# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=539

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

**Page:** 540

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## [I cant update UI template!](https://discourse.nodered.org/t/i-cant-update-ui-template/47031)

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**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\
**Replies:** 10\
**Last updated:** [11 June 2021 16:57 UTC](https://discourse.nodered.org/t/i-cant-update-ui-template/47031 "2021-06-11T16:57:11Z")

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hi I cant update data injected to Ui telpmate until reload Tabs !!! whay any help \[{"id":"fadb2f93.c61ec8","type":"ui\_template","z":"3bab7d86.a7d252","group":"917f331.ee040d","name":"Head","order":3,"width":"16","heig…

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## [Flows stopped due to missing node types. nodebot](https://discourse.nodered.org/t/flows-stopped-due-to-missing-node-types-nodebot/47039)

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**Author:** [@Chris247](https://discourse.nodered.org/u/Chris247)\
**Replies:** 2\
**Last updated:** [11 June 2021 16:45 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-missing-node-types-nodebot/47039 "2021-06-11T16:45:04Z")

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Greetings , after trying to use node-red dashboard i got the following error . " Flows stopped due to missing node types. nodebot " I've tried to completely remove node-red from my system , but with no luck. Ever…

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## [Extract all email headers from an eml file?](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949)

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**Author:** [@crester](https://discourse.nodered.org/u/crester)\
**Replies:** 4\
**Last updated:** [11 June 2021 15:54 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949 "2021-06-11T15:54:01Z")

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Hello. I need to extract all e-mail headers from a eml file and write them in a separate file I have seen mailparser contrib but it doesn't work does someone know how can I perform this action in node red? Thank you. …

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## [Separate port for editor ui and server](https://discourse.nodered.org/t/separate-port-for-editor-ui-and-server/46942)

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**Author:** [@gombertd](https://discourse.nodered.org/u/gombertd)\
**Replies:** 7\
**Last updated:** [11 June 2021 15:53 UTC](https://discourse.nodered.org/t/separate-port-for-editor-ui-and-server/46942 "2021-06-11T15:53:12Z")

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I am surprise that we cannot have different port for the editor ui and the actual server. Reading documentation it state that uiPort change the listening port for the editor ui. But it also change the port of the http in…

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## [Dragino LWL01 - decoding payload](https://discourse.nodered.org/t/dragino-lwl01-decoding-payload/47032)

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**Author:** [@Secundus](https://discourse.nodered.org/u/Secundus)\
**Replies:** 1\
**Last updated:** [11 June 2021 15:25 UTC](https://discourse.nodered.org/t/dragino-lwl01-decoding-payload/47032 "2021-06-11T15:25:45Z")

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Hi everybody, I have a small issue concerning decoding the payload of the Dragino LWL01 sensor. The sensor gives off data, which I receive (as should) as a payloadstring. (take 0B 76 02 00 00 17 00 00 00, for example) …

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## [How to call the HTTP api](https://discourse.nodered.org/t/how-to-call-the-http-api/47022)

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**Author:** [@lei1](https://discourse.nodered.org/u/lei1)\
**Replies:** 3\
**Last updated:** [11 June 2021 14:32 UTC](https://discourse.nodered.org/t/how-to-call-the-http-api/47022 "2021-06-11T14:32:42Z")

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How do I call the method reload, as shown in the diagram, and can I call it in the function node? Which method is used?

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## [Find and replace](https://discourse.nodered.org/t/find-and-replace/47025)

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**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 3\
**Last updated:** [11 June 2021 13:33 UTC](https://discourse.nodered.org/t/find-and-replace/47025 "2021-06-11T13:33:35Z")

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I have two object, obj1: {"16401":0,"16402":0,"16403":32768,"16404":0,"16405":0} and obj2: {"0":{"Address":16401,"Name":"EE\_Time\_Cfg\_i\_TimeZoneOffset","val":0,"Default1":"60","Unit":"min","Description":"Przesuniecie…

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## [Using REST API call with http request object](https://discourse.nodered.org/t/using-rest-api-call-with-http-request-object/46985)

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**Author:** [@laurialo](https://discourse.nodered.org/u/laurialo)\
**Replies:** 4\
**Last updated:** [11 June 2021 12:22 UTC](https://discourse.nodered.org/t/using-rest-api-call-with-http-request-object/46985 "2021-06-11T12:22:24Z")

