# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1205

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

**Page:** 1206

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## [menu using node-red with unfluxdb to make a dashboard](https://discourse.nodered.org/t/menu-using-node-red-with-unfluxdb-to-make-a-dashboard/17548)

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**Author:** [@Gustavo\_lema](https://discourse.nodered.org/u/Gustavo_lema)\
**Replies:** 1\
**Last updated:** [5 November 2019 15:19 UTC](https://discourse.nodered.org/t/menu-using-node-red-with-unfluxdb-to-make-a-dashboard/17548 "2019-11-05T15:19:57Z")

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good morning everyone could help me with this code I am capturing data from a database called influexdb but I am trying to put in a database they shared this code could you help me make each line I am new to this and I w…

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## [Modify Node files for using Boolean input instead of a Click button](https://discourse.nodered.org/t/modify-node-files-for-using-boolean-input-instead-of-a-click-button/17526)

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**Author:** [@JeJeBerNode](https://discourse.nodered.org/u/JeJeBerNode)\
**Replies:** 3\
**Last updated:** [5 November 2019 15:10 UTC](https://discourse.nodered.org/t/modify-node-files-for-using-boolean-input-instead-of-a-click-button/17526 "2019-11-05T15:10:10Z")

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Hi, I'm working on a Modbus project and i want to take a picture with my webcam by using a bit from an Modbus bit. I'm using a camera node but this one is using a Button as input. I want to modify the node code to acti…

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## [Chart Time Scale Wrong](https://discourse.nodered.org/t/chart-time-scale-wrong/17494)

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**Author:** [@spyder0552](https://discourse.nodered.org/u/spyder0552)\
**Replies:** 6\
**Last updated:** [5 November 2019 14:35 UTC](https://discourse.nodered.org/t/chart-time-scale-wrong/17494 "2019-11-05T14:35:51Z")

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My chart shows the time value off by -4 hours. I have a few buttons that a I can click. Each button sends a pre-built SQL statement to my server. The results is an array of values being DateTime and a Number. When I r…

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## [How to show an image from local directory in dashboard](https://discourse.nodered.org/t/how-to-show-an-image-from-local-directory-in-dashboard/17536)

<div class="topic-metadata">

**Author:** [@panciluca](https://discourse.nodered.org/u/panciluca)\
**Replies:** 1\
**Last updated:** [5 November 2019 14:13 UTC](https://discourse.nodered.org/t/how-to-show-an-image-from-local-directory-in-dashboard/17536 "2019-11-05T14:13:00Z")

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Hello, the problem should be simple: I have a camera that every second save (OVERWRITE) an image in a local folder (/home/user/image.jpg). I simply would like to show this image in the dashboard periodically (every 10 s…

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## [Modify an array](https://discourse.nodered.org/t/modify-an-array/17533)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 3\
**Last updated:** [5 November 2019 13:39 UTC](https://discourse.nodered.org/t/modify-an-array/17533 "2019-11-05T13:39:00Z")

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I need a bit of help, I have the following, I want check how many arrays there are, in this case \[4\] delete the last one ie number 3 , then I want to add 2 more arrays to the bottom, so next time around there will be \[5\]…

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## [Send Raspi Ip address to Telegram](https://discourse.nodered.org/t/send-raspi-ip-address-to-telegram/17482)

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**Author:** [@maku12](https://discourse.nodered.org/u/maku12)\
**Replies:** 6\
**Last updated:** [5 November 2019 09:38 UTC](https://discourse.nodered.org/t/send-raspi-ip-address-to-telegram/17482 "2019-11-05T09:38:02Z")

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Hi, i want to send the current ip address as a message to telegram. Attached the flow. I don't know how to get the msg.payload from the exec node to the telegram node. flows(2).json (449 Bytes) Many Thanks for helpi…

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## [OwnTracks location tracking without public IP/MQTT](https://discourse.nodered.org/t/owntracks-location-tracking-without-public-ip-mqtt/6619)

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**Author:** [@rusenask](https://discourse.nodered.org/u/rusenask)\
**Replies:** 13\
**Last updated:** [5 November 2019 09:29 UTC](https://discourse.nodered.org/t/owntracks-location-tracking-without-public-ip-mqtt/6619 "2019-11-05T09:29:08Z")

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Here's a link to a short tutorial on setting up location tracking with OwnTracks and Webhook Relay without exposing Node-RED to the internet: Disclaimer: Webhook Relay is my side project :slight\_smile: Free tier avail…

