# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1341

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

**Page:** 1342

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## [NodeRed thingspeak payload](https://discourse.nodered.org/t/nodered-thingspeak-payload/5330)

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**Author:** [@yoyo89](https://discourse.nodered.org/u/yoyo89)\
**Replies:** 10\
**Last updated:** [30 November 2018 21:05 UTC](https://discourse.nodered.org/t/nodered-thingspeak-payload/5330 "2018-11-30T21:05:35Z")

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Hello People im trying to send data from TTN to things speak but my payload is something like that {"payload":"F1:0.000,F2:0.000,F3:0.000,F4:0.000,"} ,thethingsspeak42 didnt work for me in node Red but i used something…

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## [RFID-Locker (array-buffer, script)](https://discourse.nodered.org/t/rfid-locker-array-buffer-script/5333)

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**Author:** [@Andre](https://discourse.nodered.org/u/Andre)\
**Replies:** 2\
**Last updated:** [30 November 2018 19:39 UTC](https://discourse.nodered.org/t/rfid-locker-array-buffer-script/5333 "2018-11-30T19:39:24Z")

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Good day, I want to rebuild the locker at my gym from old-fashioned keys to RFID lockers. The necessary hardware is already installed with electric locks etc. The goal is that someone logs in with an rfid card, the nu…

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## [ER\_HOST\_NOT\_PRIVILEGED](https://discourse.nodered.org/t/er-host-not-privileged/5359)

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**Author:** [@zayas](https://discourse.nodered.org/u/zayas)\
**Replies:** 2\
**Last updated:** [30 November 2018 17:33 UTC](https://discourse.nodered.org/t/er-host-not-privileged/5359 "2018-11-30T17:33:23Z")

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Hello, I am trying to communicate the node network with mysql and I get the following error: ER\_HOST\_NOT\_PRIVILEGED, why is it? In MySQL I have the users with all the privileges and I use it through the MySQL server, but…

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## [MySQL node "connection refused" error](https://discourse.nodered.org/t/mysql-node-connection-refused-error/5342)

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**Author:** [@aanand](https://discourse.nodered.org/u/aanand)\
**Replies:** 3\
**Last updated:** [30 November 2018 16:27 UTC](https://discourse.nodered.org/t/mysql-node-connection-refused-error/5342 "2018-11-30T16:27:47Z")

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Guys, I have installed MYSQL node. After configuration of the details and deployment it will give "connection refused" error. Kindly help us to resolve this issue. Thanks & Regards, Aanand

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## [Windows exec Node. start process in the foreground](https://discourse.nodered.org/t/windows-exec-node-start-process-in-the-foreground/5345)

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**Author:** [@noemu](https://discourse.nodered.org/u/noemu)\
**Replies:** 4\
**Last updated:** [30 November 2018 16:09 UTC](https://discourse.nodered.org/t/windows-exec-node-start-process-in-the-foreground/5345 "2018-11-30T16:09:43Z")

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hello, i want to launch some programs from my node-red server. My Problem is that the programs are running but i don't see the window. example: command: C:/WINDOWS/system32/notepad.exe i get a pid and if i lookup th…

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## [Store Buffer to file](https://discourse.nodered.org/t/store-buffer-to-file/5351)

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**Author:** [@abra](https://discourse.nodered.org/u/abra)\
**Replies:** 2\
**Last updated:** [30 November 2018 14:25 UTC](https://discourse.nodered.org/t/store-buffer-to-file/5351 "2018-11-30T14:25:51Z")

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Is there any node that allows storing a Buffer to a file, keeping the binary format 1:1, without converting it to any JSON string or whatever?

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## [Old Flow - New installation - Ghost nodes](https://discourse.nodered.org/t/old-flow-new-installation-ghost-nodes/5322)

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**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 20\
**Last updated:** [30 November 2018 13:17 UTC](https://discourse.nodered.org/t/old-flow-new-installation-ghost-nodes/5322 "2018-11-30T13:17:42Z")

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Hello All Due to several issues I had to install a new Pi with a new installation. I am just using a old flow. for sure i am now installing the missing nodes. Node red is requiring nodes that albeit I had installed the…

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## [Export flows into library creates file with out base name](https://discourse.nodered.org/t/export-flows-into-library-creates-file-with-out-base-name/5302)

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**Author:** [@arunnattarayan](https://discourse.nodered.org/u/arunnattarayan)\
**Replies:** 3\
**Last updated:** [30 November 2018 12:48 UTC](https://discourse.nodered.org/t/export-flows-into-library-creates-file-with-out-base-name/5302 "2018-11-30T12:48:55Z")

