# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=835

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

**Page:** 836

---

## [Confusion regarding retrieving array from context](https://discourse.nodered.org/t/confusion-regarding-retrieving-array-from-context/16882)

<div class="topic-metadata">

**Author:** [@JayDickson](https://discourse.nodered.org/u/JayDickson)\
**Replies:** 3\
**Last updated:** [21 October 2019 18:54 UTC](https://discourse.nodered.org/t/confusion-regarding-retrieving-array-from-context/16882 "2019-10-21T18:54:40Z")

</div>

I've run into a bit of confusion... I'm working with some rather large CSV files of time series data with a bit of overlap. This is patient data so I can't share exact examples, but what I'm trying to do is combine many…

---

## [Worker or new thread to deal with higher number of tasks and speed up logic?](https://discourse.nodered.org/t/worker-or-new-thread-to-deal-with-higher-number-of-tasks-and-speed-up-logic/16685)

<div class="topic-metadata">

**Author:** [@paulohlp](https://discourse.nodered.org/u/paulohlp)\
**Replies:** 13\
**Last updated:** [21 October 2019 14:41 UTC](https://discourse.nodered.org/t/worker-or-new-thread-to-deal-with-higher-number-of-tasks-and-speed-up-logic/16685 "2019-10-21T14:41:58Z")

</div>

Hi. Noob here. I came across a task that was not very suitable to node-red, the first and only for me. I used node-red to search for strings among more than 50k plus items in a array, the file is up to 16MB(image from f…

---

## [Alarm System with ON/OFF switch](https://discourse.nodered.org/t/alarm-system-with-on-off-switch/16819)

<div class="topic-metadata">

**Author:** [@maku12](https://discourse.nodered.org/u/maku12)\
**Replies:** 8\
**Last updated:** [21 October 2019 10:08 UTC](https://discourse.nodered.org/t/alarm-system-with-on-off-switch/16819 "2019-10-21T10:08:09Z")

</div>

Hi, I want to create an alarm system in node red. I have a Xiaomi Door Sensor which is already implemented in iobroker. The iobroker node sends a message to the Telegram node when the sensor is open, which is already w…

---

## [/red page loading issue - i18next dependency](https://discourse.nodered.org/t/red-page-loading-issue-i18next-dependency/16830)

<div class="topic-metadata">

**Author:** [@dotkam](https://discourse.nodered.org/u/dotkam)\
**Replies:** 17\
**Last updated:** [21 October 2019 09:37 UTC](https://discourse.nodered.org/t/red-page-loading-issue-i18next-dependency/16830 "2019-10-21T09:37:23Z")

</div>

Hi, I experienced an issue opening /red in the browser. I was told to make a separate post for this. Basically, there is an i18next node\_module for translating languages. Deep within that codebase, there is a bug where …

---

## [How to connect rpi camera with homekit](https://discourse.nodered.org/t/how-to-connect-rpi-camera-with-homekit/16915)

<div class="topic-metadata">

**Author:** [@Jez](https://discourse.nodered.org/u/Jez)\
**Replies:** 5\
**Last updated:** [21 October 2019 09:36 UTC](https://discourse.nodered.org/t/how-to-connect-rpi-camera-with-homekit/16915 "2019-10-21T09:36:22Z")

</div>

Hi guys, How do you connect an rpi camera to homekit, I see in the homekit node setup there is a camera option but I’m unsure how to set it up. Cheers,

---

## [Need help with HomeKit level sensor](https://discourse.nodered.org/t/need-help-with-homekit-level-sensor/16939)

<div class="topic-metadata">

**Author:** [@Jez](https://discourse.nodered.org/u/Jez)\
**Replies:** 3\
**Last updated:** [21 October 2019 09:24 UTC](https://discourse.nodered.org/t/need-help-with-homekit-level-sensor/16939 "2019-10-21T09:24:44Z")

