# General **URL:** https://discourse.nodered.org/c/general/7.md?page=465 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 466 --- ## [Ingesting and digesting API best practice](https://discourse.nodered.org/t/ingesting-and-digesting-api-best-practice/53966)
**Author:** [@jmorris644](https://discourse.nodered.org/u/jmorris644)\ **Replies:** 3\ **Last updated:** [18 November 2021 21:35 UTC](https://discourse.nodered.org/t/ingesting-and-digesting-api-best-practice/53966 "2021-11-18T21:35:34Z")
It is looking like I will need to start working with a number of APIs. I have not worked with APIs with NR. I was just looking for some best practices. The API interfaces will have to do both reads and updates. Thanks --- ## [Editor Text Size](https://discourse.nodered.org/t/editor-text-size/53944)
**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\ **Replies:** 8\ **Last updated:** [18 November 2021 19:11 UTC](https://discourse.nodered.org/t/editor-text-size/53944 "2021-11-18T19:11:52Z")
I searched to see if this was addressed yet however I did not find any relative content (which kinda surprised me).. When I size my browser screen such that the tabs and flows (and most importantly, the Dashboard) are c… --- ## [Subscribe to topics like in iobroker VIS](https://discourse.nodered.org/t/subscribe-to-topics-like-in-iobroker-vis/53963)
**Author:** [@Schmtterfliege](https://discourse.nodered.org/u/Schmtterfliege)\ **Replies:** 0\ **Last updated:** [18 November 2021 19:06 UTC](https://discourse.nodered.org/t/subscribe-to-topics-like-in-iobroker-vis/53963 "2021-11-18T19:06:49Z")
Hi, I'm trying to convert everything I had (scripts and visualization) in IoBroker to Node-RED. But somehow I can't find a good way to "subscribe" to my datapoints. The iobroker-get node needs to be triggered "manuall… --- ## [Modbus tcp IP HOST from msg](https://discourse.nodered.org/t/modbus-tcp-ip-host-from-msg/53436)
**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\ **Replies:** 3\ **Last updated:** [18 November 2021 18:38 UTC](https://discourse.nodered.org/t/modbus-tcp-ip-host-from-msg/53436 "2021-11-18T18:38:32Z")
How to configure IP HOST from msg --- ## [Homey-Bridge or alternatives for a new (to be) build house](https://discourse.nodered.org/t/homey-bridge-or-alternatives-for-a-new-to-be-build-house/53869)
**Author:** [@Nice\_to\_have](https://discourse.nodered.org/u/Nice_to_have)\ **Replies:** 3\ **Last updated:** [18 November 2021 16:43 UTC](https://discourse.nodered.org/t/homey-bridge-or-alternatives-for-a-new-to-be-build-house/53869 "2021-11-18T16:43:17Z")
Hello everyone, The decision is made to build our own house. That, for me, means we can make an awesome automated home. My idea is to use wireless switches (think hue switches or alike) Zigbee light bulbs, and a bunch … --- ## [Using a flow variable in the home assistant call service node](https://discourse.nodered.org/t/using-a-flow-variable-in-the-home-assistant-call-service-node/53948)
**Author:** [@Crabsticks](https://discourse.nodered.org/u/Crabsticks)\ **Replies:** 4\ **Last updated:** [18 November 2021 16:20 UTC](https://discourse.nodered.org/t/using-a-flow-variable-in-the-home-assistant-call-service-node/53948 "2021-11-18T16:20:39Z")
Hi, I need some help with the correct syntax to use. I am trying to set my thermostat to a value I have stored in a flow variable - the variable is called TargetHigh - I have tried using the following but get an error -… --- ## [Compare two numbers](https://discourse.nodered.org/t/compare-two-numbers/53935)
**Author:** [@Crabsticks](https://discourse.nodered.org/u/Crabsticks)\ **Replies:** 5\ **Last updated:** [18 November 2021 16:00 UTC](https://discourse.nodered.org/t/compare-two-numbers/53935 "2021-11-18T16:00:42Z")
Hello, A very basic noob question that I'm struggling to figure out. I have 2 payloads with numeric values and I need to compare them to find out which is larger at any given time. I think this is done with the functi… --- ## [How to Digital twin on my dashboard?](https://discourse.nodered.org/t/how-to-digital-twin-on-my-dashboard/53941)
