Wednesday, January 16, 2013

Building A Node.JS Server That Won’t Melt (link)

How can you build a Node.JS application that keeps running, even under impossible load?

This post presents a technique and a library that implements that technique, all which is distilled into the following five lines of code:

var toobusy = require('toobusy');
 
app.use(function(req, res, next) {
  if (toobusy()) res.send(503, "I'm busy right now, sorry.");
  else next();
});

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