</div>

Hi All, I’m trying to add a level sensor (HC-SR04) to homekit. The closest thing I can find is humidity sensor but that labels it as humidity not level. Is there a way to change the humidity tag to level. I’ve pasted t…

---

## [Node-red node list and description](https://discourse.nodered.org/t/node-red-node-list-and-description/16942)

<div class="topic-metadata">

**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 2\
**Last updated:** [21 October 2019 06:01 UTC](https://discourse.nodered.org/t/node-red-node-list-and-description/16942 "2019-10-21T06:01:43Z")

</div>

Bouncing around in this forum for an extremely short time I am looking at the node list and it show some hundreds of nodes. Is there any list that is printable or even viewable that show all nodes and a brief description…

---

## [Cron-plus: not showing entries in config?](https://discourse.nodered.org/t/cron-plus-not-showing-entries-in-config/16921)

<div class="topic-metadata">

**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 16\
**Last updated:** [21 October 2019 00:07 UTC](https://discourse.nodered.org/t/cron-plus-not-showing-entries-in-config/16921 "2019-10-21T00:07:13Z")

</div>

Hi, I'm trying to use cron-plus but I note that when I send a job to it via a msg, it doesn't show in the config - is this deliberate? It would be helpful if you could see what had been sent. Example flow: \[{"id":"1b4…

---

## [Waiting for missing types to be registered (Docker)](https://discourse.nodered.org/t/waiting-for-missing-types-to-be-registered-docker/16933)

<div class="topic-metadata">

**Author:** [@Jmilesy](https://discourse.nodered.org/u/Jmilesy)\
**Replies:** 11\
**Last updated:** [20 October 2019 21:09 UTC](https://discourse.nodered.org/t/waiting-for-missing-types-to-be-registered-docker/16933 "2019-10-20T21:09:19Z")

</div>

I have just loaded node-red this evening and the GUI has stil not loaded on the xxx.xxx.xxx.xxx:1880 page 20 Oct 19:46:31 - \[info\] Node-RED version: v1.0.2 20 Oct 19:46:31 - \[info\] Node.js version: v10.16.3 20 Oct …

---

## [Node-red-contrib-bool-gate always returns null](https://discourse.nodered.org/t/node-red-contrib-bool-gate-always-returns-null/16926)

<div class="topic-metadata">

**Author:** [@brian](https://discourse.nodered.org/u/brian)\
**Replies:** 2\
**Last updated:** [20 October 2019 19:06 UTC](https://discourse.nodered.org/t/node-red-contrib-bool-gate-always-returns-null/16926 "2019-10-20T19:06:16Z")

</div>

Hi i am having abit of an issue with the node-red-contrib-bool-gate. no matter what i do, it always outputs null, even when the node displays the correct state. need help would be appreciated. this is my flows: \[{"i…

---

## [node.log("Hello World") doesn't log but node.warn("Hello from log.warn()") works](https://discourse.nodered.org/t/node-log-hello-world-doesnt-log-but-node-warn-hello-from-log-warn-works/16932)

<div class="topic-metadata">

**Author:** [@jtmoderate876](https://discourse.nodered.org/u/jtmoderate876)\
**Replies:** 2\
**Last updated:** [20 October 2019 18:58 UTC](https://discourse.nodered.org/t/node-log-hello-world-doesnt-log-but-node-warn-hello-from-log-warn-works/16932 "2019-10-20T18:58:33Z")

</div>

Any ideas what I might have done? on node-red v 1.0.1 node.log() in my function nodes doesn't produce anything in my output window ? node.warn() works.

