# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=521

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

**Page:** 522

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## [Linediagram wit Milestones](https://discourse.nodered.org/t/linediagram-wit-milestones/48548)

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**Author:** [@edstobi](https://discourse.nodered.org/u/edstobi)\
**Replies:** 3\
**Last updated:** [18 July 2021 19:22 UTC](https://discourse.nodered.org/t/linediagram-wit-milestones/48548 "2021-07-18T19:22:41Z")

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Hello I am measureing the temperature of my pond and output it in a lieniendiagram over 2 weeks. I have always had points that I had a sudden drop in temperature. Meanwhile I know that most of the drops throu the autom…

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## [MQTT performance evaluation](https://discourse.nodered.org/t/mqtt-performance-evaluation/48514)

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**Author:** [@Habiba](https://discourse.nodered.org/u/Habiba)\
**Replies:** 5\
**Last updated:** [18 July 2021 16:57 UTC](https://discourse.nodered.org/t/mqtt-performance-evaluation/48514 "2021-07-18T16:57:17Z")

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Hello, I'm new to Node Red and i was wondering if there is any way in node Red to analyze the performance of MQTT connection in terms of reliability, throughput ,latency and such... And if not what tool should i use fo…

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## [Passing Bearer Token "Can't Convert Access Token to JSON"](https://discourse.nodered.org/t/passing-bearer-token-cant-convert-access-token-to-json/48314)

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**Author:** [@hawks76](https://discourse.nodered.org/u/hawks76)\
**Replies:** 2\
**Last updated:** [18 July 2021 15:12 UTC](https://discourse.nodered.org/t/passing-bearer-token-cant-convert-access-token-to-json/48314 "2021-07-18T15:12:26Z")

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So i have a curl command that goes out to a Whirlpool API and pulls down some JSON. I use OAuth2 and i can get the token back no problem, but when i pass the token in a msg.headers to the http request node, i always get…

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## [Delay, timer, throttle or trigger?](https://discourse.nodered.org/t/delay-timer-throttle-or-trigger/46461)

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**Author:** [@Kris-de-voecht](https://discourse.nodered.org/u/Kris-de-voecht)\
**Replies:** 36\
**Last updated:** [18 July 2021 06:47 UTC](https://discourse.nodered.org/t/delay-timer-throttle-or-trigger/46461 "2021-07-18T06:47:04Z")

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Hi, I read out my digital electricity meter and I aim using this data to controle 4 heaters of 800 watt to use the injection/production of electricity. Probleme I have is: when I have 800 watt + delta 200 injection of…

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## [IBM Watson Assistant Telegram Integration unsure what to input in functions](https://discourse.nodered.org/t/ibm-watson-assistant-telegram-integration-unsure-what-to-input-in-functions/48539)

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**Author:** [@rylzxc](https://discourse.nodered.org/u/rylzxc)\
**Replies:** 0\
**Last updated:** [18 July 2021 06:10 UTC](https://discourse.nodered.org/t/ibm-watson-assistant-telegram-integration-unsure-what-to-input-in-functions/48539 "2021-07-18T06:10:53Z")

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Hi, I am planning to integrate IBM Watson chat assistant (a chatbot framework tool) to Telegram using Node-red. However, I met with some errors along the way. I'm new to Node-red and would really appreciate any help giv…

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## [Is there a way to find what is creating/updating globals?](https://discourse.nodered.org/t/is-there-a-way-to-find-what-is-creating-updating-globals/48473)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 8\
**Last updated:** [18 July 2021 02:34 UTC](https://discourse.nodered.org/t/is-there-a-way-to-find-what-is-creating-updating-globals/48473 "2021-07-18T02:34:49Z")

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Guys, Is there a way to find what tab/function is updating a global variable ? i am up to about 40 tabs now and trying to track down where/what is updating a couple of globals is doing my head in ! Craig

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## [Telnet from Node-RED running on Windows 10](https://discourse.nodered.org/t/telnet-from-node-red-running-on-windows-10/47718)

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**Author:** [@intmech](https://discourse.nodered.org/u/intmech)\
**Replies:** 8\
**Last updated:** [17 July 2021 21:07 UTC](https://discourse.nodered.org/t/telnet-from-node-red-running-on-windows-10/47718 "2021-07-17T21:07:45Z")

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In linux I'm able to run telnet in an exec node. I can't seem to make that happen in windows 10 and I'm not certain why. I have tried to use node-red-contrib-telnet-client but I can't find any documentation or examples…

