How to share code or flow json

To share code samples or flow json in this forum, you need to take care to format it properly so that it is displayed correctly.

The easiest way to do that is to click the 'Preformatted Text' button in the toolbar:

image

Then paste in your code or flow json.

You should end up with three back-tick characters - ``` - on their own line before and after the code.

On standard US English keyboards, this is on the same key as the ~ character.

Using the backticks will ensure the forum does not reformat the code.

[{"id":"bbef23cc.4e7f18","type":"inject"}]

You can see the quotes remain untouched.

For code from a Function node, first without the backticks:

msg.payload = "Hello There";
return msg;

And again, with the backticks:

msg.payload = "Hello There";
return msg;

The added syntax highlighting also makes it much easier to read.

This should be used for any code samples, such as flow JSON, JavaScript, html or XML samples.

15 Likes
How set the output variable "{{msg.payload}}" in JS?!
Temperature date from xiaomi
Text input + Button
Dashboard not appearing
Embed Node-RED into mean express on the same port in an iframe
Function to compare ds18b20 to numeric value
Static Text in the Dashboard Titlebar?
Access data in template node using mustache
RSS feed on dashboard
Join output from two function nodes
Need help on how to change UI text icon color with input value from Serial Node
Ramp-thermostat operational questions and clarification
Cumulative running time
Live gpio timer duration to lcd
Dashboard Form -> python3-function node
If ( var1 = true and var2 = true ) then / else
Pausing timer in mytimeout
Simple sum gives wrong answer ... I am using get and set
Aosong AM2315 temp/rh
Node-Red Dashboard Graph
Dashboard using template node
node-RED can not be opened anymore
"TypeError: Cannot read property '0' of undefined"
RED.httpAdmin.get not refreshing JSON
Read from mysql db
NLC node fails to connect NLC instance on IBM Cloud
Replicate this curl command in node red flow
Problem using ng-change directive with Dashboard Template
Create an admin configuration API HTTPS endpoint
Switch Node with time
How can I get array components values
Nodes suggestion for timed rolling average and desynchronised sum
Returnvalue in function-node from async action-node
How can I update a switch status on the dashboard
How To Make Logging Data Values in Chart
Trying to retrieve info from a website problems, I'm just a rookie
Node-Red Sending Unencoded text or filenames over email Instead of photos
Special character encoding /Utf8 problem
MySQL NODE-RED table
Function to store data from csv to table?
How can i append to PDF file in Node-Red?
Error: Cannot find module 'i2c-bus'
I have some questions relating database
Question for evaluation rfxcom-out
"Rich File Manager" in node-red
Jsonata: return value from context array
Arduino serial data and alarms
ReferenceError: SunCalc is not defined
How to do a simple sum of two msgs which are arrays
Passing an input to exec node which execute a python script
How to make a counter incoming\outgoing on two sensors?
Virtual keyboard in any text fields
Access msg.payload in script tag
Write Slide Value
Set context array not working
How to convert to a function
How to convert to a function
Dropbox folder sync
Newbie here using Hassio
Return triggers Maximum call stack size
Node-RED MongoDB Update Example
Problems with layouts using groups
Detect when context's variable changes its value
URL variables http get request
Visibility images via ui_template
PCF9685 Dimmen slow
Node-red mongodb update record
Dimming lights with IKEA remote
Gridview with CRUD option in template node
Test of a sensor
Cryptomining Malware Infecting Node-RED servers
Accessing global variables from a custom node
Mysterious Startup notices
Representing locations in worldmap
Create json object in flow
How to make an IoT protocol (parsing, answering)?
Import querySelector function
Passing msg.payload to template node
Blog site using Mongo db
Node red sms app
Trouble with UTC and lighting automation
Can't get the blog post
EXAMPLE (template) - displaying a two dimensional table
Changing the inject node repeat option from UI
Function not working after update
Return value from OPC.IIoT.Result-Filter
Can node-red node/flow run in parallel?
Help SQLite error
Need help with comparing RGB values
Speeding up picture taking
Dashboard dropdown bug
Automatique or manual mode
Newbies forum/section?
Three backticks
How to access payload in mustache template under script tag
Node-red influxdb invalid boolean
Please help me..pilcd doesn't work(raspberry pi+16x2lcd)
Time control using a switch
Trouble Registering Custom Node
HTML to activate GPIO
Help with extraction of data from csv file
I have a problem with the hue - switch
Trouble Registering Custom Node
Node-RED Dashboard: Some simple questions
Node-red raspberry pi multiple input