---

## [Mon if ne fonctionne pas](https://discourse.nodered.org/t/mon-if-ne-fonctionne-pas/16902)

<div class="topic-metadata">

**Author:** [@Mlebailly22](https://discourse.nodered.org/u/Mlebailly22)\
**Replies:** 4\
**Last updated:** [20 October 2019 18:25 UTC](https://discourse.nodered.org/t/mon-if-ne-fonctionne-pas/16902 "2019-10-20T18:25:56Z")

</div>

Bonjour, Je vous mais si dessous un code qui se trouve dans la node "fonctions" et mon probleme est simple dans cette fonctions j'ai l'heure qui arrive sous la forme hh:mm:ss mais j'ai l'impression que peut importe l'he…

---

## [Split / loop array to get correct value](https://discourse.nodered.org/t/split-loop-array-to-get-correct-value/16929)

<div class="topic-metadata">

**Author:** [@menno](https://discourse.nodered.org/u/menno)\
**Replies:** 2\
**Last updated:** [20 October 2019 18:16 UTC](https://discourse.nodered.org/t/split-loop-array-to-get-correct-value/16929 "2019-10-20T18:16:36Z")

</div>

hi guys i hope you can help me out here first i want to make a flow that outputs all wifi connected devices i use Unifi access point and my Unifi node is working OK. the debug output of my unifi node is : array\[1\] 0…

---

## [Tcp: howto close inbound connection](https://discourse.nodered.org/t/tcp-howto-close-inbound-connection/16850)

<div class="topic-metadata">

**Author:** [@billyrudi](https://discourse.nodered.org/u/billyrudi)\
**Replies:** 5\
**Last updated:** [20 October 2019 12:04 UTC](https://discourse.nodered.org/t/tcp-howto-close-inbound-connection/16850 "2019-10-20T12:04:43Z")

</div>

Hi, how i can clos tcp client connection for the current session client? regards Paolo

---

## [Sub-flows. I am missing something in how they work](https://discourse.nodered.org/t/sub-flows-i-am-missing-something-in-how-they-work/16910)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 26\
**Last updated:** [20 October 2019 10:53 UTC](https://discourse.nodered.org/t/sub-flows-i-am-missing-something-in-how-they-work/16910 "2019-10-20T10:53:02Z")

</div>

Sorry, but this has me stumped. I have/had a bunch of nodes which were painful for me to maintain and so I made a subflow of them. Heaps easier to roll out updates to them. Rather than having to edit them all, I just …

---

## [Cron-plus max number of timers](https://discourse.nodered.org/t/cron-plus-max-number-of-timers/16908)

<div class="topic-metadata">

**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 2\
**Last updated:** [20 October 2019 02:25 UTC](https://discourse.nodered.org/t/cron-plus-max-number-of-timers/16908 "2019-10-20T02:25:26Z")

</div>

Playing with cron-plus and for a little bit was seeing some weird responses. Finally figured out it was my code but it started when I added some timers. There are 21 timers now and it works but I was wondering if there w…

---

## [Sqlite select query not returning data](https://discourse.nodered.org/t/sqlite-select-query-not-returning-data/16742)

<div class="topic-metadata">

**Author:** [@Petr](https://discourse.nodered.org/u/Petr)\
**Replies:** 13\
**Last updated:** [20 October 2019 00:59 UTC](https://discourse.nodered.org/t/sqlite-select-query-not-returning-data/16742 "2019-10-20T00:59:23Z")

</div>

I have a relatively big SQL SELECT query (44 lines). On the locally deployed sqlite database query works. On the server query works as well (server is the machine, where node-red runs + database file is deployed). Fro…

---

## [Homekit and Deployment](https://discourse.nodered.org/t/homekit-and-deployment/16015)

<div class="topic-metadata">

**Author:** [@bskitter](https://discourse.nodered.org/u/bskitter)\
**Replies:** 6\
**Last updated:** [19 October 2019 21:19 UTC](https://discourse.nodered.org/t/homekit-and-deployment/16015 "2019-10-19T21:19:15Z")

</div>

Hello all, I am having an annoying issue with NodeRedand the Homekit app, when I make a change to a flow and deploy that changen the homekit node becomes unresponsive to inputs and outputs within the flow. But if I send…

