koa-lite/benchmarks/middleware.js

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var http = require('http');
var koa = require('..');
var app = koa();
// number of middleware
var n = parseInt(process.env.MW || '1', 10);
console.log(' %s middleware', n);
while (n--) {
app.use(function *(next){
yield next;
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});
}
var body = new Buffer('Hello World');
app.use(function *(next){
yield next;
this.body = body;
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});
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app.listen(3333);