**Author:** [@traderjoe](https://discourse.nodered.org/u/traderjoe)\ **Replies:** 1\ **Last updated:** [18 November 2021 15:26 UTC](https://discourse.nodered.org/t/how-to-digital-twin-on-my-dashboard/53941 "2021-11-18T15:26:25Z")
I'm reading in status of a device over modbus. That part works. So when I put my device into ready mode(not from the dash), my dash shows ready. But now I want to use the dash to put my device into ready mode. I unde… --- ## [Correct syntax for SQL select query in template node](https://discourse.nodered.org/t/correct-syntax-for-sql-select-query-in-template-node/53850)
**Author:** [@mortentj](https://discourse.nodered.org/u/mortentj)\ **Replies:** 5\ **Last updated:** [18 November 2021 15:14 UTC](https://discourse.nodered.org/t/correct-syntax-for-sql-select-query-in-template-node/53850 "2021-11-18T15:14:36Z")
Hi, I wan't to query my postgres database (just a simple select query), but I can't figure out the syntax in my template node. The debug windows shows: "Error: msg.payload must be an array of queries" Any idea how to w… --- ## [Throttle reset or alternative way of limiting to first message](https://discourse.nodered.org/t/throttle-reset-or-alternative-way-of-limiting-to-first-message/53559)
**Author:** [@unclebob](https://discourse.nodered.org/u/unclebob)\ **Replies:** 9\ **Last updated:** [18 November 2021 14:57 UTC](https://discourse.nodered.org/t/throttle-reset-or-alternative-way-of-limiting-to-first-message/53559 "2021-11-18T14:57:42Z")
Hi All, I am looking to setup a flow as follows. Every minute, get two values from a database, if value target is lower then last\_reading, then turn on the hot water, When it gets to a preset value (60 in my case) the… --- ## [Node-red is somehow mutating normal Object so I can't pass it into Firestore setDoc() function](https://discourse.nodered.org/t/node-red-is-somehow-mutating-normal-object-so-i-cant-pass-it-into-firestore-setdoc-function/53893)
**Author:** [@Sulomus](https://discourse.nodered.org/u/Sulomus)\ **Replies:** 10\ **Last updated:** [18 November 2021 14:27 UTC](https://discourse.nodered.org/t/node-red-is-somehow-mutating-normal-object-so-i-cant-pass-it-into-firestore-setdoc-function/53893 "2021-11-18T14:27:30Z")
I am using Firebase SDK's within Node-red (as specified in NPM docs they can be used for IoT devices with NODE.js). I can use all of the CRUD methods with Firebase RealtimeDatabase. With Firebase Firestore I can only u… --- ## [Html parse value](https://discourse.nodered.org/t/html-parse-value/53916)
**Author:** [@steinerma](https://discourse.nodered.org/u/steinerma)\ **Replies:** 6\ **Last updated:** [18 November 2021 12:53 UTC](https://discourse.nodered.org/t/html-parse-value/53916 "2021-11-18T12:53:49Z")
Hi, I would like to parse the value of the frequency (currently 50.011 Hz) from the website https://www.netzfrequenz.info/. Unfortunately I don't have a idea how to do that. I have set the following: Do you have a … --- ## [Upgrading Node-Red (not forklifing)](https://discourse.nodered.org/t/upgrading-node-red-not-forklifing/53901)
**Author:** [@cabh](https://discourse.nodered.org/u/cabh)\ **Replies:** 5\ **Last updated:** [18 November 2021 09:24 UTC](https://discourse.nodered.org/t/upgrading-node-red-not-forklifing/53901 "2021-11-18T09:24:21Z")
I am attempting to upgrade. All of the upgrades are really reinstallations that wipe out prior configs and flows. I am attempting to upgrade Node-Red to the latest version from v1.2.9 running on Ubuntu. I am using vmware… --- ## [Udp out node bind to local port](https://discourse.nodered.org/t/udp-out-node-bind-to-local-port/53636)
**Author:** [@plouc](https://discourse.nodered.org/u/plouc)\ **Replies:** 3\ **Last updated:** [18 November 2021 06:55 UTC](https://discourse.nodered.org/t/udp-out-node-bind-to-local-port/53636 "2021-11-18T06:55:04Z")
Hello everyone, In the process of understanding how SRT protocol works, I would like to pass the SRT trought nodered which is a tool i really appreciate to troubleshoot. So it seems simple but might not be so. The ide… --- ## [Azure iot hub problems](https://discourse.nodered.org/t/azure-iot-hub-problems/11062)
**Author:** [@JokinSegu](https://discourse.nodered.org/u/JokinSegu)\ **Replies:** 3\ **Last updated:** [18 November 2021 05:13 UTC](https://discourse.nodered.org/t/azure-iot-hub-problems/11062 "2021-11-18T05:13:04Z")
I am trying to send data to azure iot hub, for that I am using the example of flow that is in the library. I set my iot hub values but I receive in the debug that it is not authorized. Maybe is because I am sending the … --- ## [Plot button on image](https://discourse.nodered.org/t/plot-button-on-image/53918)
