Example KOA Server to serve static files

test-node-server.js

var fs = require('fs');
var koa = require('koa');
var r = require('koa-route');
var bodyParser = require('koa-bodyparser');
var app = koa();

app.use(function *(next){
    var start = new Date;
    yield next;
    var ms = new Date - start;
    console.log('%s %s - %s', this.method, this.url, ms);
});

app.use(bodyParser());

app.use(r.get('/bar.json', function *() {
    this.type = 'application/json;charset=utf-8';
    this.body = fs.createReadStream('./responses/bar.json');
}));
app.use(r.get('/foo.xml', function *() {
    this.type = 'text/xml;charset=utf-8';
    this.body = fs.createReadStream('./responses/foo.xml');
}));

app.listen(3087);