---

## [Missing UDP In node in Node-RED](https://discourse.nodered.org/t/missing-udp-in-node-in-node-red/7062)

<div class="topic-metadata">

**Author:** [@Ryzen120](https://discourse.nodered.org/u/Ryzen120)\
**Replies:** 10\
**Last updated:** [19 October 2019 20:31 UTC](https://discourse.nodered.org/t/missing-udp-in-node-in-node-red/7062 "2019-10-19T20:31:32Z")

</div>

Hello, As I was building my projects flow in Node-Red, I came to the part where you must implement a UDP in node to communicate with a debug node. However, my available nodes only have UDP out. Any help or advice would …

---

## [Dash (-) in array data](https://discourse.nodered.org/t/dash-in-array-data/16899)

<div class="topic-metadata">

**Author:** [@pooyatavan](https://discourse.nodered.org/u/pooyatavan)\
**Replies:** 2\
**Last updated:** [19 October 2019 20:24 UTC](https://discourse.nodered.org/t/dash-in-array-data/16899 "2019-10-19T20:24:33Z")

</div>

hi everyone, i have a problem with array. in my data i have somthing like this in my array: array\[1\] 0: object name: "ether5" rx-packets-per-second: "2" rx-bits-per-second: "1200" fp-rx-packets-per-second: "2" fp…

---

## [Calculating water flow rate from water meter](https://discourse.nodered.org/t/calculating-water-flow-rate-from-water-meter/3545)

<div class="topic-metadata">

**Author:** [@themanfrommoon](https://discourse.nodered.org/u/themanfrommoon)\
**Replies:** 20\
**Last updated:** [19 October 2019 18:23 UTC](https://discourse.nodered.org/t/calculating-water-flow-rate-from-water-meter/3545 "2019-10-19T18:23:17Z")

</div>

Hello, I want to publish the current flowrate of my water meter to MQTT. The watermeter gives a pulse every 0,5L. I have following data from my Push Server: timestamp=1538162426119 value=5.4418313576462 timestamp=15…

---

## [Topic for mqtt node?](https://discourse.nodered.org/t/topic-for-mqtt-node/16890)

<div class="topic-metadata">

**Author:** [@ruraldev](https://discourse.nodered.org/u/ruraldev)\
**Replies:** 5\
**Last updated:** [19 October 2019 17:21 UTC](https://discourse.nodered.org/t/topic-for-mqtt-node/16890 "2019-10-19T17:21:57Z")

</div>

I'm a newbie to node red and I just can't seem to work out the correct topic value for an MQTT node, I am using Tasmota on a Sonoff device and Mosquitto MQTT. If I use "#" as the topic value I get tele/sonoff/SENSOR : …

---

## [Node-RED in Docker without a volume](https://discourse.nodered.org/t/node-red-in-docker-without-a-volume/16888)

<div class="topic-metadata">

**Author:** [@mode](https://discourse.nodered.org/u/mode)\
**Replies:** 1\
**Last updated:** [19 October 2019 17:19 UTC](https://discourse.nodered.org/t/node-red-in-docker-without-a-volume/16888 "2019-10-19T17:19:20Z")

</div>

Hi, i created a docker container like this: docker run -it -p 1880:1880 --name mynodered nodered/node-red A few weeks later i did an update: $ docker stop mynodered $ docker pull nodered/node-red Using default tag: l…

---

## [Is v1.0.2 the "current" version?](https://discourse.nodered.org/t/is-v1-0-2-the-current-version/16865)

<div class="topic-metadata">

**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 5\
**Last updated:** [19 October 2019 15:57 UTC](https://discourse.nodered.org/t/is-v1-0-2-the-current-version/16865 "2019-10-19T15:57:10Z")

</div>

I'm updating my systems one by one with the bash script. Its cleaning up the "node installed globally" issues from prior versions nicely, which makes "Manage Pallet" really nice. Is this the current version? Does this…

