t/how-to-use-node-s7-to-show-pie-chart/49866)

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**Author:** [@nusto](https://discourse.nodered.org/u/nusto)\
**Replies:** 6\
**Last updated:** [18 August 2021 15:49 UTC](https://discourse.nodered.org/t/how-to-use-node-s7-to-show-pie-chart/49866 "2021-08-18T15:49:39Z")

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hello , I have data from S7 and I want to show on pie chart in dashboard but it didn't showed. I don't know how to use pie chart to show my data from my S7. please

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## [Apexcharts how to add js scripts](https://discourse.nodered.org/t/apexcharts-how-to-add-js-scripts/49825)

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**Author:** [@nerevar](https://discourse.nodered.org/u/nerevar)\
**Replies:** 8\
**Last updated:** [18 August 2021 12:41 UTC](https://discourse.nodered.org/t/apexcharts-how-to-add-js-scripts/49825 "2021-08-18T12:41:34Z")

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Hi, I've been trying to make apexcharts to work on the dashboard via template + ui\_template nodes. The chart works only the first time after deploy, afterwards it does not. Heres the flow: \[{"id":"320dd3f4.959a0c","t…

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## [How secure is opening up a public endpoint](https://discourse.nodered.org/t/how-secure-is-opening-up-a-public-endpoint/49810)

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**Author:** [@CybrPimp](https://discourse.nodered.org/u/CybrPimp)\
**Replies:** 3\
**Last updated:** [18 August 2021 12:11 UTC](https://discourse.nodered.org/t/how-secure-is-opening-up-a-public-endpoint/49810 "2021-08-18T12:11:55Z")

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We want to be able to open up a public endpoint (HTTP In Node) to be a webhook to receive post data from Zapier, but I want to make sure it is secure. You can get a list of the Zapier server IP list but this is constant…

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## [Collect just a number in a flow](https://discourse.nodered.org/t/collect-just-a-number-in-a-flow/49847)

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**Author:** [@mykerinos1](https://discourse.nodered.org/u/mykerinos1)\
**Replies:** 5\
**Last updated:** [18 August 2021 12:08 UTC](https://discourse.nodered.org/t/collect-just-a-number-in-a-flow/49847 "2021-08-18T12:08:36Z")

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Hello. i receive data from a http link. i just want to extract or separate data to extract value. actually i have that. how can i do please ?

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## [Unable to install smart-nora](https://discourse.nodered.org/t/unable-to-install-smart-nora/49821)

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**Author:** [@gauravmyid](https://discourse.nodered.org/u/gauravmyid)\
**Replies:** 5\
**Last updated:** [18 August 2021 09:43 UTC](https://discourse.nodered.org/t/unable-to-install-smart-nora/49821 "2021-08-18T09:43:54Z")

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Hello, i am running nodered server on ibm cloud and unable to install smart-nora pallet. Earlier i was using google cloud successfully.

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## [How to share flows and make it easier install required modules?](https://discourse.nodered.org/t/how-to-share-flows-and-make-it-easier-install-required-modules/49867)

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**Author:** [@Prathamesh\_Gharat](https://discourse.nodered.org/u/Prathamesh_Gharat)\
**Replies:** 1\
**Last updated:** [18 August 2021 09:41 UTC](https://discourse.nodered.org/t/how-to-share-flows-and-make-it-easier-install-required-modules/49867 "2021-08-18T09:41:11Z")

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When I currently import flows on a new NodeRed installation, the required nodes are missing. Is there a way to make NodeRed suggest/ask to install specific nodes when importing a flow?

