Micro, Elegant, Fast, Lightweight, Expressive middleware for Modern Node.js
“这个算是一个 koa 修改进化版！”
有几个特点：
- 中间件使用了迭代器，看着这里：https://github.com/trekjs/middleware
- 去掉了 koa 中的
delegates模块，速度明显提升！ - 有个开关
app.raw你可以使用原生req和res进行操作。 - 大量使用新的语法特性（当然这不是什么新鲜事）。
- 轻量，简洁，优雅（async/await)
目前正在基于
trek-engine开发 trek 框架（实际上是重构，2015 年是基于 koa，现在有自己的轮子了， 哈哈）.
说了这么多，性能如何？
看这里 benchmarks 或者 https://travis-ci.org/trekjs/engine
Benchmarks
| Framework | Version |
|---|---|
| Express | 4.14.0 |
| Koa | 2.0.0-alpha.6 |
| Toa | 1.8.11 |
| Trek Engine | - |
Frameworks’ Battle! :fire: :collision:
With wrk
$ make battle
5 middleware
5 middleware
------- express -------
Hello World
6114.56
5 middleware
------- koa -------
Hello World
6613.55
5 middleware
------- toa -------
Hello World
5142.69
5 middleware
------- trek -------
Hello World
7393.59
15 middleware
15 middleware
------- express -------
Hello World
5681.79
15 middleware
------- koa -------
Hello World
6822.63
15 middleware
------- toa -------
Hello World
5336.33
15 middleware
------- trek -------
Hello World
8198.41
30 middleware
30 middleware
------- express -------
Hello World
5168.10
30 middleware
------- koa -------
Hello World
6205.17
30 middleware
------- toa -------
Hello World
4727.22
30 middleware
------- trek -------
Hello World
7982.35
50 middleware
50 middleware
------- express -------
Hello World
5393.90
50 middleware
------- koa -------
Hello World
5974.12
50 middleware
------- toa -------
Hello World
4261.97
50 middleware
------- trek -------
Hello World
6634.71
With autocannon
$ benchmarker=autocannon make battle
5 middleware
5 middleware
------- express -------
Hello World
Stat Avg Stdev Max
Latency (ms) 8.84 1.9 53
Req/Sec 5376.55 532.04 5963
Bytes/Sec 1.13 MB 110.42 kB 1.31 MB
59k requests in 11s, 12.42 MB read
5 middleware
------- koa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 7.57 1.54 54
Req/Sec 6080.55 415.54 6327
Bytes/Sec 918.99 kB 59.88 kB 983.04 kB
67k requests in 11s, 10.1 MB read
5 middleware
------- toa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 8.05 4.1 49
Req/Sec 5836.8 494.66 6183
Bytes/Sec 1.01 MB 87.39 kB 1.11 MB
58k requests in 10s, 9.98 MB read
5 middleware
------- trek -------
Hello World
Stat Avg Stdev Max
Latency (ms) 5.47 1.26 41
Req/Sec 8186.91 516.41 8703
Bytes/Sec 904.1 kB 61.63 kB 983.04 kB
90k requests in 11s, 10 MB read
15 middleware
15 middleware
------- express -------
Hello World
Stat Avg Stdev Max
Latency (ms) 8.78 1.7 55
Req/Sec 5374.4 508.32 5835
Bytes/Sec 1.13 MB 104.09 kB 1.25 MB
54k requests in 10s, 11.29 MB read
15 middleware
------- koa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 8.58 2.42 65
Req/Sec 5493.7 844.72 6559
Bytes/Sec 832.31 kB 124.73 kB 1.02 MB
55k requests in 10s, 8.29 MB read
15 middleware
------- toa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 10.08 5.07 57
Req/Sec 4733.9 969.03 5539
Bytes/Sec 813.47 kB 166.77 kB 950.27 kB
47k requests in 10s, 8.09 MB read
15 middleware
------- trek -------
Hello World
Stat Avg Stdev Max
Latency (ms) 7.57 2.45 47
