51 lines
798 B
JavaScript
51 lines
798 B
JavaScript
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var compose = require('koa-compose');
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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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function responseTime(){
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return function *responseTime(next){
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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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function logger(){
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return function* logger(next){
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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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// response
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function respond() {
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return function* respond(next){
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yield next;
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if ('/' != this.url) return;
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this.body = 'Hello World';
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}
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}
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// composed middleware
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function all() {
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return compose([
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responseTime(),
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logger(),
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respond()
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]);
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}
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app.use(all());
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app.listen(3000);
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