# Latest

**URL:** https://discourse.nodered.org/latest.md?page=310

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

**Page:** 311

---

## [Token request with http Get/Post](https://discourse.nodered.org/t/token-request-with-http-get-post/80700)

<div class="topic-metadata">

**Author:** [@piero.monopoli67](https://discourse.nodered.org/u/piero.monopoli67)\
**Replies:** 0\
**Last updated:** [22 August 2023 00:18 UTC](https://discourse.nodered.org/t/token-request-with-http-get-post/80700 "2023-08-22T00:18:07Z")

</div>

Hi everyone, I'm trying to integrate a system for reading production data of photovoltaic systems with node-red. The manufacturer provided me with information on how to request the token. Once fetched from the first re…

---

## [adminAuth stategy role based permission](https://discourse.nodered.org/t/adminauth-stategy-role-based-permission/80695)

<div class="topic-metadata">

**Author:** [@AMWN](https://discourse.nodered.org/u/AMWN)\
**Replies:** 0\
**Last updated:** [21 August 2023 19:28 UTC](https://discourse.nodered.org/t/adminauth-stategy-role-based-permission/80695 "2023-08-21T19:28:41Z")

</div>

This question is asked before, but no good solution was given. I want the give the user permission base on the group he is in azure ad. I authenticate the users with auth type strategie passport-azure-ad. Just like the e…

---

## [Hold data for a particular time in function node](https://discourse.nodered.org/t/hold-data-for-a-particular-time-in-function-node/80678)

<div class="topic-metadata">

**Author:** [@thahamp](https://discourse.nodered.org/u/thahamp)\
**Replies:** 7\
**Last updated:** [21 August 2023 19:30 UTC](https://discourse.nodered.org/t/hold-data-for-a-particular-time-in-function-node/80678 "2023-08-21T19:30:32Z")

</div>

Hi, I am trying to create an event box from PLC events. At a time, only one event can occur. I have four events: CrustBreaker, ANodeRemoval, CavityScoop, and AnodeInstallation. When any event is active, the event with t…

---

## [When I restart Node-red, or refresh the browser, MQTT broker & nodes show error](https://discourse.nodered.org/t/when-i-restart-node-red-or-refresh-the-browser-mqtt-broker-nodes-show-error/79081)

<div class="topic-metadata">

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 12\
**Last updated:** [21 August 2023 13:43 UTC](https://discourse.nodered.org/t/when-i-restart-node-red-or-refresh-the-browser-mqtt-broker-nodes-show-error/79081 "2023-08-21T13:43:29Z")

</div>

This has started occurring recently, possibly related to installing the beta. Node-red 3.1.0-beta3, npm 16.19.1 is running on a Raspberry Pi Zero 2. Mosquitto 1.5.7 runs on another Pi in the same network. When I resta…

---

## [Node Red memory consumption / "leak" affecting android tablets](https://discourse.nodered.org/t/node-red-memory-consumption-leak-affecting-android-tablets/80522)

<div class="topic-metadata">

**Author:** [@Soiski](https://discourse.nodered.org/u/Soiski)\
**Replies:** 13\
**Last updated:** [21 August 2023 13:27 UTC](https://discourse.nodered.org/t/node-red-memory-consumption-leak-affecting-android-tablets/80522 "2023-08-21T13:27:17Z")

</div>

Hi again, In past I had quite a lot of problems (which I thought I solved) with consuming too much memory (running out of heap memory). After understanding that all the graphs that I was generating ended up eating all av…

---

## [Point a domain to my node red](https://discourse.nodered.org/t/point-a-domain-to-my-node-red/80689)

<div class="topic-metadata">

**Author:** [@richiep](https://discourse.nodered.org/u/richiep)\
**Replies:** 7\
**Last updated:** [21 August 2023 13:03 UTC](https://discourse.nodered.org/t/point-a-domain-to-my-node-red/80689 "2023-08-21T13:03:27Z")

</div>

Hey All, I know this is a pain but I would like to point a domain at my NodeRed. I've hosted a local site myself many years ago. I remember it being a real chore to get it set up. I was a web developer for a while bu…