**Author:** [@PiMo131](https://discourse.nodered.org/u/PiMo131)\ **Replies:** 2\ **Last updated:** [17 November 2021 23:16 UTC](https://discourse.nodered.org/t/plot-button-on-image/53918 "2021-11-17T23:16:27Z")
I have an offline system for which i like to add images on a map. Using the worldmap node is difficult for two reasons. No internet = no map The map ussually very small. So the zoom of the worldmap is insufficient. I… --- ## [Cutting my losses - node removal. TASMOTA](https://discourse.nodered.org/t/cutting-my-losses-node-removal-tasmota/53908)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 5\ **Last updated:** [17 November 2021 22:44 UTC](https://discourse.nodered.org/t/cutting-my-losses-node-removal-tasmota/53908 "2021-11-17T22:44:20Z")
I get that this node gives you some nice/neat features. I have it installed but not directly being used. It is in a flow, but disabled. I didn't think there were/are any implications of this. But if I then delete the… --- ## [Copy Node-red installation](https://discourse.nodered.org/t/copy-node-red-installation/53753)
**Author:** [@PiMo131](https://discourse.nodered.org/u/PiMo131)\ **Replies:** 2\ **Last updated:** [17 November 2021 22:42 UTC](https://discourse.nodered.org/t/copy-node-red-installation/53753 "2021-11-17T22:42:29Z")
Hi, We are using Node-red al lot and most of the basic flows are the same. As will be admin passwords, security settings and \_settings file settings. Is there an easy way to copy a whole Node-Red installation from 1 (w… --- ## [Place value in specific order with the join function](https://discourse.nodered.org/t/place-value-in-specific-order-with-the-join-function/53911)
**Author:** [@calberts](https://discourse.nodered.org/u/calberts)\ **Replies:** 2\ **Last updated:** [17 November 2021 22:13 UTC](https://discourse.nodered.org/t/place-value-in-specific-order-with-the-join-function/53911 "2021-11-17T22:13:44Z")
Hoi I have small issue, and i have no idea how to solve that I bring some value's together via MQTT put them in a file. I like to manipulate the order how they are placed in the file, but how to do this This is the j… --- ## [Alexa Cookie in Cakebaked (formerly remote2)](https://discourse.nodered.org/t/alexa-cookie-in-cakebaked-formerly-remote2/53858)
**Author:** [@bkr1969](https://discourse.nodered.org/u/bkr1969)\ **Replies:** 3\ **Last updated:** [17 November 2021 20:42 UTC](https://discourse.nodered.org/t/alexa-cookie-in-cakebaked-formerly-remote2/53858 "2021-11-17T20:42:43Z")
How in the world do I keep the cookie so I don't have to reauthenticate on the Amazon site every couple of days? --- ## [I don't understand this message I see in the debug output](https://discourse.nodered.org/t/i-dont-understand-this-message-i-see-in-the-debug-output/53847)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 8\ **Last updated:** [17 November 2021 19:44 UTC](https://discourse.nodered.org/t/i-dont-understand-this-message-i-see-in-the-debug-output/53847 "2021-11-17T19:44:45Z")
This could be a tasmota problem, but I have to start somewhere. I recently got a device back into the system and since then I am getting these funny messages. Which is kind of fine, but when I click on the node name… --- ## [SSH Key scan failed trying to build custom Docker under Bullseye](https://discourse.nodered.org/t/ssh-key-scan-failed-trying-to-build-custom-docker-under-bullseye/53889)
**Author:** [@alfort57](https://discourse.nodered.org/u/alfort57)\ **Replies:** 7\ **Last updated:** [17 November 2021 17:52 UTC](https://discourse.nodered.org/t/ssh-key-scan-failed-trying-to-build-custom-docker-under-bullseye/53889 "2021-11-17T17:52:51Z")
Hardware: Raspberry PI 4 with 8Gb Ram OS: PI OS Bullseye Full distribution All updates to Bullseye done Docker standard image : 2.1.3 is running OK Docker Custom Git freshly clone. I was able to build several Custom… --- ## ["Pi Keyboard" not working after Node-Red upgraded from 1.3.7 to 2.1.3 (Raspberry Pi 3b+)](https://discourse.nodered.org/t/pi-keyboard-not-working-after-node-red-upgraded-from-1-3-7-to-2-1-3-raspberry-pi-3b/53820)