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## [Node red is not giving http response](https://discourse.nodered.org/t/node-red-is-not-giving-http-response/17485)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 3\
**Last updated:** [5 November 2019 07:54 UTC](https://discourse.nodered.org/t/node-red-is-not-giving-http-response/17485 "2019-11-05T07:54:05Z")

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Below is the flow that I am using, the rest api will internally call the lwm2m service and returns response. I wanted to give the lwm2m service reponse as http reponse. \[{"id":"7ef85b8a.eecf74","type":"lwm2m client in",…

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## [Getting the status of entities in Home Assistant](https://discourse.nodered.org/t/getting-the-status-of-entities-in-home-assistant/17519)

<div class="topic-metadata">

**Author:** [@mdelandgraaf](https://discourse.nodered.org/u/mdelandgraaf)\
**Replies:** 2\
**Last updated:** [5 November 2019 07:29 UTC](https://discourse.nodered.org/t/getting-the-status-of-entities-in-home-assistant/17519 "2019-11-05T07:29:48Z")

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I am using home assistant and node-red to control my lights via a tradfri remote control. As i want to use the center button as toggle, i made a variable that holds the state of the light to change it to the opposite wh…

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## [Nodes for Hue switch not responsive](https://discourse.nodered.org/t/nodes-for-hue-switch-not-responsive/17302)

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**Author:** [@Antil](https://discourse.nodered.org/u/Antil)\
**Replies:** 16\
**Last updated:** [5 November 2019 06:55 UTC](https://discourse.nodered.org/t/nodes-for-hue-switch-not-responsive/17302 "2019-11-05T06:55:25Z")

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I am using the Hue switch node from node-red-contrib-huemagic wired straight into a debug node to capture responses. At most the node will send responses with a significant delay if any. I have configured the switch on t…

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## [Cant send message from xmpp node](https://discourse.nodered.org/t/cant-send-message-from-xmpp-node/17515)

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**Author:** [@mdiehl](https://discourse.nodered.org/u/mdiehl)\
**Replies:** 0\
**Last updated:** [5 November 2019 04:50 UTC](https://discourse.nodered.org/t/cant-send-message-from-xmpp-node/17515 "2019-11-05T04:50:17Z")

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Hi all. I'm trying to send a message from node-red to a jabber server. I get the account logged in and it can receive messages from my chat client. However, when I try to inject a message to the jabber output, it does…

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## [Logo from UI\_Template only display once at start](https://discourse.nodered.org/t/logo-from-ui-template-only-display-once-at-start/17406)

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**Author:** [@abajolle](https://discourse.nodered.org/u/abajolle)\
**Replies:** 11\
**Last updated:** [4 November 2019 23:25 UTC](https://discourse.nodered.org/t/logo-from-ui-template-only-display-once-at-start/17406 "2019-11-04T23:25:50Z")

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Hi dear Node-RED community, I have an issue with what I expected to be a rather simple thing. But I was wrong...:sweat\_smile: I am using a UI\_Template to add an image/logo in the title bar, unfortunately it only briefl…

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## [Support ${msg.foobar} for dynamic input in node editor](https://discourse.nodered.org/t/support-msg-foobar-for-dynamic-input-in-node-editor/17500)

<div class="topic-metadata">

**Author:** [@tb19-nr](https://discourse.nodered.org/u/tb19-nr)\
**Replies:** 2\
**Last updated:** [4 November 2019 21:06 UTC](https://discourse.nodered.org/t/support-msg-foobar-for-dynamic-input-in-node-editor/17500 "2019-11-04T21:06:37Z")

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Hey Guys! o) It seems we can use env vars to set node-properties, like described here: \[https://github.com/node-red/node-red/wiki/Design%3A-Using-environment-variables\] Nice, but ENV vars only? Wot? o) Aren't global/…

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## [How to convert these ;'](https://discourse.nodered.org/t/how-to-convert-these/17488)

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**Author:** [@redlop](https://discourse.nodered.org/u/redlop)\
**Replies:** 2\
**Last updated:** [4 November 2019 20:20 UTC](https://discourse.nodered.org/t/how-to-convert-these/17488 "2019-11-04T20:20:13Z")

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Hi, how do i extract the message payload only? I'm using the merge node currently and this is what im getting. im thinking of using the function node but i dont know how to code it to extract the value.