---

## [Extracting info from API](https://discourse.nodered.org/t/extracting-info-from-api/16884)

<div class="topic-metadata">

**Author:** [@surfershort](https://discourse.nodered.org/u/surfershort)\
**Replies:** 8\
**Last updated:** [19 October 2019 15:54 UTC](https://discourse.nodered.org/t/extracting-info-from-api/16884 "2019-10-19T15:54:53Z")

</div>

Hi i need to extract some data from an API here http://data.channelcoast.org/observations/waves/latest?key=6cefd36d8e12a4dead4cf06d4dbd09c0 using a HTTP request i need to get the data of the latest wave height (ms:hs) fo…

---

## [Node red websocket multiple data send to web page](https://discourse.nodered.org/t/node-red-websocket-multiple-data-send-to-web-page/16766)

<div class="topic-metadata">

**Author:** [@Squirrelbd](https://discourse.nodered.org/u/Squirrelbd)\
**Replies:** 6\
**Last updated:** [19 October 2019 13:38 UTC](https://discourse.nodered.org/t/node-red-websocket-multiple-data-send-to-web-page/16766 "2019-10-19T13:38:09Z")

</div>

I can send single data from node-red to web page using the following flow. \[{"id":"38ea9d64.e96db2","type":"inject","z":"39ebd91b.6a6e86","name":"","topic":"","payload":"111111","payloadType":"str","repeat":"","crontab"…

---

## [Flows stopped due to missing node types. serial-port](https://discourse.nodered.org/t/flows-stopped-due-to-missing-node-types-serial-port/16867)

<div class="topic-metadata">

**Author:** [@Duncan](https://discourse.nodered.org/u/Duncan)\
**Replies:** 5\
**Last updated:** [19 October 2019 08:20 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-missing-node-types-serial-port/16867 "2019-10-19T08:20:19Z")

</div>

I have node-red running on 1.0 without any issues. After installing version 1.02 I get a fault with the serial-node. Flows stopped due to missing node types. serial-port. This pops up even with a fresh installation and n…

---

## [How to define node-red's page reference permissions?](https://discourse.nodered.org/t/how-to-define-node-reds-page-reference-permissions/16839)

<div class="topic-metadata">

**Author:** [@Jack](https://discourse.nodered.org/u/Jack)\
**Replies:** 2\
**Last updated:** [19 October 2019 01:47 UTC](https://discourse.nodered.org/t/how-to-define-node-reds-page-reference-permissions/16839 "2019-10-19T01:47:27Z")

</div>

I want to integrate the node-red page into other systems, node-red is required to the same domain name to be embedded, is there any way to set?

---

## [OPC write/read problem](https://discourse.nodered.org/t/opc-write-read-problem/16845)

<div class="topic-metadata">

**Author:** [@petrdolejs](https://discourse.nodered.org/u/petrdolejs)\
**Replies:** 1\
**Last updated:** [19 October 2019 01:12 UTC](https://discourse.nodered.org/t/opc-write-read-problem/16845 "2019-10-19T01:12:33Z")

</div>

Hello guys, I've problem with OPC. I need to read the value through the OPC and after that write the value through the OPC, but only in one line. Is it even possible? Thanks for reply.

---

## [Additional Palette items](https://discourse.nodered.org/t/additional-palette-items/16858)

<div class="topic-metadata">

**Author:** [@biz](https://discourse.nodered.org/u/biz)\
**Replies:** 2\
**Last updated:** [18 October 2019 21:57 UTC](https://discourse.nodered.org/t/additional-palette-items/16858 "2019-10-18T21:57:05Z")

</div>

Hello Guys I have convinced the business I work for to use this as a proof of concept for API dev before we put it in production. The slight problem i am running into is I want to add additional Palettes such as the da…

[Previous page](https://discourse.nodered.org/c/general/7.md?page=834)

[Next page](https://discourse.nodered.org/c/general/7.md?page=836)