aiohttp 0.13.1

http client/server for asyncio

http client/server for asyncio

Requirements

• Python >= 3.3

• asyncio https://pypi.python.org/pypi/asyncio

License

aiohttp is offered under the Apache 2 license.

Documentation

http://aiohttp.readthedocs.org/

Getting started

Client

To retrieve something from the web:

import aiohttp

def get_body(url):
    response = yield from aiohttp.request('GET', url)
    return (yield from response.read())

You can use the get command like this anywhere in your asyncio powered program:

response = yield from aiohttp.request('GET', 'http://python.org')
body = yield from response.read()
print(body)

If you want to use timeouts for aiohttp client side please use standard asyncio approach:

yield from asyncio.wait_for(request('GET', url), 10)

Server

In aiohttp 0.12 we’ve added highlevel API for web HTTP server.

There is simple usage example:

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 init(loop):
    app = web.Application(loop=loop)
    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()

CHANGES

0.13.1 (12-31-2014)

• Add aiohttp.web.StreamResponse.started property #213

• Html escape traceback text in ServerHttpProtocol.handle_error

• Mention handler and middlewares in aiohttp.web.RequestHandler.handle_request on error (#218)

0.13.0 (12-29-2014)

• StreamResponse.charset converts value to lower-case on assigning.

• Chain exceptions when raise ClientRequestError.

• Support custom regexps in route variables #204

• Fixed graceful shutdown, disable keep-alive on connection closing.

• Decode http message with utf-8 encoding, some servers send headers in utf-8 encoding #207

• Support aiohtt.web middlewares #209

• Add ssl_context to TCPConnector #206

0.12.0 (12-12-2014)

• Deep refactoring of aiohttp.web in backward-incompatible manner. Sorry, we have to do this.

• Automatically force aiohttp.web handlers to coroutines in UrlDispatcher.add_route() #186

• Rename Request.POST() function to Request.post()

• Added POST attribute

• Response processing refactoring: constructor does’t accept Request instance anymore.

• Pass application instance to finish callback

• Exceptions refactoring

• Do not unquote query string in aiohttp.web.Request

• Fix concurrent access to payload in RequestHandle.handle_request()

• Add access logging to aiohttp.web

• Gunicorn worker for aiohttp.web

• Removed deprecated AsyncGunicornWorker

• Removed deprecated HttpClient

0.11.0 (11-29-2014)

• Support named routes in aiohttp.web.UrlDispatcher #179

• Make websocket subprotocols conform to spec #181

0.10.2 (11-19-2014)

• Don’t unquote environ[‘PATH_INFO’] in wsgi.py #177

0.10.1 (11-17-2014)

• aiohttp.web.HTTPException and descendants now files response body with string like 404: NotFound

• Fix multidict __iter__, the method should iterate over keys, not (key, value) pairs.

0.10.0 (11-13-2014)

• Add aiohttp.web subpackage for highlevel http server support.

• Add reason optional parameter to aiohttp.protocol.Response ctor.

• Fix aiohttp.client bug for sending file without content-type.

• Change error text for connection closed between server responses from ‘Can not read status line’ to explicit ‘Connection closed by server’

• Drop closed connections from connector #173

• Set server.transport to None on .closing() #172