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## [Write Exif/Metadata to file](https://discourse.nodered.org/t/write-exif-metadata-to-file/49699)

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**Author:** [@Nbra](https://discourse.nodered.org/u/Nbra)\
**Replies:** 2\
**Last updated:** [18 August 2021 06:51 UTC](https://discourse.nodered.org/t/write-exif-metadata-to-file/49699 "2021-08-18T06:51:04Z")

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Hi, Has anyone a good solution for writing geotag data to a image file via Node Red? I see there is many good solutions for reading exif data. Im extracting .jpeg images from a RTSP stream using ffmpeg in a exec node, …

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## [Multiply 2 payloads after join node](https://discourse.nodered.org/t/multiply-2-payloads-after-join-node/49857)

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**Author:** [@gjones84](https://discourse.nodered.org/u/gjones84)\
**Replies:** 4\
**Last updated:** [18 August 2021 06:11 UTC](https://discourse.nodered.org/t/multiply-2-payloads-after-join-node/49857 "2021-08-18T06:11:06Z")

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Hi All, Tried to find the answer for this. I can find how to sum 2 separate message payloads. But how do I multiply them together? See below. I want to multiply 10 by 20. \[{"id":"e1b07ecd.4ceac","type":"change","z":"f4…

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## [Function Not Returning Value](https://discourse.nodered.org/t/function-not-returning-value/49854)

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**Author:** [@ChZeman](https://discourse.nodered.org/u/ChZeman)\
**Replies:** 13\
**Last updated:** [17 August 2021 23:03 UTC](https://discourse.nodered.org/t/function-not-returning-value/49854 "2021-08-17T23:03:17Z")

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I have a function in a node that searches for and returns the line of a text file. It does what it should, but the output is only assigned to the variable inside the function. Additionally, the debug output seems to indi…

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## [Initial Message of hysteresis node](https://discourse.nodered.org/t/initial-message-of-hysteresis-node/49832)

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**Author:** [@Petuur](https://discourse.nodered.org/u/Petuur)\
**Replies:** 1\
**Last updated:** [17 August 2021 12:39 UTC](https://discourse.nodered.org/t/initial-message-of-hysteresis-node/49832 "2021-08-17T12:39:00Z")

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Hi there, I am using Node-RED version 2.0.5 and Node.JS version 16.6.1 and the node-red-contrib-hysteresis module. I want the hysteresis node to output its initial state, but that does not work with the flow below. Doe…

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## [Group/Team development workflow](https://discourse.nodered.org/t/group-team-development-workflow/7069)

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**Author:** [@Naes0](https://discourse.nodered.org/u/Naes0)\
**Replies:** 17\
**Last updated:** [17 August 2021 12:28 UTC](https://discourse.nodered.org/t/group-team-development-workflow/7069 "2021-08-17T12:28:41Z")

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Hi guys, I'm looking into using Node-RED in a team development environment and was curious if anyone had a workflow for this already? I'm currently using version control for most of the basic stuff and I have flowfilepr…

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## [What parameters i need to push to addFlow func?](https://discourse.nodered.org/t/what-parameters-i-need-to-push-to-addflow-func/49824)

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**Author:** [@Snoz3f](https://discourse.nodered.org/u/Snoz3f)\
**Replies:** 5\
**Last updated:** [17 August 2021 12:20 UTC](https://discourse.nodered.org/t/what-parameters-i-need-to-push-to-addflow-func/49824 "2021-08-17T12:20:29Z")

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Hello. Can you explain please what parameters i need to push in this function. I checked documentation but it does not contain a normal explanation

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## [Node-red-contrib-blockly which blockly version is being used?](https://discourse.nodered.org/t/node-red-contrib-blockly-which-blockly-version-is-being-used/49806)

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**Author:** [@rth](https://discourse.nodered.org/u/rth)\
**Replies:** 7\
**Last updated:** [17 August 2021 12:16 UTC](https://discourse.nodered.org/t/node-red-contrib-blockly-which-blockly-version-is-being-used/49806 "2021-08-17T12:16:22Z")

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Hello I have to questions regardig node-red-blockly and I would love if someone could help me. Which version is being used in the node-red-blockly? Why do I get a empty toolbox when I download the newst node-red-blockl…

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## [Stream from UI microphone over MQTT](https://discourse.nodered.org/t/stream-from-ui-microphone-over-mqtt/49648)

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**Author:** [@patlas](https://discourse.nodered.org/u/patlas)\
**Replies:** 5\
**Last updated:** [17 August 2021 11:45 UTC](https://discourse.nodered.org/t/stream-from-ui-microphone-over-mqtt/49648 "2021-08-17T11:45:56Z")

