60 lines
1020 B
JavaScript
60 lines
1020 B
JavaScript
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var http = require('http');
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var koa = require('..');
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var app = koa();
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// x-response-time
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app.use(function(next){
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return function *(){
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var start = new Date;
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yield next;
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var ms = new Date - start;
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this.set('X-Response-Time', ms + 'ms');
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}
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});
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// logger
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app.use(function(next){
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return function *(){
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var start = new Date;
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yield next;
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var ms = new Date - start;
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console.log('%s %s - %s', this.method, this.url, ms);
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}
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});
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// content-length
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app.use(function(next){
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return function *(){
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yield next;
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this.set('Content-Length', Buffer.byteLength(this.body));
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}
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});
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// response
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app.use(function(next){
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return function *(){
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yield next;
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if ('/' != this.url) return;
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this.status = 200;
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this.body = 'Hello World';
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}
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});
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// custom 404 handler
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app.use(function(next){
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return function *(){
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yield next;
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this.status = 404;
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this.body = 'Sorry cannot find that!';
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console.log(this);
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}
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});
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http.createServer(app.callback()).listen(3000);
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