Trace all events in a node.js application

trace-all-events.js

(function() {
  var EventEmitter = require('events').EventEmitter;
  var inspect = require('util').inspect;
  var emit_ = EventEmitter.prototype.emit;
  EventEmitter.prototype.emit = function(name) {
    var args = Array.prototype.slice.call(arguments);
    if (!(this === process.stderr && name === 'drain')) {
      console.error("Event '%s', arguments: %s",
                    name, inspect(args.slice(1), false, 1));
    }
    return emit_.apply(this, args);
  };
})();