Python高性能异步web框架xweb.

High performance web framework built with uvloop and httptools

In Xweb, everything is asynchronous.

Features

• High performance.
• Asynchronous.
• Small.

Requirements

• Python3.6+

Installation

pip install xweb

Get Started

Hello World

from xweb import App

app = App()

@app.use
async def response(ctx):
    ctx.res.body = "Hello World"


if __name__ == '__main__':
    app.listen(8000)

Example with middleware.

A middleware is an async function or an async callable object which looks like: async def logger(ctx, fn)

# app.py

import time

from xweb import App

app = App()


@app.use
async def logger(ctx, fn):
    await fn()
    rt = ctx['X-Response-Time']
    print(rt)


@app.use
async def response_time(ctx, fn):
    start = time.time()
    await fn()
    usage = (time.time() - start) * 1000_000
    ctx['X-Response-Time'] = f'{usage:.0f}µs'


@app.use
async def response(ctx):
    ctx.res.body = "Hello World"


if __name__ == '__main__':
    app.listen(8000)

App

• app.use(fn)
• app.listen(host='127.0.0.1', port=8000, debug=True)

Context

• ctx.req
• ctx.res
• ctx.send
• ctx.abort(self, status, msg="", properties="")
• ctx.check(self, value, status=400, msg='', properties="")

Request

ctx.req is a Request object.

• ctx.req.headers dict
• ctx.req.method str
• ctx.req.url str
• ctx.req.raw bytes
• ctx.req.ip str

Response

ctx.res is a Request object.

• ctx.res.body str
• ctx.res.status int
• ctx.res.msg str
• ctx.res.headers dict

Benchmark

• Benchmark code in benchmarks/.
• environment: iMac (Retina 4K, 21.5-inch, 2017), 3 GHz Intel Core i5, 8 GB 2400 MHz DDR4
• test command: wrk http://127.0.0.1:8000/ -c 100 -t 10 -d 10 -T 10

Frameworks	Requests/Sec	Version
xweb	90000	0.1.0
vibora	90000	0.0.6
meinheld + wsgi	77000	0.6.1
sanic	50000	0.7.0

Deploy

gunicorn -w 4 -k xweb.XWebWorker app:app

Test

1. pip install -r requirement.txt
2. pytest --cov xweb.py

Contributing

Build Middleware.

XWeb is inspired by koajs. I need some help for writing middleware as in koa. For example:

1. Body parser. Convert the raw bytes body into dict or file.
2. Data validator. Async data validator with high performance.
3. Router. High performance router like koa-router.
4. etc..

Open issue.

1. Suggestion.
2. Bug.