The no-thought-necessary JavaScript minification middleware for connect and express.

Usage

Include UglifyJS-middleware in your application (available on npm), add some JavaScript to a *.js file, and include *.min.js in your HTML.

If the generateSourceMap option is set to true, a source map will be generated at *.map.js and linked to from *.js. To use the source map in Chrome, make sure you have source maps enabled (dev tool settings > Sources > Enable source maps).

Connect

var connect = require("connect")
  , uglifyMiddleware = require("uglifyjs-middleware")
  ;

var app = connect()
	.use(uglifyMiddleware(__dirname + "/public", {
		generateSourceMap: true
	}))
	.use(connect.static(__dirname + "/public"))
	.use(function(req, res) {
		res.statusCode = 404;
		res.end("Not found");
	})
	.use(function(err, req, res, next) {
		console.error(err);
		res.statusCode = 500;
		res.end("Internal server error");
	});

Express

var express = require("express")
  , uglifyMiddleware = require("uglifyjs-middleware")
  ;

var app = express.createServer();

app.configure(function () {
	app.use(uglifyMiddleware(__dirname + "/public", {
		generateSourceMap: true
	}));
	app.use(express.static(__dirname + "/public"));
	app.use(function(req, res) {
		res.statusCode = 404;
		res.end("Not found");
	});
	app.use(function(err, req, res, next) {
		console.error(err);
		res.statusCode = 500;
		res.end("Internal server error");
	});
});

Note: The "mounting" feature of app.use() works the same way as it does with express.static():

app.use("/mount", uglifyMiddleware(__dirname + "/public", {
	generateSourceMap: true
}));