---

## [Flows stop working until I deploy, work for a few mins and then I need to deploy again](https://discourse.nodered.org/t/flows-stop-working-until-i-deploy-work-for-a-few-mins-and-then-i-need-to-deploy-again/80688)

<div class="topic-metadata">

**Author:** [@benflux](https://discourse.nodered.org/u/benflux)\
**Replies:** 2\
**Last updated:** [21 August 2023 12:40 UTC](https://discourse.nodered.org/t/flows-stop-working-until-i-deploy-work-for-a-few-mins-and-then-i-need-to-deploy-again/80688 "2023-08-21T12:40:32Z")

</div>

I have Node-RED on a Pi. I get myself into a situation where I need to move a node and then re-deploy in order to get the automations working again. They then work for a few minutes until the Node-RED automations stop ag…

---

## [Sending message when nodes are connected](https://discourse.nodered.org/t/sending-message-when-nodes-are-connected/80685)

<div class="topic-metadata">

**Author:** [@chiru](https://discourse.nodered.org/u/chiru)\
**Replies:** 7\
**Last updated:** [21 August 2023 11:57 UTC](https://discourse.nodered.org/t/sending-message-when-nodes-are-connected/80685 "2023-08-21T11:57:45Z")

</div>

Hello, I have created custom nodes in node red by reading the documentation. I have a query regarding sending messages between nodes without using inject node. Specifically, I want to know if there is any way to send me…

---

## [Extracting boolean variables with buffer-parser](https://discourse.nodered.org/t/extracting-boolean-variables-with-buffer-parser/80451)

<div class="topic-metadata">

**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\
**Replies:** 7\
**Last updated:** [21 August 2023 11:06 UTC](https://discourse.nodered.org/t/extracting-boolean-variables-with-buffer-parser/80451 "2023-08-21T11:06:27Z")

</div>

So I have managed to read a whole buffer from a Mitsubishi PLC with the mcprotocol node, and I'm trying to parse the variables with buffer-parser. Integers do not seem to be an issue, I just add the proper offset and I …

---

## [Espresence tracking node-red flow](https://discourse.nodered.org/t/espresence-tracking-node-red-flow/80669)

<div class="topic-metadata">

**Author:** [@the1one](https://discourse.nodered.org/u/the1one)\
**Replies:** 5\
**Last updated:** [21 August 2023 07:04 UTC](https://discourse.nodered.org/t/espresence-tracking-node-red-flow/80669 "2023-08-21T07:04:30Z")

</div>

Hi everyone, I’ve searched and searched but to no avail. The intention is gate opens automatically when I get home. That works. Now I would like when I come from home the gate should not open automatically. Otherwise …

---

## [Dynamic MQTT-in causes other nodes to re-receive retained messages](https://discourse.nodered.org/t/dynamic-mqtt-in-causes-other-nodes-to-re-receive-retained-messages/80682)

<div class="topic-metadata">

**Author:** [@michaelblight](https://discourse.nodered.org/u/michaelblight)\
**Replies:** 3\
**Last updated:** [21 August 2023 06:50 UTC](https://discourse.nodered.org/t/dynamic-mqtt-in-causes-other-nodes-to-re-receive-retained-messages/80682 "2023-08-21T06:50:49Z")

</div>

I have a dynamic MQTT-in node that occasionally subscribes and then later unsubscribes. While I expected this node to receive all relevant retained messages on subscribe, it didn't initially occur to me that all other MQ…

---

## ["wait until" node only forwards one of multiple messages](https://discourse.nodered.org/t/wait-until-node-only-forwards-one-of-multiple-messages/80676)

<div class="topic-metadata">

**Author:** [@skyrock](https://discourse.nodered.org/u/skyrock)\
**Replies:** 9\
**Last updated:** [21 August 2023 00:03 UTC](https://discourse.nodered.org/t/wait-until-node-only-forwards-one-of-multiple-messages/80676 "2023-08-21T00:03:08Z")

</div>

Hello, I only recently discovered Node-RED and use V3.0.2 with Home Assistant. I work on automating my covers depending on the sun position and the weather. What the flow does: starts at a defined sun position (azimu…

---

## [HVAC Haier control](https://discourse.nodered.org/t/hvac-haier-control/80672)

<div class="topic-metadata">

**Author:** [@Hagory85](https://discourse.nodered.org/u/Hagory85)\
**Replies:** 7\
**Last updated:** [20 August 2023 20:18 UTC](https://discourse.nodered.org/t/hvac-haier-control/80672 "2023-08-20T20:18:43Z")

</div>

I have a Haier air conditioner, do you know if it is possible to control it through node red?

