Use Node.js command line debugger on child process?

Question

I use the Node client debugger, like so:

node debug myscript.js

But this process spawns a child using:

var child = require("child_process").fork(cmd, args);

Is there a way for this child to ALSO be started in "debug" mode?

Answer 1

Yes. You have to spawn your process in a new port. There is a workaround to debug with clusters, in the same way you can do:

var debug = process.execArgv.indexOf('--debug') !== -1;
if(debug) {
    //Set an unused port number.
    process.execArgv.push('--debug=' + (5859));
}
var child = require("child_process").fork(cmd, args);

.... debugger listening on port 5859