**Author:** [@Trubochkin](https://discourse.nodered.org/u/Trubochkin)\ **Replies:** 7\ **Last updated:** [17 November 2021 17:26 UTC](https://discourse.nodered.org/t/pi-keyboard-not-working-after-node-red-upgraded-from-1-3-7-to-2-1-3-raspberry-pi-3b/53820 "2021-11-17T17:26:53Z")
"Houston, we have a problem!" I am using a barcode scanner that works like a keyboard. It worked fine, but after the Node-Red update, the "Pi Keyboard" went to the "Stopped" status (blinking with OK). The debug messa… --- ## [Converting payload.object to an array](https://discourse.nodered.org/t/converting-payload-object-to-an-array/53888)
**Author:** [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\ **Replies:** 3\ **Last updated:** [17 November 2021 16:28 UTC](https://discourse.nodered.org/t/converting-payload-object-to-an-array/53888 "2021-11-17T16:28:22Z")
hi, I wanted to convert my payload.object in form of array. Please help New to this Node red family. --- ## [Websocket crashes node-red](https://discourse.nodered.org/t/websocket-crashes-node-red/53880)
**Author:** [@davec1001](https://discourse.nodered.org/u/davec1001)\ **Replies:** 2\ **Last updated:** [17 November 2021 15:16 UTC](https://discourse.nodered.org/t/websocket-crashes-node-red/53880 "2021-11-17T15:16:42Z")
I have a websocket connected to a sky box, when the sky box disconnects (ie I switch it off). it crashes node-red. I have a hearbeat set Disabling the hearbeat stops the error/crash. Should this be a bug? ie should… --- ## [Saving Sensors Measurements](https://discourse.nodered.org/t/saving-sensors-measurements/53884)
**Author:** [@ghada1](https://discourse.nodered.org/u/ghada1)\ **Replies:** 1\ **Last updated:** [17 November 2021 14:18 UTC](https://discourse.nodered.org/t/saving-sensors-measurements/53884 "2021-11-17T14:18:58Z")
Hello All, How can i save the data i'm receiving on Node-Red into a python file on my raspberry pi? i'm a newbie on this and i'm wondering how is it possible --- ## [\[warning\]Bullseye OS released for Raspberry Pi](https://discourse.nodered.org/t/warning-bullseye-os-released-for-raspberry-pi/53376)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 17\ **Last updated:** [17 November 2021 09:27 UTC](https://discourse.nodered.org/t/warning-bullseye-os-released-for-raspberry-pi/53376 "2021-11-17T09:27:49Z")
so watch out @dceejay in case the script needs tweaking :slight\_smile: --- ## [MQTT | TLS version: v1.2 (TLS mandatory with CA signed server certificate)](https://discourse.nodered.org/t/mqtt-tls-version-v1-2-tls-mandatory-with-ca-signed-server-certificate/53872)
**Author:** [@AYo](https://discourse.nodered.org/u/AYo)\ **Replies:** 6\ **Last updated:** [17 November 2021 09:24 UTC](https://discourse.nodered.org/t/mqtt-tls-version-v1-2-tls-mandatory-with-ca-signed-server-certificate/53872 "2021-11-17T09:24:27Z")
Hi Buddies, good day ! i am trying to connect to a secure port MQTT Broker and from the documentation, it says TLS version: v1.2 (TLS mandatory with CA signed server certificate) i have been wondering how to connect … --- ## [Rpi-gpio : Raspberry Pi specific node set inactive](https://discourse.nodered.org/t/rpi-gpio-raspberry-pi-specific-node-set-inactive/53569)
**Author:** [@alanmasu](https://discourse.nodered.org/u/alanmasu)\ **Replies:** 77\ **Last updated:** [17 November 2021 09:03 UTC](https://discourse.nodered.org/t/rpi-gpio-raspberry-pi-specific-node-set-inactive/53569 "2021-11-17T09:03:45Z")
Hi, I'm quite new about raspberry and I don't know very well the environment. I'm running NodeRED on Raspberry Pi 4B, my problem is that the GPIO nodes are not available and I don't now how to control GPIOs. When NR st… --- ## [Popup Array of Data](https://discourse.nodered.org/t/popup-array-of-data/3520)
**Author:** [@ryanjohnson00](https://discourse.nodered.org/u/ryanjohnson00)\ **Replies:** 6\ **Last updated:** [17 November 2021 08:28 UTC](https://discourse.nodered.org/t/popup-array-of-data/3520 "2021-11-17T08:28:16Z")
I am looking for a way to have a popup show my msg.payload that is an array of data. I tried the notification node but it did not show my data in a list format but in one line. I am looking to save space on the dashboa… [Previous page](https://discourse.nodered.org/c/general/7.md?page=464) [Next page](https://discourse.nodered.org/c/general/7.md?page=466)