---

## [The console says the server has started but the website doesn't load](https://discourse.nodered.org/t/the-console-says-the-server-has-started-but-the-website-doesnt-load/80616)

<div class="topic-metadata">

**Author:** [@Heckencrafter13](https://discourse.nodered.org/u/Heckencrafter13)\
**Replies:** 21\
**Last updated:** [20 August 2023 18:47 UTC](https://discourse.nodered.org/t/the-console-says-the-server-has-started-but-the-website-doesnt-load/80616 "2023-08-20T18:47:20Z")

</div>

Hey guys, so I m currently trying to install Node RED for the first time on a ubuntu server, I used the commands from the documentation and when I use the node-red command the consol says that it has started but when I …

---

## [Splitting and joining an array](https://discourse.nodered.org/t/splitting-and-joining-an-array/80674)

<div class="topic-metadata">

**Author:** [@hugo99](https://discourse.nodered.org/u/hugo99)\
**Replies:** 2\
**Last updated:** [20 August 2023 18:39 UTC](https://discourse.nodered.org/t/splitting-and-joining-an-array/80674 "2023-08-20T18:39:03Z")

</div>

Hi This seems to be an easy one, but I fail :slight\_smile: I am reading a modbus register and get an array back: I am only interested in parts \[0\], \[3\] in order to get back a number: 3579 I was thinking of a split …

---

## [To change the value of a specific cell in Excel file](https://discourse.nodered.org/t/to-change-the-value-of-a-specific-cell-in-excel-file/80634)

<div class="topic-metadata">

**Author:** [@antoniosm](https://discourse.nodered.org/u/antoniosm)\
**Replies:** 39\
**Last updated:** [20 August 2023 17:31 UTC](https://discourse.nodered.org/t/to-change-the-value-of-a-specific-cell-in-excel-file/80634 "2023-08-20T17:31:34Z")

</div>

Hi, I need to change the value on a specific cell in an Excel file using a function. I already searched for the solution in many topics, but I didn't find it. Is this possible on Node Red? thanks in advance Antonio

---

## [Switch node-red to a new device: how to migrate the data?](https://discourse.nodered.org/t/switch-node-red-to-a-new-device-how-to-migrate-the-data/80649)

<div class="topic-metadata">

**Author:** [@Mannshoch](https://discourse.nodered.org/u/Mannshoch)\
**Replies:** 6\
**Last updated:** [20 August 2023 08:47 UTC](https://discourse.nodered.org/t/switch-node-red-to-a-new-device-how-to-migrate-the-data/80649 "2023-08-20T08:47:02Z")

</div>

I have a nodered on a desktop. Currently, all data is in /home/USER/.nodered Now I have a device where I wish another directory for node-red. What are the steps to migrate all data with all flows,subflows and moduls an…

---

## [Combine 2 arrays to feed one graph](https://discourse.nodered.org/t/combine-2-arrays-to-feed-one-graph/80658)

<div class="topic-metadata">

**Author:** [@Danman](https://discourse.nodered.org/u/Danman)\
**Replies:** 4\
**Last updated:** [20 August 2023 06:54 UTC](https://discourse.nodered.org/t/combine-2-arrays-to-feed-one-graph/80658 "2023-08-20T06:54:18Z")

</div>

Hey Guys I need some of your expertise as I have very little with coding, trying to merge 2 arrarys so they can be shown on a graph. Have attach flow with sample data, i have managed to merge them but not in a way that …