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## [Consumption profiles](https://discourse.nodered.org/t/consumption-profiles/48442)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 13\
**Last updated:** [17 July 2021 20:19 UTC](https://discourse.nodered.org/t/consumption-profiles/48442 "2021-07-17T20:19:43Z")

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Topic moved here from Ideas about solar production forecasting - #40 by eddee54455 as requested by @BartButenaers For info @craigcurtin

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## [Can't Differentiate data from different topics while inserting data into my sql database](https://discourse.nodered.org/t/cant-differentiate-data-from-different-topics-while-inserting-data-into-my-sql-database/48275)

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**Author:** [@SubhanShamsi](https://discourse.nodered.org/u/SubhanShamsi)\
**Replies:** 12\
**Last updated:** [17 July 2021 18:12 UTC](https://discourse.nodered.org/t/cant-differentiate-data-from-different-topics-while-inserting-data-into-my-sql-database/48275 "2021-07-17T18:12:56Z")

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msg.topic = "insert into metertable values ('','','"+msg.payload+"','"+msg.payload+"');" return msg; While the data is different and its insert the same values on both column in database. I also tried to create …

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## [Number as a variable](https://discourse.nodered.org/t/number-as-a-variable/48524)

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**Author:** [@Dosepower](https://discourse.nodered.org/u/Dosepower)\
**Replies:** 8\
**Last updated:** [17 July 2021 15:01 UTC](https://discourse.nodered.org/t/number-as-a-variable/48524 "2021-07-17T15:01:42Z")

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Hey i want that the number (8000) is a variable that i can load from a stored variable called (msg.Netz) msg.payload = {"current":8000} return msg;

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## [Node File does not work on Windows 10](https://discourse.nodered.org/t/node-file-does-not-work-on-windows-10/48521)

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**Author:** [@Roman](https://discourse.nodered.org/u/Roman)\
**Replies:** 1\
**Last updated:** [17 July 2021 13:35 UTC](https://discourse.nodered.org/t/node-file-does-not-work-on-windows-10/48521 "2021-07-17T13:35:46Z")

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Hi! I'm trying to append file with text on local file system. Here is a duplicate, but there is no solution: File node not working on windows Here's my first try. I wrote file name in property filename of node file: \[…

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## [Chart grid not evenly spaced](https://discourse.nodered.org/t/chart-grid-not-evenly-spaced/48515)

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**Author:** [@ryan1998](https://discourse.nodered.org/u/ryan1998)\
**Replies:** 6\
**Last updated:** [17 July 2021 13:33 UTC](https://discourse.nodered.org/t/chart-grid-not-evenly-spaced/48515 "2021-07-17T13:33:34Z")

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A chart usually has 4 evenly spaced divisions. If I do this, however: node.send( {ui\_control:{min:13900}} ); And later this: node.send( {ui\_control:{max:14060}} ); The chart has a non-evenly spaced grid with 5 divis…

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## [Using vue bootsrap in uibuilder](https://discourse.nodered.org/t/using-vue-bootsrap-in-uibuilder/48516)

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**Author:** [@SubhanShamsi](https://discourse.nodered.org/u/SubhanShamsi)\
**Replies:** 2\
**Last updated:** [17 July 2021 12:02 UTC](https://discourse.nodered.org/t/using-vue-bootsrap-in-uibuilder/48516 "2021-07-17T12:02:22Z")

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I'm trying to use vue bootstrap table in uibuilder index.html file but when I run uibuilder its show my site blank I used below code : \<script\> export default { …

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## [Files without extension are not listed (node-red-contrib-fs)](https://discourse.nodered.org/t/files-without-extension-are-not-listed-node-red-contrib-fs/48308)

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**Author:** [@softy2k](https://discourse.nodered.org/u/softy2k)\
**Replies:** 16\
**Last updated:** [14 July 2021 13:58 UTC](https://discourse.nodered.org/t/files-without-extension-are-not-listed-node-red-contrib-fs/48308 "2021-07-14T13:58:08Z")

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Files without extension are not listed. Info : Windows 10 NodeRed 1.3.5 and 2 beta 2 NodeJs 14.17.3 Npm 7.19.1 Chrome

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## [HTTP request returns "undefined"](https://discourse.nodered.org/t/http-request-returns-undefined/48455)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 9\
**Last updated:** [17 July 2021 10:50 UTC](https://discourse.nodered.org/t/http-request-returns-undefined/48455 "2021-07-17T10:50:19Z")

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Hi, I do a http request https://mapper.packetbroker.net/api/v2/gateways/netID=000013,tenantID=ttn,id=farmspace-ug87-24e124fffef052a3 The response is {"netID":"000013","tenantID":"ttn","id":"farmspace-ug87-24e124fffef…

