Skip to main content

http client/server for asyncio

Project description

http client/server for asyncio

aiohttp logo https://travis-ci.org/KeepSafe/aiohttp.svg?branch=master https://coveralls.io/repos/KeepSafe/aiohttp/badge.svg?branch=master&service=github https://badge.fury.io/py/aiohttp.svg

Features

  • Supports both client and server side of HTTP protocol.

  • Supports both client and server Web-Sockets out-of-the-box.

  • Web-server has middlewares and pluggable routing.

Getting started

Client

To retrieve something from the web:

import aiohttp
import asyncio

async def fetch(session, url):
    with aiohttp.Timeout(10):
        async with session.get(url) as response:
            return await response.text()

if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    with aiohttp.ClientSession(loop=loop) as session:
        html = loop.run_until_complete(
            fetch(session, 'http://python.org'))
        print(html)

Server

This is simple usage example:

from aiohttp import web

async def handle(request):
    name = request.match_info.get('name', "Anonymous")
    text = "Hello, " + name
    return web.Response(body=text.encode('utf-8'))

async def wshandler(request):
    ws = web.WebSocketResponse()
    await ws.prepare(request)

    async for msg in ws:
        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


app = web.Application()
app.router.add_route('GET', '/echo', wshandler)
app.router.add_route('GET', '/{name}', handle)

web.run_app(app)

Note: examples are written for Python 3.5+ and utilize PEP-492 aka async/await. If you are using Python 3.4 please replace await with yield from and async def with @coroutine e.g.:

async def coro(...):
    ret = await f()

shoud be replaced by:

@asyncio.coroutine
def coro(...):
    ret = yield from f()

Documentation

http://aiohttp.readthedocs.org/

Discussion list

aio-libs google group: https://groups.google.com/forum/#!forum/aio-libs

Requirements

Optionally you may install cChardet library: https://pypi.python.org/pypi/cchardet/1.0.0

License

aiohttp is offered under the Apache 2 license.

Source code

The latest developer version is available in a github repository: https://github.com/KeepSafe/aiohttp

Benchmarks

If you are interested in by efficiency, AsyncIO community maintains a list of benchmarks on the official wiki: https://github.com/python/asyncio/wiki/Benchmarks

CHANGES

0.21.2 (02-16-2016)

  • Fix a regression: support for handling ~/path in static file routes was broken #782

0.21.1 (02-10-2016)

  • Make new resources classes public #767

  • Add router.resources() view

  • Fix cmd-line parameter names in doc

0.21.0 (02-04-2016)

  • Introduce on_shutdown signal #722

  • Implement raw input headers #726

  • Implement web.run_app utility function #734

  • Introduce on_cleanup signal

  • Deprecate Application.finish() / Application.register_on_finish() in favor of on_cleanup.

  • Get rid of bare aiohttp.request(), aiohttp.get() and family in docs #729

  • Deprecate bare aiohttp.request(), aiohttp.get() and family #729

  • Refactor keep-alive support #737:

    • Enable keepalive for HTTP 1.0 by default

    • Disable it for HTTP 0.9 (who cares about 0.9, BTW?)

    • For keepalived connections

      • Send Connection: keep-alive for HTTP 1.0 only

      • don’t send Connection header for HTTP 1.1

    • For non-keepalived connections

      • Send Connection: close for HTTP 1.1 only

      • don’t send Connection header for HTTP 1.0

  • Add version parameter to ClientSession constructor, deprecate it for session.request() and family #736

  • Enable access log by default #735

  • Deprecate app.router.register_route() (the method was not documented intentionally BTW).

  • Deprecate app.router.named_routes() in favor of app.router.named_resources()

  • route.add_static accepts pathlib.Path now #743

  • Add command line support: $ python -m aiohttp.web package.main #740

  • FAQ section was added to docs. Enjoy and fill free to contribute new topics

  • Add async context manager support to ClientSession

  • Document ClientResponse’s host, method, url properties

  • Use CORK/NODELAY in client API #748

  • ClientSession.close and Connector.close are coroutines now

  • Close client connection on exception in ClientResponse.release()

  • Allow to read multipart parts without content-length specified #750

  • Add support for unix domain sockets to gunicorn worker #470

  • Add test for default Expect handler #601

  • Add the first demo project

  • Rename loader keyword argument in web.Request.json method. #646

  • Add local socket binding for TCPConnector #678

Project details


Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

aiohttp-0.21.2.tar.gz (528.6 kB view hashes)

Uploaded Source

Built Distributions

aiohttp-0.21.2-cp35-cp35m-win_amd64.whl (243.6 kB view hashes)

Uploaded CPython 3.5m Windows x86-64

aiohttp-0.21.2-cp35-cp35m-win32.whl (235.2 kB view hashes)

Uploaded CPython 3.5m Windows x86

aiohttp-0.21.2-cp34-cp34m-win_amd64.whl (241.0 kB view hashes)

Uploaded CPython 3.4m Windows x86-64

aiohttp-0.21.2-cp34-cp34m-win32.whl (235.1 kB view hashes)

Uploaded CPython 3.4m Windows x86

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page