Req/Sec 6248.82 1321.65 7635
Bytes/Sec 691.11 kB 145.3 kB 851.97 kB
69k requests in 11s, 7.63 MB read
30 middleware
30 middleware
------- express -------
Hello World
Stat Avg Stdev Max
Latency (ms) 14.45 4.73 110
Req/Sec 3338.37 541.38 4283
Bytes/Sec 699.3 kB 113.42 kB 917.5 kB
37k requests in 11s, 7.71 MB read
30 middleware
------- koa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 8.14 2.88 76
Req/Sec 5783.6 927.97 6783
Bytes/Sec 871.63 kB 137.82 kB 1.05 MB
58k requests in 10s, 8.73 MB read
30 middleware
------- toa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 9.82 4.22 45
Req/Sec 4866.5 305.97 5127
Bytes/Sec 829.03 kB 56.38 kB 884.74 kB
49k requests in 10s, 8.32 MB read
30 middleware
------- trek -------
Hello World
Stat Avg Stdev Max
Latency (ms) 6.26 1.44 49
Req/Sec 7604.55 749.25 8119
Bytes/Sec 844.52 kB 85.09 kB 917.5 kB
84k requests in 11s, 9.28 MB read
50 middleware
50 middleware
------- express -------
Hello World
Stat Avg Stdev Max
Latency (ms) 11.18 3.03 52
Req/Sec 4253.91 756.59 4991
Bytes/Sec 892.18 kB 158.13 kB 1.05 MB
47k requests in 11s, 9.83 MB read
50 middleware
------- koa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 8.47 2.83 47
Req/Sec 5566.7 909.66 6583
Bytes/Sec 835.58 kB 133.51 kB 1.02 MB
56k requests in 10s, 8.4 MB read
50 middleware
------- toa -------
Hello World
Stat Avg Stdev Max
Latency (ms) 12.66 5.5 60
Req/Sec 3794.6 752.37 4671
Bytes/Sec 646.35 kB 123.34 kB 819.2 kB
38k requests in 10s, 6.49 MB read
50 middleware
------- trek -------
Hello World
Stat Avg Stdev Max
Latency (ms) 7.66 2.89 59
Req/Sec 6124 852.52 7631
Bytes/Sec 677.48 kB 91.67 kB 851.97 kB
61k requests in 10s, 6.8 MB read
Enjoy!
<div align=“center”>
<h1>Trek Engine</h1>
<p>Micro, Elegant, Fast, Lightweight, Expressive middleware for Modern Node.js</p>
<p> <a href=“https://travis-ci.org/trekjs/engine”><img src=“https://img.shields.io/travis/trekjs/engine.svg” alt=“Build status”></a> <a href=“https://codecov.io/gh/trekjs/engine”><img src=“https://codecov.io/gh/trekjs/engine/branch/master/graph/badge.svg” alt=“Codecov” /></a> <a href=“https://npmjs.org/package/trek-engine”><img src=“https://img.shields.io/npm/v/trek-engine.svg” alt=“NPM version”></a> <a href=“https://www.npmjs.com/package/trek-engine”><img src=“https://img.shields.io/badge/license-MIT-green.svg” alt=“MIT License”></a> </p>
</div>
Features
-
Micro.
-
Elegant.
-
Fast.
-
Lightweight.
-
Expressive.
Installation
$ npm install trek-engine
Hello Trek Engine
const co = require('co')
const Engine = require('trek-engine')
const app = new Engine()
// middleware
app.use((ctx, next) => {
// return promise
return next()
})
// async/await
app.use(async (ctx, next) => {
await next()
})
// generator
app.use(co.wrap(function * (ctx, next) {
yield next()
}))
// response
app.use({ res } => {
res.end('Hello Koa')
})
app.run(3000)
Benchmarks
See express vs koa vs toa vs trek-engine.
-
express
-
koa v2
-
toa
-
trek-engine
3 回复
中间件使用了生成器
迭代器 ? https://github.com/trekjs/middleware/blob/master/index.js#L5 BTW: 没有 tags 差评 😂