Wait for page load before make Get request
Node-red-log Data Export
Using array loop
Error sending OPC UA variable
Node red is not giving http response
Three way light switch emulation
Yeelight rainbow mode
Posting flows in Node-RED forum
Delay node problem with override
Audio file playback and stopping playback
Parsing txt file
"Deploy failed: No response from server" when inserting into MySQL
BACnet write property
Button on click popup number pad
PLC connection dosen´t work
HTTP radio buttons, drop down and check boxes
I only want to save the last number - filelog
Node-red-node-pi-gpiod true/false vs. 0/1
Dowloading a CSV-file via dashboard button
Multiple Sensor Data Using Arduino
UI Dropdown - Populating Data
Exporting data from ds18b20
Scenario with MQTT nodes - No message received on debug node
S7-1200 read variable
No update in Domoticz
JSON parse error
JSON parse error
About the Dashboard category
Modbus/Arrays extract divide and give in stream
Welcome to the Node-RED Forum!
About delay node
Trouble updating chart.js chart with msg.payload
Delay in Function
Strange behaviour of assign of context var with init bool value
MSSQL 2 instances same server, 2 different databases
Writing using file node UTF-8, encoding becomes iso-8859
Led question start
Trigger a flow from external call (QUESTION)
The workspace contains some nodes that are not properly configured
How many messages are "flowing" in my NR?
Help with injecting a boolean value into a payload?
While running the flow getting servet time out error
In node-red how to store message for using in flows
Values color - gauge
Conflicts switch- / template node
HTTP Request response changed 0.20.2 upgrade
Listen to udp and parse the snmp in it
Error, sslv3 alert handshake failure
Getting the status of entities in Home Assistant
Can't upgrade npm from 6.9.0 to latest on raspian stretch
How to read xml external file
Error with function
Node-Red connection issues
Trigger a message payload based on input from parallel port
UI-Template DataBase Help
Extracting data from msg.payload
Sum up three outputs from mqtt
Writing on PLC S7 node works only 25% of the times
Grab image - resize - iframe
How can I convert char code numbers to string characters?
Textarea is not holding the value
Node-red-dashboard has gone blank
Don't know how to pull flow context without quotations in a template
Read and write a json file - solved
The right logic for this task
Data from Multiple Arrays to a single Array
Send values to an array, write to CSV when full
2 flows data combined into 1 graph
How to compare two msg.payload in a same flow
Mysql database in dropdown node
Introduce inputs in exec node
:tada: Node-RED 1.0 Released
Who can help me improve my node (homekit)
"Numeric" as delay pin trigger
Unable to connect to server 127.0.0.1:1880 through port 1880
How to flash a LED?
Problem Getting Image in Template Node
Email send failed. Error 3392 ssl3_get_record:wrong version number
Mysql database in dropdown node
Using copy paste table data via dashboard
Node-red-contrib-soap 401 - Unauthorized: Access
Blinds Control Logic?
Node-red-contrib-alexa-smart-home
Deploy button doesn't click
[SOLVED] Newbe struggling with JSON Global Arrays
HEX color light state
Function Node with multi-output
Switch with indicator
Controlling Relay
Multiple DS18B20 temperature sensor (Tasmota->NodeRed->InfluxDB))
MQTT & POSTGRESQL on Raspberry
Node-red doesn't run anymore
Kalman filter not working
Data Stored in MySQL
Sending data to Firestore using MQTT
IBM Watson Sensor Support
Chart input object not working
TCP IP Send receive data
Storing energy data
TCP IP Send receive data
Change node only returning first object
Formatting Time for timer input
Date Picker adding odd time
Error 404 with http request to a static IP server with web browser
Worldmap KML, GPX, or TOPOJSON example needed
Test if the file exist
BME280 Output Object Splitting
Date Picker adding odd time
Homekit relay to foutain and light bulb
Homekit relay to foutain and light bulb
Set the input signal to high and low for a while of 1 second
Help Parsing HTTP payload information
Case triggered storing
Delay loop and reset
Context not updating on localfilesystem
No debug output in side-bar. Tried lots, stuck, please help
Problem accessing external website
Loops with GPIO
Error while sending data to influxDB
Wanted to create database
MQTT data send from BSB-LAN arduino program
Is this a good way to add delay for each msg
Regression Node - Help
Same record is inserting twice
Flow variables troubles
Read Date and Time out of any Node
SQLite Foreign key ignored
Error In Dashboard creation
Dashboard dropdown - button
Delete and update operation using mysql in bootstrap table
Csv Header only once
Read Date and Time out of any Node
Node-red-contrib-ui-artless-gauge not showing on dashboard
NR Dashboard not appearing
Python function
I want to send Data from PLC to an API