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Hello ! Foe example i have following curl example tht useses token for authentification curl --header "Authorization: X-Road-ApiKey token=c6804432-37f8-43e3-b3f1-b7bd0b1ac3b0" "https://127.0.0.1:4000/api/v1/member-clas…

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## [Modbus tcp error](https://discourse.nodered.org/t/modbus-tcp-error/47026)

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**Author:** [@jorge7](https://discourse.nodered.org/u/jorge7)\
**Replies:** 1\
**Last updated:** [11 June 2021 12:06 UTC](https://discourse.nodered.org/t/modbus-tcp-error/47026 "2021-06-11T12:06:54Z")

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Hello, I am trying to read data from Modbus tcp but I receive this error: "Error: Modbus exception 3: Illegal data value (value cannot be written to this register)" Thanks and regards.

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## [Trigger an event when Node-Red starts, but not on deploy](https://discourse.nodered.org/t/trigger-an-event-when-node-red-starts-but-not-on-deploy/47017)

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**Author:** [@bogorad](https://discourse.nodered.org/u/bogorad)\
**Replies:** 2\
**Last updated:** [11 June 2021 11:05 UTC](https://discourse.nodered.org/t/trigger-an-event-when-node-red-starts-but-not-on-deploy/47017 "2021-06-11T11:05:20Z")

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I'd like to trigger an event when NR first starts, but I don't want to get it each time I hit 'deploy'. "Inject with init" node does the latter, unfortunately.

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## [Serial node glitch under docker ?!](https://discourse.nodered.org/t/serial-node-glitch-under-docker/46982)

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**Author:** [@Jean-Luc](https://discourse.nodered.org/u/Jean-Luc)\
**Replies:** 5\
**Last updated:** [11 June 2021 08:51 UTC](https://discourse.nodered.org/t/serial-node-glitch-under-docker/46982 "2021-06-11T08:51:52Z")

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Hello to all. Since a few weeks, I have been focusing my flows on NR docker. I am using the serial node I/O and I am experiencing random faults on this port since this change. Moreover it runs in an orangePi. So a dif…

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## [Problems installing the module](https://discourse.nodered.org/t/problems-installing-the-module/47015)

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**Author:** [@lei1](https://discourse.nodered.org/u/lei1)\
**Replies:** 2\
**Last updated:** [11 June 2021 08:19 UTC](https://discourse.nodered.org/t/problems-installing-the-module/47015 "2021-06-11T08:19:41Z")

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The nodered/node-red-docker :latest version installs fine, but the nodered/node-red:latest-minimal version gives an error.

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## [When the alert passes (the average temperature in the last 15 minutes is less than 27.0 ºC) send a normal email to users](https://discourse.nodered.org/t/when-the-alert-passes-the-average-temperature-in-the-last-15-minutes-is-less-than-27-0-c-send-a-normal-email-to-users/47012)

<div class="topic-metadata">

**Author:** [@mimecosa](https://discourse.nodered.org/u/mimecosa)\
**Replies:** 0\
**Last updated:** [11 June 2021 07:07 UTC](https://discourse.nodered.org/t/when-the-alert-passes-the-average-temperature-in-the-last-15-minutes-is-less-than-27-0-c-send-a-normal-email-to-users/47012 "2021-06-11T07:07:03Z")

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Hello! I'm setting up a temperature alert system. When the temperature is between 17 and 24 degrees it is considered normal, once this range has passed an alert is sent. I would like to know how another notification can…

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## [Ads1115 dropping requests](https://discourse.nodered.org/t/ads1115-dropping-requests/46004)

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**Author:** [@megas](https://discourse.nodered.org/u/megas)\
**Replies:** 12\
**Last updated:** [11 June 2021 05:54 UTC](https://discourse.nodered.org/t/ads1115-dropping-requests/46004 "2021-06-11T05:54:47Z")

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hello there ...am currently using an ads1115 adc to read some sensors, however i have run in to issues with the system as it is consistently dropping requests the adc channels have been properly configured \[in tree li…

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## [Retain data after power cycle](https://discourse.nodered.org/t/retain-data-after-power-cycle/47008)

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**Author:** [@kiran007](https://discourse.nodered.org/u/kiran007)\
**Replies:** 1\
**Last updated:** [11 June 2021 05:14 UTC](https://discourse.nodered.org/t/retain-data-after-power-cycle/47008 "2021-06-11T05:14:47Z")

