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node.jsdebuggingangularjsyeoman

How to debug a yeoman application?


Coming from the background of developing web apps using server-side languages/platforms such as java, python/django and php, I am starting to learn Node.js and yeoman. I consider being able to debug server-side code essential in order to improve code quality. Node supports debugging via node-inspector and --debug option. But if an application is created out of yeoman using a generator, say AngularJS, and launched using grunt, is there an easy way to enable debugging?

Perhaps a higher level question I should first ask is: If yeoman promotes (as featured in tutorial) AngularJS, which is a client-side MVC framework, then majority of code will run from browser rather than from Node. Is that the reason why server-side debugging is not important any more to yeoman and therefore not documented?


Solution

  • I am developing a yemoan angular-fullstack application. I debug the server side node js application code as follows;

    1. Install node-inspector.
    2. Modify the application 'Gruntfile.js' to set debug as 'true' for express server

    express: { dev: { options: { script: 'server/app.js', debug: true } } }

    1. Start the application by running grunt serve.
    2. In a separate terminal run node-inspector.
    3. Open chrome and navigate to http://127.0.0.1:8080/debug?port=5858. (If you see the grunt console, you would see the node debugger is on port 5858).
    4. Now you should be able to put breakpoints and debug in your server application code. You could place debugger statement in your code to force node to break at that point and wait for your inspection.

    Note: node-inspector --no-preload loads the node inspector quicker.