asyncio 的 HTTP 客戶端/服務端：aiohttp

aiohttp 是 asyncio 的 HTTP 客戶端/服務端 (PEP 3156)。

特性

• 支持 HTTP 客戶端 和 HTTP 服務端

• 開箱支持 Server WebSockets 和 Client WebSockets

• Web-server 有中間件和可插拔路由

服務器端簡單使用示例：

import asyncio
from aiohttp import web
@asyncio.coroutine
def handle(request):
    name = request.match_info.get('name', "Anonymous")
    text = "Hello, " + name
    return web.Response(body=text.encode('utf-8'))
@asyncio.coroutine
def wshandler(request):
    ws = web.WebSocketResponse()
    ws.start(request)
    while True:
        msg = yield from ws.receive()
        if msg.tp == web.MsgType.text:
            ws.send_str("Hello, {}".format(msg.data))
        elif msg.tp == web.MsgType.binary:
            ws.send_bytes(msg.data)
        elif msg.tp == web.MsgType.close:
            break
    return ws
@asyncio.coroutine
def init(loop):
    app = web.Application(loop=loop)
    app.router.add_route('GET', '/echo', wshandler)
    app.router.add_route('GET', '/{name}', handle)
    srv = yield from loop.create_server(app.make_handler(),
                                        '127.0.0.1', 8080)
    print("Server started at http://127.0.0.1:8080")
    return srv
loop = asyncio.get_event_loop()
loop.run_until_complete(init(loop))
loop.run_forever()

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