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I developed a custom node that accepts some info like username, password, etc, If I open the property window and submit the information, let say after the power cycle of node-red(switch on and off node-red server) the i…

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## [How to conditionally pass-through a numeric value](https://discourse.nodered.org/t/how-to-conditionally-pass-through-a-numeric-value/46981)

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**Author:** [@steerage250](https://discourse.nodered.org/u/steerage250)\
**Replies:** 3\
**Last updated:** [11 June 2021 03:24 UTC](https://discourse.nodered.org/t/how-to-conditionally-pass-through-a-numeric-value/46981 "2021-06-11T03:24:24Z")

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I want logic that will pass-through a numeric value input if an input\_boolean is true. I have a feeling the Switch node is an appropriate node, but am having trouble defining the condition correctly. Should I be select…

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## [Single to batch influxdb](https://discourse.nodered.org/t/single-to-batch-influxdb/46900)

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**Author:** [@subwayfootlong](https://discourse.nodered.org/u/subwayfootlong)\
**Replies:** 6\
**Last updated:** [11 June 2021 02:20 UTC](https://discourse.nodered.org/t/single-to-batch-influxdb/46900 "2021-06-11T02:20:11Z")

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Hello guys, I would like to know how to input this string into influxdb using a batch node. \[{"name":"airflow","description":"","unit":"","values":\[{"value":0,"timestamp":"2021-06-09T08:40:46.237Z"}\]},{"name":"current",…

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## [Disable interactive events for ui-table?](https://discourse.nodered.org/t/disable-interactive-events-for-ui-table/47002)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 0\
**Last updated:** [11 June 2021 00:07 UTC](https://discourse.nodered.org/t/disable-interactive-events-for-ui-table/47002 "2021-06-11T00:07:40Z")

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Been looking for an example of how to disable interactive events, keyboard and mouse, for a ui-table. Or should I just create a table via a ui-template? I also want in due course to highlight each row of the table from…

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## [Dynamic path for webhook node](https://discourse.nodered.org/t/dynamic-path-for-webhook-node/46907)

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**Author:** [@ihssane](https://discourse.nodered.org/u/ihssane)\
**Replies:** 2\
**Last updated:** [10 June 2021 23:38 UTC](https://discourse.nodered.org/t/dynamic-path-for-webhook-node/46907 "2021-06-10T23:38:27Z")

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Hello ! I want to implement a dynamic Websocket endpoint , like using a variable inside the path /ws/simple/ID where the ID is dynamic , how can I implement this ? or is there's any other solutions ?

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## [Asynchronous button?](https://discourse.nodered.org/t/asynchronous-button/46948)

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**Author:** [@goglobal](https://discourse.nodered.org/u/goglobal)\
**Replies:** 9\
**Last updated:** [10 June 2021 21:00 UTC](https://discourse.nodered.org/t/asynchronous-button/46948 "2021-06-10T21:00:39Z")

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Hello everyone, I got the new bme688 that has an improved gas sensor. I have set it under the sink where I have the bin/trash. The idea is that if food begins to smell too much I will get an alert message. However, at t…

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## [\[Announce\] updated Linux install script](https://discourse.nodered.org/t/announce-updated-linux-install-script/46998)

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**Author:** [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Replies:** 0\
**Last updated:** [10 June 2021 18:36 UTC](https://discourse.nodered.org/t/announce-updated-linux-install-script/46998 "2021-06-10T18:36:40Z")

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To go along with the v2 beta I have updated the Linux install script to have some more command line switches to hopefully give you more control of what you may want to install as usual you can run it from remote bash \<(…

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## [Sending rtsp camera streaming over internet](https://discourse.nodered.org/t/sending-rtsp-camera-streaming-over-internet/46606)

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**Author:** [@Lupin\_III](https://discourse.nodered.org/u/Lupin_III)\
**Replies:** 60\
**Last updated:** [10 June 2021 16:40 UTC](https://discourse.nodered.org/t/sending-rtsp-camera-streaming-over-internet/46606 "2021-06-10T16:40:03Z")

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Hi, maybe this request can appear a bit strange. Thanks all the topics and comments I have no problem in showing an IP camera streaming on the dashboard as rtsp. But I can only do it locally since my provider doesn't pr…

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## [I need help, search within a sql database](https://discourse.nodered.org/t/i-need-help-search-within-a-sql-database/46977)

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**Author:** [@ultim0](https://discourse.nodered.org/u/ultim0)\
**Replies:** 3\
**Last updated:** [10 June 2021 14:40 UTC](https://discourse.nodered.org/t/i-need-help-search-within-a-sql-database/46977 "2021-06-10T14:40:09Z")

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I want to search for a certain table within the sql database, and view the contents of a certain period. All via the nodered interface. Do you have any advice ????