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Way to reproduce:- When we export a flow into the library and give file name with a trailing slash. That time Node-Red creates .json file with out base name. Impact We can't see the exported flow in import library optio…

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## [Merge / Diff on the Node-RED flow is very slow](https://discourse.nodered.org/t/merge-diff-on-the-node-red-flow-is-very-slow/5095)

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**Author:** [@JpEncausse](https://discourse.nodered.org/u/JpEncausse)\
**Replies:** 10\
**Last updated:** [30 November 2018 10:13 UTC](https://discourse.nodered.org/t/merge-diff-on-the-node-red-flow-is-very-slow/5095 "2018-11-30T10:13:21Z")

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Hello, We are working on various ChatBot project using Node-Red to design conversation. But "team work" on v0.19 is really painfull when making diff on the flow. In a nutshell it takes about 2 minutes to make the diff …

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## [How to optimize sending associativ array (filter payload)](https://discourse.nodered.org/t/how-to-optimize-sending-associativ-array-filter-payload/5246)

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**Author:** [@dark\_vidor](https://discourse.nodered.org/u/dark_vidor)\
**Replies:** 7\
**Last updated:** [30 November 2018 09:58 UTC](https://discourse.nodered.org/t/how-to-optimize-sending-associativ-array-filter-payload/5246 "2018-11-30T09:58:06Z")

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Hello, I have this payload (for exemple) : payload : \[\[0,"300",0,0,0,0,0\],\[0,0,0,0,0,0,0\]\] I would like to send : payload : {"0":{"1":300}} Also if my payload will be : payload : \[\[0,"300",0,"500",0,0,0\],\[0,0,"200",0,…

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## [Exposing a HTTP node without SSL in secured NR](https://discourse.nodered.org/t/exposing-a-http-node-without-ssl-in-secured-nr/5300)

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**Author:** [@lius](https://discourse.nodered.org/u/lius)\
**Replies:** 2\
**Last updated:** [30 November 2018 07:28 UTC](https://discourse.nodered.org/t/exposing-a-http-node-without-ssl-in-secured-nr/5300 "2018-11-30T07:28:21Z")

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Dear Node-RED friends, Is it possible to expose an HTTP node in a secured Node-RED environment? Basically, I want to have all of NR's APIs and UI SSL-secured, but I need to make one particular endpoint available for a d…

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## [Need Help: Dashboard layout in wrong order](https://discourse.nodered.org/t/need-help-dashboard-layout-in-wrong-order/5288)

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**Author:** [@DRath](https://discourse.nodered.org/u/DRath)\
**Replies:** 17\
**Last updated:** [29 November 2018 21:55 UTC](https://discourse.nodered.org/t/need-help-dashboard-layout-in-wrong-order/5288 "2018-11-29T21:55:25Z")

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I have a flow in which data is being read from a CSV and then displayed online using Dashboard. In the final part, the data from the CSV is split up into 10 components by a function node and sent forward to template nod…

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## [How do i draw a robot face on 3.5 inch TFT](https://discourse.nodered.org/t/how-do-i-draw-a-robot-face-on-3-5-inch-tft/5321)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 3\
**Last updated:** [29 November 2018 21:20 UTC](https://discourse.nodered.org/t/how-do-i-draw-a-robot-face-on-3-5-inch-tft/5321 "2018-11-29T21:20:46Z")

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Hi , I have a 3.5inch TFT and RPi3, I plan to make a robot. How do i draw a face n animate it as in the picture? Thank you.

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## [Node Red Install and Cleanup](https://discourse.nodered.org/t/node-red-install-and-cleanup/5298)

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**Author:** [@Grendel61](https://discourse.nodered.org/u/Grendel61)\
**Replies:** 2\
**Last updated:** [29 November 2018 20:16 UTC](https://discourse.nodered.org/t/node-red-install-and-cleanup/5298 "2018-11-29T20:16:01Z")

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We've been doing a lot of Node Red development with new nodes and flow development, and I think along the way I must have made some mistakes in the installation process. Node Red seems to function okay, but the deploy pr…

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## [Show select option text as label](https://discourse.nodered.org/t/show-select-option-text-as-label/5130)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 11\
**Last updated:** [29 November 2018 18:51 UTC](https://discourse.nodered.org/t/show-select-option-text-as-label/5130 "2018-11-29T18:51:06Z")

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Hi folks, The config screen of my custom node contains a dropdown: \<script type="text/x-red" data-template-name="math"\> \<div class="form-row"\> \<label for="node-input-operation"\>\<i class="fa fa-calculator"\>\</…