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Hi, I am wondering if is it possible to edit node-red-ui-nodes/node-red-node-ui-microphone to send raw data buffer over mqtt. I would like to set package size (or hardcoded it) and when buffer is full send it over mqtt …

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## [Sending data to Jupyter Notebook and getting output back](https://discourse.nodered.org/t/sending-data-to-jupyter-notebook-and-getting-output-back/49794)

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**Author:** [@aryans14](https://discourse.nodered.org/u/aryans14)\
**Replies:** 3\
**Last updated:** [17 August 2021 09:38 UTC](https://discourse.nodered.org/t/sending-data-to-jupyter-notebook-and-getting-output-back/49794 "2021-08-17T09:38:23Z")

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I want to pass some set of values to Jupyter Notebook (I already done coding in a notebook there) where a function will take these values and return me the output. I want to get this data back in Node Red to display. An…

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## [Check if at least two out of five booleans are true](https://discourse.nodered.org/t/check-if-at-least-two-out-of-five-booleans-are-true/49596)

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**Author:** [@Duncan](https://discourse.nodered.org/u/Duncan)\
**Replies:** 20\
**Last updated:** [17 August 2021 09:10 UTC](https://discourse.nodered.org/t/check-if-at-least-two-out-of-five-booleans-are-true/49596 "2021-08-17T09:10:11Z")

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Good morning just a quick question. How would I go about the following? Check if at least two out of five booleans are true. I am sure there must be a node for this. thanx

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## [API for configuring & watching the editor?](https://discourse.nodered.org/t/api-for-configuring-watching-the-editor/49035)

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**Author:** [@ItayKishon-Vayyar](https://discourse.nodered.org/u/ItayKishon-Vayyar)\
**Replies:** 3\
**Last updated:** [17 August 2021 08:58 UTC](https://discourse.nodered.org/t/api-for-configuring-watching-the-editor/49035 "2021-08-17T08:58:56Z")

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Hi, A project I'm working on is using the node-red editor as some sort of interface to the main system. For that, I'm looking for a way to both configure the editor itself and watch (hook) when something happens. I vag…

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## [Running SSH against Synology NAS](https://discourse.nodered.org/t/running-ssh-against-synology-nas/49799)

<div class="topic-metadata">

**Author:** [@faranhor](https://discourse.nodered.org/u/faranhor)\
**Replies:** 2\
**Last updated:** [17 August 2021 07:25 UTC](https://discourse.nodered.org/t/running-ssh-against-synology-nas/49799 "2021-08-17T07:25:14Z")

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I saw another post from someone else having the same issue. I'm using BigSSH node as a client and couldn't get a command to run. Being very tired when I got to this part of the flow I didn't catch the exception in time b…

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## [How to extract string information](https://discourse.nodered.org/t/how-to-extract-string-information/49786)

<div class="topic-metadata">

**Author:** [@DSongra11\_forum.com](https://discourse.nodered.org/u/DSongra11_forum.com)\
**Replies:** 2\
**Last updated:** [17 August 2021 07:15 UTC](https://discourse.nodered.org/t/how-to-extract-string-information/49786 "2021-08-17T07:15:25Z")

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Hello, I want to extract string information as read mark in screenshot like lastname, firstname, cardholderTypeUID etc. and same for other, that information I want to show on dashboard or send to Modbus TCP communicatio…

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## [Node-red with firebase](https://discourse.nodered.org/t/node-red-with-firebase/49815)

<div class="topic-metadata">

**Author:** [@almostz](https://discourse.nodered.org/u/almostz)\
**Replies:** 6\
**Last updated:** [17 August 2021 07:05 UTC](https://discourse.nodered.org/t/node-red-with-firebase/49815 "2021-08-17T07:05:55Z")

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why I cannot connect to firebase via node-red v2.0.5 in Debian google cloud service but I can connect to node-red v1.2.1 via IOT2040 siemens please help me.

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