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## [Issue with building array (create undefined row)](https://discourse.nodered.org/t/issue-with-building-array-create-undefined-row/46987)

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**Author:** [@bigman](https://discourse.nodered.org/u/bigman)\
**Replies:** 2\
**Last updated:** [10 June 2021 14:23 UTC](https://discourse.nodered.org/t/issue-with-building-array-create-undefined-row/46987 "2021-06-10T14:23:28Z")

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Hi, I have an issue with my flow (i think it used to work on previous node-red version). When i delete a line from a splitting \[5\] array i have still \[5\] array but with undefined row even if only 4 messages are sent t…

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## [Conditional inputs issue](https://discourse.nodered.org/t/conditional-inputs-issue/46916)

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**Author:** [@edwardr](https://discourse.nodered.org/u/edwardr)\
**Replies:** 4\
**Last updated:** [10 June 2021 14:19 UTC](https://discourse.nodered.org/t/conditional-inputs-issue/46916 "2021-06-10T14:19:56Z")

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Hello folks, I am currently working on a project where I have data running through a function. What I want is the function to not return any data unless a additional input condition is met. So there two inputs - one …

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## [Store content variables permanently](https://discourse.nodered.org/t/store-content-variables-permanently/46986)

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**Author:** [@Pinky](https://discourse.nodered.org/u/Pinky)\
**Replies:** 2\
**Last updated:** [10 June 2021 13:16 UTC](https://discourse.nodered.org/t/store-content-variables-permanently/46986 "2021-06-10T13:16:35Z")

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Hi everybody, I am running node red on a raspberry pi 4 (8gb) as an instance of iobroker. That means Paths and so on are not as given in the usual installation way but different. I noticed, that all my variables are lo…

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## [Install an older version of Node-RED](https://discourse.nodered.org/t/install-an-older-version-of-node-red/46974)

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**Author:** [@JoachimCo](https://discourse.nodered.org/u/JoachimCo)\
**Replies:** 2\
**Last updated:** [10 June 2021 12:41 UTC](https://discourse.nodered.org/t/install-an-older-version-of-node-red/46974 "2021-06-10T12:41:18Z")

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Hello to all, I would like to install an older version of Node-RED on the Pi. The reason is that in the current version of Node-RED, the SenseHAT is not queried properly. Unfortunately, I could not find a way or instruc…

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## [Problem Installing node-red-node-pi-gpiod](https://discourse.nodered.org/t/problem-installing-node-red-node-pi-gpiod/46935)

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**Author:** [@Hessianerd](https://discourse.nodered.org/u/Hessianerd)\
**Replies:** 4\
**Last updated:** [10 June 2021 12:24 UTC](https://discourse.nodered.org/t/problem-installing-node-red-node-pi-gpiod/46935 "2021-06-10T12:24:19Z")

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When I try to add the pi-gpiod node from the web interface I get an "Error Install failed" message, with the following message in the event log: "added 15 packages from 3 contributors and removed 302 packages in 128.05…

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## [Payload inside style element](https://discourse.nodered.org/t/payload-inside-style-element/46964)

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**Author:** [@watwat](https://discourse.nodered.org/u/watwat)\
**Replies:** 1\
**Last updated:** [10 June 2021 10:34 UTC](https://discourse.nodered.org/t/payload-inside-style-element/46964 "2021-06-10T10:34:49Z")

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I am trying to have a color picker that sends a payload with color data, where the background of the whole dashboard should be changed on sent. The easiest way to do so what I've found, is to use a Template node that tak…

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## [Installing npm packages in docker - nodered](https://discourse.nodered.org/t/installing-npm-packages-in-docker-nodered/46972)

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**Author:** [@crester](https://discourse.nodered.org/u/crester)\
**Replies:** 0\
**Last updated:** [10 June 2021 09:46 UTC](https://discourse.nodered.org/t/installing-npm-packages-in-docker-nodered/46972 "2021-06-10T09:46:14Z")

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Hello is it possible to install packages inside docker nodered? I try to install eml-parser, html-pdf and mailparser and I have lots of errors I am just a simple docker user (up to docker run....) thank you

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