Debugging Node.js apps with livereload and Docker

This repository is an example of how to run a Node.js program in debug mode from Docker with live reload enabled.

Demo

Intro

There are two different ways for debugging your Node.js apps.

1 - Using only your terminal

Using only your terminal using the properties below on your docker-compose:

nodejs-debug-docker:
    stdin_open: true
    command: npm run debug:terminal
...

After that you'd run docker-compose run nodejs-debug-docker which will enter in the interactive mode.

You can also run a few commands such as:

• list(20) to show the first 10 lines of code.
• sb(19) to set a breakpoint on the 19th line.
• c to continue the execution after setting the break point.
• You'd run curl "localhost:3000?number1=10&number2=20" to get your debugger working
• exec calculation you can see the current value stored on calculation variable
• r to restart and so on.

2 - Using your browser which is based on Chromium

Following this repository, you'd run docker-compose up --build then you'd go to your browser, open your inpection menu (using F12) then you'd see your app there

Author

• twitter.com/erickwendel_