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## [Can I use different port for websocket comms](https://discourse.nodered.org/t/can-i-use-different-port-for-websocket-comms/17445)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 5\
**Last updated:** [4 November 2019 16:48 UTC](https://discourse.nodered.org/t/can-i-use-different-port-for-websocket-comms/17445 "2019-11-04T16:48:35Z")

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You know the phrase - there's no such thing as a stupid question.... I know how to spell websickets but that's about as far as it goes but I've managed to get a Scratch extension to connect to a websocket listener (if t…

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## [OIDC User is undefined](https://discourse.nodered.org/t/oidc-user-is-undefined/17491)

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**Author:** [@Benjy](https://discourse.nodered.org/u/Benjy)\
**Replies:** 0\
**Last updated:** [4 November 2019 16:42 UTC](https://discourse.nodered.org/t/oidc-user-is-undefined/17491 "2019-11-04T16:42:15Z")

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Hi guys, i just have a problem with my application. We use OIDC with JWT for Login to our application and start node-red as embedded server. When i try to access node-red, it is possible but the login will not be used…

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## [How to update / upgrade on Windows](https://discourse.nodered.org/t/how-to-update-upgrade-on-windows/16111)

<div class="topic-metadata">

**Author:** [@fortin14](https://discourse.nodered.org/u/fortin14)\
**Replies:** 14\
**Last updated:** [4 November 2019 15:52 UTC](https://discourse.nodered.org/t/how-to-update-upgrade-on-windows/16111 "2019-11-04T15:52:42Z")

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What are the steps to update or upgrade Node-Red on Windows?

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## [Gathering results and placing in an array](https://discourse.nodered.org/t/gathering-results-and-placing-in-an-array/17452)

<div class="topic-metadata">

**Author:** [@redlop](https://discourse.nodered.org/u/redlop)\
**Replies:** 4\
**Last updated:** [4 November 2019 15:33 UTC](https://discourse.nodered.org/t/gathering-results-and-placing-in-an-array/17452 "2019-11-04T15:33:56Z")

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Hi, im working on a project that scans the wifi networks nearby with rssi values and I need to print it after scanning. Im using an esp8266 nodemcu. I'm also using node-red and printing it via mqtt using mosquitto. My pr…

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## [Referencing node.name from nodes other than function?](https://discourse.nodered.org/t/referencing-node-name-from-nodes-other-than-function/17469)

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**Author:** [@yamlCase](https://discourse.nodered.org/u/yamlCase)\
**Replies:** 2\
**Last updated:** [4 November 2019 11:20 UTC](https://discourse.nodered.org/t/referencing-node-name-from-nodes-other-than-function/17469 "2019-11-04T11:20:28Z")

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What nodes can I reference my node name from? I know we can use ${node.name} in a function, but are there other nodes that we can maybe use string interpolation to get access to the node's name? The change node is what…

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## [Dimming lights with IKEA remote](https://discourse.nodered.org/t/dimming-lights-with-ikea-remote/17464)

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**Author:** [@raabster](https://discourse.nodered.org/u/raabster)\
**Replies:** 5\
**Last updated:** [4 November 2019 10:44 UTC](https://discourse.nodered.org/t/dimming-lights-with-ikea-remote/17464 "2019-11-04T10:44:08Z")

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So I've been searching around and finding some information in this forum and other places. Just thought I'd share what I've done so far. First off, I've been using Node-RED for two days so nothing ground breaking and I …

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## [Combining two outputs of different datatypes to form a conditional statement](https://discourse.nodered.org/t/combining-two-outputs-of-different-datatypes-to-form-a-conditional-statement/17124)

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**Author:** [@primat11](https://discourse.nodered.org/u/primat11)\
**Replies:** 6\
**Last updated:** [4 November 2019 10:11 UTC](https://discourse.nodered.org/t/combining-two-outputs-of-different-datatypes-to-form-a-conditional-statement/17124 "2019-11-04T10:11:13Z")

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Hello everyone, I have been posting a lot of beginner questions lately as I have been trying to explore some new functionalitites and develop a better understanding. Here begins my new problem: "1. I have a MQTT listen…

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## [Function" particle-function: in Rule engine](https://discourse.nodered.org/t/function-particle-function-in-rule-engine/17470)

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**Author:** [@NODE777](https://discourse.nodered.org/u/NODE777)\
**Replies:** 0\
**Last updated:** [4 November 2019 03:51 UTC](https://discourse.nodered.org/t/function-particle-function-in-rule-engine/17470 "2019-11-04T03:51:31Z")

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Hi, I'm new at Node-Red and also at Rule engine. I got a particle function implemented on Photon device code. I verified the correct function operation using particle console. Apparently the issue I have is setting t…

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## [MQTT retain option](https://discourse.nodered.org/t/mqtt-retain-option/17291)