---

## [Node-red-node-pibrella: missing RPi.GPIO python library](https://discourse.nodered.org/t/node-red-node-pibrella-missing-rpi-gpio-python-library/80654)

<div class="topic-metadata">

**Author:** [@stefan24](https://discourse.nodered.org/u/stefan24)\
**Replies:** 9\
**Last updated:** [19 August 2023 23:55 UTC](https://discourse.nodered.org/t/node-red-node-pibrella-missing-rpi-gpio-python-library/80654 "2023-08-19T23:55:01Z")

</div>

I know that the pibrella board is not sold anymore, but I still have one and just needed the buzzer for a quick test. In the node-red-node-pibrella doc I can read the following: ## Pre-reqs Requires the RPi.PIO python…

---

## [Reading a file to use in a node's config dialog?](https://discourse.nodered.org/t/reading-a-file-to-use-in-a-nodes-config-dialog/80664)

<div class="topic-metadata">

**Author:** [@Stwissel](https://discourse.nodered.org/u/Stwissel)\
**Replies:** 1\
**Last updated:** [19 August 2023 18:39 UTC](https://discourse.nodered.org/t/reading-a-file-to-use-in-a-nodes-config-dialog/80664 "2023-08-19T18:39:09Z")

</div>

I'm looking at upgrading the node-red-contrib-interactive-ssh node. I'd like to add the ability to allow picking a host configuration from the ~/.ssh/config file. The config dialog runs in a browser, so obviously doesn't…

---

## [Cannot get length of a global array](https://discourse.nodered.org/t/cannot-get-length-of-a-global-array/80663)

<div class="topic-metadata">

**Author:** [@haegar33](https://discourse.nodered.org/u/haegar33)\
**Replies:** 5\
**Last updated:** [19 August 2023 16:11 UTC](https://discourse.nodered.org/t/cannot-get-length-of-a-global-array/80663 "2023-08-19T16:11:08Z")

</div>

This drives me nuts. Must be a simple error somewhere... my function want to retrieve the length of 2 global arrays: var se = global.get("sensors"); var sn = se.length; var li = global.get("lights"); var ln = li.length…

---

## [I am going to create my first node using node red docs](https://discourse.nodered.org/t/i-am-going-to-create-my-first-node-using-node-red-docs/80514)

<div class="topic-metadata">

**Author:** [@bubainayak1](https://discourse.nodered.org/u/bubainayak1)\
**Replies:** 4\
**Last updated:** [19 August 2023 13:49 UTC](https://discourse.nodered.org/t/i-am-going-to-create-my-first-node-using-node-red-docs/80514 "2023-08-19T13:49:27Z")

</div>

Creating your first node I am going to create my first node using node red docs and follow all the steps here is link:Creating your first node : Node-RED but when I am going to run the command as mention in docs ,I am…

---

## [Solis vs Solax inverter](https://discourse.nodered.org/t/solis-vs-solax-inverter/79746)

<div class="topic-metadata">

**Author:** [@grahambaxter](https://discourse.nodered.org/u/grahambaxter)\
**Replies:** 7\
**Last updated:** [19 August 2023 07:56 UTC](https://discourse.nodered.org/t/solis-vs-solax-inverter/79746 "2023-08-19T07:56:23Z")

</div>

I have a Solis hydrid inverter. My neighbour has a Solax hybrid inverter. We have been collaboration on writing node-red interfaces for both, with a lot of help and hints from the forum. In the case of the Solax, we ca…

---

## [Zone presence detection for my kids school](https://discourse.nodered.org/t/zone-presence-detection-for-my-kids-school/80653)

<div class="topic-metadata">

**Author:** [@shedman214](https://discourse.nodered.org/u/shedman214)\
**Replies:** 4\
**Last updated:** [18 August 2023 18:53 UTC](https://discourse.nodered.org/t/zone-presence-detection-for-my-kids-school/80653 "2023-08-18T18:53:40Z")

</div>

I'm Trying to make it when my wife pick up the kids from school, when she leaves that zone and enters home zone. I want the garage to open. Im new to node red and wanted to see if this would work