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## [Ui Builder - eCharts get zoom position](https://discourse.nodered.org/t/ui-builder-echarts-get-zoom-position/48486)

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**Author:** [@yzerman](https://discourse.nodered.org/u/yzerman)\
**Replies:** 5\
**Last updated:** [17 July 2021 10:18 UTC](https://discourse.nodered.org/t/ui-builder-echarts-get-zoom-position/48486 "2021-07-17T10:18:34Z")

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Hi, can anyone help me how could I take the current position of the slider zoom in eCharts and send it via uibuilder.send(). I think it needed to add custom js function that will wait for slider movement etc.. Thank you…

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## [Pulling specific data from a msg.payload object](https://discourse.nodered.org/t/pulling-specific-data-from-a-msg-payload-object/48511)

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**Author:** [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Replies:** 4\
**Last updated:** [17 July 2021 07:57 UTC](https://discourse.nodered.org/t/pulling-specific-data-from-a-msg-payload-object/48511 "2021-07-17T07:57:51Z")

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I am using the ewelink node and am stuck on trying to get a specific piece of data from the event listener node. The following is the debug output: object payload: object action: "update" deviceid: "xxxxxxxxx" apik…

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## [Issue create model machine learning](https://discourse.nodered.org/t/issue-create-model-machine-learning/48388)

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**Author:** [@pelarnut01](https://discourse.nodered.org/u/pelarnut01)\
**Replies:** 13\
**Last updated:** [17 July 2021 01:27 UTC](https://discourse.nodered.org/t/issue-create-model-machine-learning/48388 "2021-07-17T01:27:30Z")

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I created data as a csv file to use for create dataset and modeling, but I have a problem when modeling by when using too many csv moles eg using 1000row data Modeling gives error, but if I use 300 rows of data, modeling…

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## [How to avoid GPIO transmission on restart?](https://discourse.nodered.org/t/how-to-avoid-gpio-transmission-on-restart/47177)

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**Author:** [@daxliniere](https://discourse.nodered.org/u/daxliniere)\
**Replies:** 8\
**Last updated:** [16 July 2021 20:31 UTC](https://discourse.nodered.org/t/how-to-avoid-gpio-transmission-on-restart/47177 "2021-07-16T20:31:27Z")

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Hey gang, I have a NR flow set to monitor (and email) a couple GPIO pins (power outage, etc) which are displayed on a Dashboard as red/green 'LEDs'. The problem is that when I restart the Pi, the value of those pins is …

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## [Inject node to a function node](https://discourse.nodered.org/t/inject-node-to-a-function-node/48496)

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**Author:** [@tpbillund](https://discourse.nodered.org/u/tpbillund)\
**Replies:** 2\
**Last updated:** [16 July 2021 14:30 UTC](https://discourse.nodered.org/t/inject-node-to-a-function-node/48496 "2021-07-16T14:30:43Z")

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Hi I have this inject node, and works well. How do I make a msg.topic and msg.payload function, so it will work as the inject node?

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## [Help with javascript in a function node](https://discourse.nodered.org/t/help-with-javascript-in-a-function-node/48490)

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**Author:** [@Bodad](https://discourse.nodered.org/u/Bodad)\
**Replies:** 3\
**Last updated:** [16 July 2021 14:22 UTC](https://discourse.nodered.org/t/help-with-javascript-in-a-function-node/48490 "2021-07-16T14:22:51Z")

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Hi, I have a Node Red flow that has been working fine for some time, operating solenoid valves for my garden watering system. I have recently replaced the power supply with an old ATX PC type which has a permanent on 5…

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## [Line Chart series query](https://discourse.nodered.org/t/line-chart-series-query/48478)

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**Author:** [@JoshuaG](https://discourse.nodered.org/u/JoshuaG)\
**Replies:** 11\
**Last updated:** [16 July 2021 14:06 UTC](https://discourse.nodered.org/t/line-chart-series-query/48478 "2021-07-16T14:06:32Z")

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I have a chart setup what I needed to show positive and negative numbers in different colours, how I have achieved this is to check the value before hand and set the topic to High or Low depending on its value. But now…

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## [Need guidance parse Tasmota MQTT payload](https://discourse.nodered.org/t/need-guidance-parse-tasmota-mqtt-payload/48487)

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**Author:** [@r0kdu5t](https://discourse.nodered.org/u/r0kdu5t)\
**Replies:** 4\
**Last updated:** [16 July 2021 13:57 UTC](https://discourse.nodered.org/t/need-guidance-parse-tasmota-mqtt-payload/48487 "2021-07-16T13:57:52Z")

