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Find and bind to free port in restify/express/connect.

Find and bind

Find a free port to which to bind your restify/express/http server.

$ npm install findandbind
var app = restify.createServer(); // or app = express(), etc 
// ... do my configuration of app 
var findandbind = require('findandbind');
findandbind(app, function (err, port) {
    // starts looking at 1024 ... 
    console.log('listening on', port);

By default, findandbind starts checking at 1024, the first user port. To start checking at a different port:

findandbind(app, { start: 2048 }, function (err, port) {
    console.log('listening on', port);