---

## [Cctv recording and playback (work in progress)](https://discourse.nodered.org/t/cctv-recording-and-playback-work-in-progress/70478)

<div class="topic-metadata">

**Author:** [@kevinGodell](https://discourse.nodered.org/u/kevinGodell)\
**Replies:** 51\
**Last updated:** [18 August 2023 16:17 UTC](https://discourse.nodered.org/t/cctv-recording-and-playback-work-in-progress/70478 "2023-08-18T16:17:00Z")

</div>

I have been experimenting with a different way of recording video from my rtsp ip cams lately. The new technique I have settled on is using a single file byte-range HLS playlist. When the video is recorded and written to…

---

## [Authentication using the httpNodeMiddleware in the settings.js file](https://discourse.nodered.org/t/authentication-using-the-httpnodemiddleware-in-the-settings-js-file/80650)

<div class="topic-metadata">

**Author:** [@mehdichbani](https://discourse.nodered.org/u/mehdichbani)\
**Replies:** 1\
**Last updated:** [18 August 2023 15:53 UTC](https://discourse.nodered.org/t/authentication-using-the-httpnodemiddleware-in-the-settings-js-file/80650 "2023-08-18T15:53:48Z")

</div>

Has anyone successfully implemented authentication through the httpNodeMiddleware, by editing the settings.js file (Basic authentication or authentication using express)?

---

## [Modbus massive reading](https://discourse.nodered.org/t/modbus-massive-reading/80493)

<div class="topic-metadata">

**Author:** [@Luca91](https://discourse.nodered.org/u/Luca91)\
**Replies:** 11\
**Last updated:** [18 August 2023 12:39 UTC](https://discourse.nodered.org/t/modbus-massive-reading/80493 "2023-08-18T12:39:05Z")

</div>

Hi everyone. This is my first experience with Node-Red. Via node-red-contrib-modus I would like to read N registers of N devices. I know how to use these nodes to read the various registers individually, but I would l…

---

## [Node-RED Failing to open](https://discourse.nodered.org/t/node-red-failing-to-open/80644)

<div class="topic-metadata">

**Author:** [@gettmad](https://discourse.nodered.org/u/gettmad)\
**Replies:** 2\
**Last updated:** [18 August 2023 12:34 UTC](https://discourse.nodered.org/t/node-red-failing-to-open/80644 "2023-08-18T12:34:01Z")

</div>

After implementing a 'Complete' node which is triggered upon an MQTT publish node, my Node-RED will no longer launch. When I use the 'node-red' command to launch, in the CMD window I see many error messages which my 'De…

---

## [Interaction between NodeRED instances?](https://discourse.nodered.org/t/interaction-between-nodered-instances/80632)

<div class="topic-metadata">

**Author:** [@Hunter](https://discourse.nodered.org/u/Hunter)\
**Replies:** 11\
**Last updated:** [18 August 2023 11:50 UTC](https://discourse.nodered.org/t/interaction-between-nodered-instances/80632 "2023-08-18T11:50:19Z")

</div>

Hallo, I'm running 2 instances of NodeRED on NGINX in docker. One on port 1880, other on 1882. There are some events which I'd like to share from one instance to the other. What is the best way to do this? Kind regar…

---

## [Invalid endpoint parameters when using node-red-contrib-opcua](https://discourse.nodered.org/t/invalid-endpoint-parameters-when-using-node-red-contrib-opcua/80502)

<div class="topic-metadata">

**Author:** [@LaudemPax](https://discourse.nodered.org/u/LaudemPax)\
**Replies:** 14\
**Last updated:** [18 August 2023 11:03 UTC](https://discourse.nodered.org/t/invalid-endpoint-parameters-when-using-node-red-contrib-opcua/80502 "2023-08-18T11:03:23Z")

</div>

I've tried with many different servers and with different configurations but no matter what I try, I cannot get the connection to the OPCUA server to work. As a clean testing environment, I'm attempting to connect to Pro…

[Previous page](https://discourse.nodered.org/latest.md?page=309)

[Next page](https://discourse.nodered.org/latest.md?page=311)