I want to send Data from PLC to an API
Trouble getting mqtt sub to activate an mqtt pub
Constant variable in the graph is not updated
I'm looking for help with my project
Read values from S7 component to mysql query
Can someone help me it does not work , with relay must go off or on, the switch works
How to put msg.payload value in html tag?
Etable dynamic editorparam
I wil make e thermostat but is not working ; if you change the mintemp or maxtemp the funcioen should show a 1 or 0 in his debug
Sending the message to the next node
How to control the start-up of each process has a certain interval at the node-red start-up
How to construct SNMP Varbinds with payload values
Sort msg.payload Arrays into sections
Email logged file
How to join numbers to form a date?
[Announce] node-red-contrib-homie-convention
Extract _Session
How can i create a table from a DB?
First time caller. trouble with capture image from ipcam
Debug nodes are not working properly
How to send a picture through Telegram?
Maniuplating a msg:string so I can make it a msg.payload?
I need to put timer to my project
Login problem Help
Create an event scheduler, like cron, time
Node Slider Bug at 0.1 step only on release?
Using a form to add a tag to javascript object before saving to influxDB
Show dialog node
Scraping HTML for Home Assistant, need help with loop
IKEA motion sensor
Node-red mqtt-in node not working for aws iot
Not all UI Switches are updating Status
Delay Timer With Momentary Push Button
Zigbee2mqtt to Domoticz flow help
Working Ambient Weather API flow
Display a chart in PDF
If statement with function node
Using Incoming Message in ui_template Node
Node-red-contrib-smb error
Raspberry Pi GPIO via HTML
One "master flow" several "slave flows"
Extracting my valuable data from a msg.payload?
Why DSM node not working correctly
Read data from InfluxDB
Serial Port issue
Help with contexts please
Servo Motor with fixed angle
Use of UI control
Problems with node-red-contrib-google
From sqlite to json format
Join error with message complete
Keep track of volume number in NR / HA
How to separate receiving dashboards from two different devices
Send string from dashboard to msg.payload
Boolean logic or glied
XML Data returned as UTF16 from HTTP Request doesnt parse in the XML node
Import of multiple flows, causes MQTT to oscillate between connected and disconnected state
Detach block from other
Python3-function issue
Rotate images when receive a pulse PLC
Sonoff T0 switch and nodered
Trying to make a if function work
Node "moment", output format "calendar", different results
How to Change the color of the ui text node dynamically
For each Line in a text file do
Object on msg deleted after file in node, msg per line configuraton
Muliply values from Dropdown menu
Adding a var in msg.payload
Repost State of Mqtt Topic if other Topic's state is 1
Flow disappeared but still working
Another Sensor-to-Switch Thread
Callback as json argument
ui_LED problem not showing on dashboard
Node red flows seem to be slowing down
Accessing msg properties that have a non standard variable identifier
Global INT set vars -> NaN
Node-red-contrib-netvar - negative "REAL" Type PLC values arrive in node-red as null
Node-red dashboard with weird behaviour
I/O switching performance on a Raspberry Pi 4
Node red value to mysql
How to get modbus float from register?
Ui not displaying anything
group_ID not hidding on the first load
Input Serial Data
Counting and output on the Dashboard
Sanity check for NWS weather alert Flow
Node-red-contrib-zip corrupts on unzip
Error while connecting to Influx DB
Trouble entering data to mysql
Modbus RS485 to USB communication
Plotting arrays
Siemens PLC communication using TCP IP node
Format KNX values into SQL INSERT for MYSQL
How to set button color on HTTP node response code?
PIR People counter
Exec Node not giving same output as linux terminal
Node or nodes which takes pictures with an ip camera with username and password each time when it have an request
Relay switch via dashboard led
I have a question. Sensor data classification
Switch node to control ui
Garden Monitoring and Watering
Modbus temperature sensor
Sending multiple modbus data values to SQL Server (Azure) in one stored procedure
Debug node causing RangeError: Maximum call stack size exceeded
Close one after one with the exec node the 2 instances of vlc displayed
AND Logic not operating
Send value of input text when click on button
Error message (and super slow load times) on first Node-red instance
Use data from 2 arrays
Problem Using a Button with DS18B20 Node
Buffer list_ui input?
Code works in function, but not in a Change Node?
UI switch behaviour
"Error: Cannot find module 'node-red-dashboard"
Function node light questions
Store twitter data into DB2
Cannot read data by MODBUS RTU
How do I make a textbox varible timer delay
Any "change node" for JSON object
Node-red-contrib-counter
[ANNOUNCE] node-red-contrib-ui-contextmenu - typedinputs