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**Author:** [@mbc99](https://discourse.nodered.org/u/mbc99)\
**Replies:** 22\
**Last updated:** [4 November 2019 01:02 UTC](https://discourse.nodered.org/t/mqtt-retain-option/17291 "2019-11-04T01:02:23Z")

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So if I understand correctly if I set the retain option to true on and MQTT node each time a client subscribes to a topic the server should send the last retained value. If this is correct I'm doing something wrong. Bec…

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## [\[ANNOUNCE\] Node-RED Desktop v0.9.1 Released](https://discourse.nodered.org/t/announce-node-red-desktop-v0-9-1-released/12247)

<div class="topic-metadata">

**Author:** [@sakazuki](https://discourse.nodered.org/u/sakazuki)\
**Replies:** 6\
**Last updated:** [3 November 2019 23:57 UTC](https://discourse.nodered.org/t/announce-node-red-desktop-v0-9-1-released/12247 "2019-11-03T23:57:55Z")

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Hi all, I have released Node-RED Desktop v0.9.1 . Version 0.9.x bundles Node generator and npm commands(npm link and npm install). These will help you ease to create a custom node on GUI. How to create a custom node …

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## [Removing or making the ui\_text not have a background color](https://discourse.nodered.org/t/removing-or-making-the-ui-text-not-have-a-background-color/1212)

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**Author:** [@Unpuertomex](https://discourse.nodered.org/u/Unpuertomex)\
**Replies:** 2\
**Last updated:** [3 November 2019 22:45 UTC](https://discourse.nodered.org/t/removing-or-making-the-ui-text-not-have-a-background-color/1212 "2019-11-03T22:45:00Z")

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Hello - I figured out how to add a background to my ui using the template node, now I would like to remove the background of the text node, I don’t want a background color, just need it to see through to the new backgrou…

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## [Dashboard - set background color of text node](https://discourse.nodered.org/t/dashboard-set-background-color-of-text-node/3357)

<div class="topic-metadata">

**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 5\
**Last updated:** [3 November 2019 21:52 UTC](https://discourse.nodered.org/t/dashboard-set-background-color-of-text-node/3357 "2019-11-03T21:52:25Z")

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I want to make the background color of a text node dynamic. I think the question is not the first time but i cannot find the right answer on how to do it. What i have now works great: {{msg.payload}} But i also wan…

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## [How to automate drop-down menu selection using Selenium?](https://discourse.nodered.org/t/how-to-automate-drop-down-menu-selection-using-selenium/17372)

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**Author:** [@gv\_gv](https://discourse.nodered.org/u/gv_gv)\
**Replies:** 9\
**Last updated:** [3 November 2019 21:36 UTC](https://discourse.nodered.org/t/how-to-automate-drop-down-menu-selection-using-selenium/17372 "2019-11-03T21:36:48Z")

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Hello, I am trying to make a flow to reach a website, enter user name and password, select an option from a drop down menu and then download the displayed table using selenium palletes. I am not a programmer so know ve…

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## [Interaction between devices using node-red](https://discourse.nodered.org/t/interaction-between-devices-using-node-red/17450)

<div class="topic-metadata">

**Author:** [@realsammcphail](https://discourse.nodered.org/u/realsammcphail)\
**Replies:** 16\
**Last updated:** [3 November 2019 18:36 UTC](https://discourse.nodered.org/t/interaction-between-devices-using-node-red/17450 "2019-11-03T18:36:46Z")

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I have a raspberry pi 3 A+ and pi zero w both with node red. I am trying to setup a button on the Pi Zero Z W and an LED on the Pi 3 A+ so that when the button on the zero is pressed, it will trigger the LED to turn on. …

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## [Load mySQL data to Dashboard Graph](https://discourse.nodered.org/t/load-mysql-data-to-dashboard-graph/17465)

<div class="topic-metadata">

**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 2\
**Last updated:** [3 November 2019 17:13 UTC](https://discourse.nodered.org/t/load-mysql-data-to-dashboard-graph/17465 "2019-11-03T17:13:56Z")

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Dear Node-Red users, is anyone here already load of time series data from an SQL to Graph dashboard? Let say I have a date time picker in my UI, if the user select specific date, it should load specific data from that da…

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## [Best place to generate a key pair](https://discourse.nodered.org/t/best-place-to-generate-a-key-pair/17455)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 6\
**Last updated:** [3 November 2019 16:56 UTC](https://discourse.nodered.org/t/best-place-to-generate-a-key-pair/17455 "2019-11-03T16:56:28Z")

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Hi folks, For one of my new nodes, the user needs to generate a key pair (i.e. private key and corresponding public key). To make the whole thing a bit user-friendly, I would like the user to be able to generate a new …

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