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## [Dashboard shows only default style](https://discourse.nodered.org/t/dashboard-shows-only-default-style/5309)

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**Author:** [@jhp](https://discourse.nodered.org/u/jhp)\
**Replies:** 4\
**Last updated:** [29 November 2018 18:36 UTC](https://discourse.nodered.org/t/dashboard-shows-only-default-style/5309 "2018-11-29T18:36:57Z")

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Hi All I've updated my node-red to the latest ver. on my raspberry, and all my nodes, but for some reason my dashboard now only showing default (light) theme, even when I select dark theme, hmmm what is wrong here.... J…

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## [Greating a clock widget](https://discourse.nodered.org/t/greating-a-clock-widget/5317)

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**Author:** [@Alex](https://discourse.nodered.org/u/Alex)\
**Replies:** 5\
**Last updated:** [29 November 2018 18:29 UTC](https://discourse.nodered.org/t/greating-a-clock-widget/5317 "2018-11-29T18:29:12Z")

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Hi there, I'm pretty new to Node-RED and i would appreciate if you could help me with my concern. I implemented "date & time" in the dashboard as boring numbers somewhere in a colomn of the dashboard. Now I'm trying t…

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## [http endpoint authentication](https://discourse.nodered.org/t/http-endpoint-authentication/5316)

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**Author:** [@sacredshapes](https://discourse.nodered.org/u/sacredshapes)\
**Replies:** 0\
**Last updated:** [29 November 2018 17:30 UTC](https://discourse.nodered.org/t/http-endpoint-authentication/5316 "2018-11-29T17:30:06Z")

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I am trying to get IFTTT to trigger an automation on Node-Red (installed via Hass.io) by using an http endpoint. It works when I visit the URL I’ve defined, but it asks for the http node credentials, which I have defined…

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## [The file node, change the syntax](https://discourse.nodered.org/t/the-file-node-change-the-syntax/5178)

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**Author:** [@fabien](https://discourse.nodered.org/u/fabien)\
**Replies:** 28\
**Last updated:** [29 November 2018 17:15 UTC](https://discourse.nodered.org/t/the-file-node-change-the-syntax/5178 "2018-11-29T17:15:10Z")

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Hello, I have a problem with the file node. When I extract data with the file write node, everything is fine; no syntax problem. On the other hand, when I want to recover the data with the file reads node, I have synta…

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## [Node MySQL fail](https://discourse.nodered.org/t/node-mysql-fail/5306)

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**Author:** [@zayas](https://discourse.nodered.org/u/zayas)\
**Replies:** 2\
**Last updated:** [29 November 2018 16:58 UTC](https://discourse.nodered.org/t/node-mysql-fail/5306 "2018-11-29T16:58:44Z")

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Good, I have a fault with the MYSQL node, in principle everything is well connected, however I get the following error, "mysqladmin flush-hosts" could someone help me? Thank you

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## [Weird Issue with flow/sequence](https://discourse.nodered.org/t/weird-issue-with-flow-sequence/5304)

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**Author:** [@huddy](https://discourse.nodered.org/u/huddy)\
**Replies:** 1\
**Last updated:** [29 November 2018 16:46 UTC](https://discourse.nodered.org/t/weird-issue-with-flow-sequence/5304 "2018-11-29T16:46:07Z")

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So Im trying to make my door bell turn on my siren/alarm, using homeassistant, but it turns on, and then after the delay turns it on again? I'm not really sure. I've attached an image of what the sequence/flow?? looks l…

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## [Error: Cannot find module 'i2c-bus'](https://discourse.nodered.org/t/error-cannot-find-module-i2c-bus/5259)

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**Author:** [@jbreda007](https://discourse.nodered.org/u/jbreda007)\
**Replies:** 14\
**Last updated:** [29 November 2018 16:01 UTC](https://discourse.nodered.org/t/error-cannot-find-module-i2c-bus/5259 "2018-11-29T16:01:38Z")

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New installion of node-red, but get the following error when trying to start it. pi@jrbWork:~ $ node-red-start Start Node-RED Once Node-RED has started, point a browser at http://192.168.1.201:1880 On Pi Node-RED wor…

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## [Node-red vs Logic Machine](https://discourse.nodered.org/t/node-red-vs-logic-machine/5274)

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**Author:** [@pentadom](https://discourse.nodered.org/u/pentadom)\
**Replies:** 7\
**Last updated:** [29 November 2018 11:14 UTC](https://discourse.nodered.org/t/node-red-vs-logic-machine/5274 "2018-11-29T11:14:46Z")

