I'm creating an own node but I'm stuck with it so I want to find the error with the node.js debugger. However, setting breakpoints in any node seems not to work at all. Forgive me when this looks a bit hacky to you - I'm not very experienced with JS development. (yet) I installed Node-RED via requ…

Hey @Noir , That is very weird. I alway use Chrome to debug all my contributions to Node-RED. Have had a lot of issues in the past, but not the one that you have... Why are you only using --inspect-brk ? Because that is used to debug stuff at the start of your Node-RED application (like you can …

[image] BartButenaers: Why are you only using --inspect-brk ? I want to make make sure that nothing interesting is executed before the debugger is attached. Could you describe how your development environment and your workflow looks like? It would be very useful to me as a reference.

Hey @noir You will need to use both command arguments to let Node-RED halt at the first line AND make sure that from then on your debugger can communicate with NodeJs: node --inspect --debug-brk /usr/lib/node_modules/node-red/red.js Will add some extra explanation below, for those who want to de…

Thank you very much for your in-depth instructions. I decided to grab a Raspberry PI with Raspbian as a clean environment (This was my long term target platform anyway) to start over and deployed my nodes on it while keeping your instructions in mind. It is working now! Seems like I really messed up…

Not sure if this works for chrome debugging but in vscode, I include --preserve-symlinks in the debug settings file. Not able to paste a copy of my launch JSON right now but if you do a quick google search on vscode launch node -preserve-symlinks you'll find the info. Hope that helps you or others…

@BartButenaers @noir please note the --inspect --debug-brk has been deprecated as of Node 7.7.0 .. recommendation is now to use --inspect-brk https://nodejs.org/de/docs/guides/debugging-getting-started/#legacy-debugger

I never did get back to this (until now)... [image] How to proper debug custom node General This is how I debug a custom node in VS Code... It works for me however since this is a dist version of node-red its difficult sometimes to debug client side issues. Other than t…

Node-RED

Node-RED Forum

How to debug an own node with the node.js debugger?

Developing Nodes

Steve-Mcl 22 August 2019 13:54 8

I never did get back to this (until now)...

Topic		Replies	Views
Debug JS code inside function node FAQs	17	8478	19 July 2020
How to proper debug custom node General	42	10016	21 February 2023
Add Docs on VS Code to debug Node-RED and nodes Developing Nodes	13	4659	24 February 2021
Developer workflow for debugging plugins Developing Nodes	7	1216	2 January 2020
Node-RED Breakpoints Feature Requests	11	2885	21 June 2020

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

How to debug an own node with the node.js debugger?

Related topics