58 lines
984 B
JavaScript
58 lines
984 B
JavaScript
|
|
var compose = require('koa-compose');
|
|
var http = require('http');
|
|
var koa = require('..');
|
|
var app = koa();
|
|
var calls = [];
|
|
|
|
// x-response-time
|
|
|
|
function responseTime(){
|
|
return function responseTime(next){
|
|
return function *(){
|
|
var start = new Date;
|
|
yield next;
|
|
var ms = new Date - start;
|
|
this.set('X-Response-Time', ms + 'ms');
|
|
}
|
|
}
|
|
}
|
|
|
|
// logger
|
|
|
|
function logger(){
|
|
return function logger(next){
|
|
return function *(){
|
|
var start = new Date;
|
|
yield next;
|
|
var ms = new Date - start;
|
|
console.log('%s %s - %s', this.method, this.url, ms);
|
|
}
|
|
}
|
|
}
|
|
|
|
// response
|
|
|
|
function respond() {
|
|
return function respond(next){
|
|
return function *(){
|
|
yield next;
|
|
if ('/' != this.url) return;
|
|
this.body = 'Hello World';
|
|
}
|
|
}
|
|
}
|
|
|
|
// composed middleware
|
|
|
|
function all() {
|
|
return compose([
|
|
responseTime(),
|
|
logger(),
|
|
respond()
|
|
]);
|
|
}
|
|
|
|
app.use(all());
|
|
|
|
http.createServer(app.callback()).listen(3000);
|