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Hello, I have a project where I need to comunicate Node-red with Logic Machine (http://openrb.com/logicmachine-5-lite/) I need to send humidity values from node-red to logic machine. I need to send on/off orders from …

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## [Message payload as float-array?](https://discourse.nodered.org/t/message-payload-as-float-array/5291)

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**Author:** [@abra](https://discourse.nodered.org/u/abra)\
**Replies:** 1\
**Last updated:** [29 November 2018 09:26 UTC](https://discourse.nodered.org/t/message-payload-as-float-array/5291 "2018-11-29T09:26:30Z")

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Is it possible to define the payload of a message as a float-array ? I need that to publish some MQTT data where the MQTT payload has to be a float-array.

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## [Memory leak message](https://discourse.nodered.org/t/memory-leak-message/5277)

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**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 5\
**Last updated:** [29 November 2018 07:18 UTC](https://discourse.nodered.org/t/memory-leak-message/5277 "2018-11-29T07:18:35Z")

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Hello All In order to help me identify what are the node that create the memory leak what is this (node:24366) in the list bellow? how can i find this bad guy? (node:24366) MaxListenersExceededWarning: Possible EventE…

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## [setTimeout issue on a node with callback function](https://discourse.nodered.org/t/settimeout-issue-on-a-node-with-callback-function/5207)

<div class="topic-metadata">

**Author:** [@abajolle](https://discourse.nodered.org/u/abajolle)\
**Replies:** 9\
**Last updated:** [29 November 2018 07:06 UTC](https://discourse.nodered.org/t/settimeout-issue-on-a-node-with-callback-function/5207 "2018-11-29T07:06:13Z")

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Hi dear Node-RED community. I am connecting some digital inputs on my Siemens Simatic IoT2000 products, unfortunately none of the existing nodes are working well, so I have started to create my own. Now the behaviour is…

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## [Website embedded in dashboard](https://discourse.nodered.org/t/website-embedded-in-dashboard/2965)

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**Author:** [@GChapo](https://discourse.nodered.org/u/GChapo)\
**Replies:** 21\
**Last updated:** [29 November 2018 03:03 UTC](https://discourse.nodered.org/t/website-embedded-in-dashboard/2965 "2018-11-29T03:03:53Z")

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Hello, I wonder if anybody can help me? I would like to embed a webpage on the dashboard. I have tried iframe and embed and have failed to achieve an outcome. I have looked at various previous posts to no avail. Tha…

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## [Main process exited, code=killed, status=9/KILL](https://discourse.nodered.org/t/main-process-exited-code-killed-status-9-kill/5276)

<div class="topic-metadata">

**Author:** [@JoseGodinho](https://discourse.nodered.org/u/JoseGodinho)\
**Replies:** 17\
**Last updated:** [28 November 2018 23:06 UTC](https://discourse.nodered.org/t/main-process-exited-code-killed-status-9-kill/5276 "2018-11-28T23:06:42Z")

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Any suggestions to debug? 8 Nov 19:23:38 - \[info\] Node-RED version: v0.19.5 28 Nov 19:23:38 - \[info\] Node.js version: v8.12.0 28 Nov 19:23:38 - \[info\] Linux 4.14.71-v7+ arm LE 28 Nov 19:23:38 - \[info\] Loading palett…

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## [Put a variable data into Json code?](https://discourse.nodered.org/t/put-a-variable-data-into-json-code/5266)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 4\
**Last updated:** [28 November 2018 20:51 UTC](https://discourse.nodered.org/t/put-a-variable-data-into-json-code/5266 "2018-11-28T20:51:12Z")

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Hi, My aim is to read from my Sqlite database and eventually output to a Node-RED graph. . I have this coming out of my database, I think it's an array ? . . . I then want to place the Electricity reading of 0.0…

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## [2 msg.topic in calculation function node](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526)

<div class="topic-metadata">

**Author:** [@nick](https://discourse.nodered.org/u/nick)\
**Replies:** 24\
**Last updated:** [28 November 2018 18:28 UTC](https://discourse.nodered.org/t/2-msg-topic-in-calculation-function-node/4526 "2018-11-28T18:28:11Z")

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i am trying to make a calculation in a function node with 2 input msg.topic value's. can sombody tell me wath i am doing wrong. \[{&quot;id&quot;:&quot;6cbfa85e.a749a8&quot;,&quot;type&quot;:&quot;debug&quot;,&quot;z&qu…

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