Node-red-contrib-counter
Localhost is not coming
Graph with stored data
How to using environment variables in the subflow
Trying to work out why not getting updates for a particular output from a script
Exec node in spawn mode output to file
(Solved) How to able Node-Red to create files and folders on DietPi
Update file button
Creating dropdown with label:value pair
Nodes keep being reactivated although not within time range
Newbie here, Tibber question
Dashboard wont work
Download Multipart File to Node Red with HTTP Get Request
Help with creating a buffer of hex bytes from a string of hex words
Delete the OK/Cancel Notification Pop Up Window
How to populate multiple values in a graph?
Telegram-WatsonAssistan msg.payload.chatId is empty
Flow to insert into MySQL table
How to solve this problem Roll off Roof observatory
UI Template why did not show data
In nodered how to send data integer (four bytes) to tcp device
Insert into PostgreSQL database
Dealing with multiple msg.payloads at once
Lead node and switch control question
Automated Current limit
Undefined tag in node-red
Sonoff TH with SI7021 humidity sensor
Node-red Python exec
Function node problem with ver 1.2.2
Image not displayed in node-red-contrib-ui-media
Nested loop, how to
Doing Calculations on Modbus data
JSON flows in node description README.md - how resp. howto
How to increase input value size?
Trouble with Led on Dashboard
Function Node for Beginner
Memory problem Dashboard/plotly.js
Node red master rules?
Convert pcap to json
Slow GUI -- Browser
Replace a JSON value with string of a TAIL node
Replace a JSON value with string of a TAIL node
Motion sensor and light
Motion sensor and light
Beginner: test on a variable
Can't see what is happening
Will asynchronous change in a context variable with flow-scope, be immediately noticed by other nodes in the flow?
Help with a function node
Modbus communication buffer parser to bigint64
Easy function question
Extracting lat and long coordinates from payload
Split data stream
Sumar variables de dos contadores modbus
Split and Join and manual join also includes '["
How can I get the Node name and passing it to a notification
How to automatically change file name based in a variable "job number"
Wasserstandswarnung
Countdown values Issue
Node red sending picture to telegram
What's wrong with msg.topic : the query is not defined as a string?
Write a string into a csv file
Start the dropdown values on button click
Split function causes Type error
Message sends old object
Valor de temperatura negativo
Start the dropdown values on button click
Additive / compound delay
Processing int16 values
Dashboard empty in UI
Maths problem with function node
File lister: problem "File could not be accessed"
Compose msg.payload with msg.topic
Payload and variables
Http Request not responding correctly
Issues trying to install on new Pi 4
How to combine 2 arrays into 1?
Struggle with boolean
Displaying Boolean Global Via a Switch Node
Sending a email with a attachment and a text
Stop a Flow with a button on the dashboard
Subtract 2 functions
Csv file to chart
Need help to use if function in Node Red
What should I do if I set the x-axis of the chart with the information entered as text?
SNMP Set - NoSuchName
Dashboard - How to add OK or Cancel button
Basics,Faster LED Blink,Set/Get function: mosquito into an elephant
From array message, get specific columns
Compare inside temp to outside
Dashboard - How to add OK or Cancel button
HomeKit Garage Door Opener (Raspberry Pi)
Switch node and Object message
Datatype error for fieldbus node
Return msg from ui_template node
Code question from a dopey newbe[solved]
"TypeError: msg.payload.split is not a function"
Error: getaddrinfo ENOTFOUND
Firebase and nodered help!
Notification based on input
Sum function of two sensor data
Dashboard_Dropdown doesn't use DataArray
Node-red-contrib-openzwave after update failed
How to scrap with node-red when http request fails?

Also, (especially larger flows) can now be saved as a txt or json file and uploaded directly to the post.

Paul

4 Likes

Complete beginner here, but I have ended up with tons of listings of "Home Assistant" as the server for Node-Red to connect to. Mauricio Bonani @mbonani wrote a JSON scrubber that I now use every time I import a flow in a post https://bonani.tech/a-good-practice-when-sharing-node-red-flows-with-home-assistant-nodes/, with the actual scrubber at https://zachowj.github.io/node-red-contrib-home-assistant-websocket/scrubber/

2 Likes

Thank you @euromem. Just a small correction, the scrubber was written by Jason Zachow, not by me.

Just to note the advice of pasting in your code then selecting then clicking preformatted text doesn't seem to work reliably - apparently it's better to click the button then paste your text into the newly created 'space'.

1 Like

@dclear thanks - have updated the guidance to match