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Hey all, Long timer lurker, first time posting to this forum. So, I'm using Tasmota on ESP32 to monitor some Xiaomi Temperature and Humidity BLE sensors. Similar to "Help me parse this payload" I'm having some trouble…

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## [How to run a flow, based on a status](https://discourse.nodered.org/t/how-to-run-a-flow-based-on-a-status/48488)

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**Author:** [@tpbillund](https://discourse.nodered.org/u/tpbillund)\
**Replies:** 1\
**Last updated:** [16 July 2021 13:06 UTC](https://discourse.nodered.org/t/how-to-run-a-flow-based-on-a-status/48488 "2021-07-16T13:06:44Z")

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Hi I have a Maria DB that have an home alarm status (ZigBee) Working fine.. Then I have a trigger flow, that send a Telegram message, if a window is opened: It's also working fine... Now I need it to work togeth…

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## [Assistance with logic for flow, please. :)](https://discourse.nodered.org/t/assistance-with-logic-for-flow-please/48143)

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**Author:** [@daxliniere](https://discourse.nodered.org/u/daxliniere)\
**Replies:** 7\
**Last updated:** [16 July 2021 12:27 UTC](https://discourse.nodered.org/t/assistance-with-logic-for-flow-please/48143 "2021-07-16T12:27:15Z")

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Hey everyone, I was hoping to get some direction on how to create this logical flow in NR. It's a system with 2 binary inputs and a camera for still image capture. I have the image capture stuff working already and the …

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## [How to use node-red-node-email](https://discourse.nodered.org/t/how-to-use-node-red-node-email/48482)

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**Author:** [@nam1702](https://discourse.nodered.org/u/nam1702)\
**Replies:** 2\
**Last updated:** [16 July 2021 11:16 UTC](https://discourse.nodered.org/t/how-to-use-node-red-node-email/48482 "2021-07-16T11:16:18Z")

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Hello everyone, this is the first time I use forum, so you can tell me about my mistake. Now i'm trying to use node-red-node-email, i can use node e-mail and e-mail in, but i don't know how to use the other one (e-mai…

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## [Tensorflow.js installation error with Raspberry Pi](https://discourse.nodered.org/t/tensorflow-js-installation-error-with-raspberry-pi/48475)

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**Author:** [@MK1992](https://discourse.nodered.org/u/MK1992)\
**Replies:** 3\
**Last updated:** [16 July 2021 10:13 UTC](https://discourse.nodered.org/t/tensorflow-js-installation-error-with-raspberry-pi/48475 "2021-07-16T10:13:21Z")

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\----------------------------------------------------------- 2021-07-16T04:05:38.212Z Install : node-red-contrib-tensorflow-js 0.0.8 2021-07-16T04:05:38.247Z npm install --no-audit --no-update-notifier --no-fund --save …

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## [Unable to load SVG with DRAW SVG](https://discourse.nodered.org/t/unable-to-load-svg-with-draw-svg/48206)

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**Author:** [@vikingsraven](https://discourse.nodered.org/u/vikingsraven)\
**Replies:** 10\
**Last updated:** [16 July 2021 09:44 UTC](https://discourse.nodered.org/t/unable-to-load-svg-with-draw-svg/48206 "2021-07-16T09:44:09Z")

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HI all, just started to play with the node-red-contrib-ui-svg, and got the Draw Svg screen open , but im unable to open files from it. The folder icons have grey backgrounds, and the mouse cursor doesnt change when h…

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## [Need help on reverse hex](https://discourse.nodered.org/t/need-help-on-reverse-hex/48445)

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**Author:** [@darw82](https://discourse.nodered.org/u/darw82)\
**Replies:** 16\
**Last updated:** [16 July 2021 09:14 UTC](https://discourse.nodered.org/t/need-help-on-reverse-hex/48445 "2021-07-16T09:14:38Z")

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Hello, I'm newbie on Node-Red, I need help on reversing hex output from buffer parser. Please let me know how to do this properly. Thank you.

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## [Custom user authentication and check request host](https://discourse.nodered.org/t/custom-user-authentication-and-check-request-host/48430)

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**Author:** [@twocolors](https://discourse.nodered.org/u/twocolors)\
**Replies:** 15\
**Last updated:** [16 July 2021 08:32 UTC](https://discourse.nodered.org/t/custom-user-authentication-and-check-request-host/48430 "2021-07-16T08:32:27Z")

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can some one help, how check host in adminAuth

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