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

https://aiohttp.readthedocs.io/

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

0.22.3 (07-26-2016)

  • Do not filter cookies if unsafe flag provided #1005

0.22.2 (07-23-2016)

  • Suppress CancelledError when Timeout raises TimeoutError #970

  • Don’t expose aiohttp.__version__

  • Add unsafe parameter to CookieJar #968

  • Use unsafe cookie jar in test client tools

  • Expose aiohttp.CookieJar name

0.22.1 (07-16-2016)

  • Large cookie expiration/max-age doesn’t break an event loop from now (fixes #967)

0.22.0 (07-15-2016)

  • Fix bug in serving static directory #803

  • Fix command line arg parsing #797

  • Fix a documentation chapter about cookie usage #790

  • Handle empty body with gzipped encoding #758

  • Support 451 Unavailable For Legal Reasons http status #697

  • Fix Cookie share example and few small typos in docs #817

  • UrlDispatcher.add_route with partial coroutine handler #814

  • Optional support for aiodns #728

  • Add ServiceRestart and TryAgainLater websocket close codes #828

  • Fix prompt message for web.run_app #832

  • Allow to pass None as a timeout value to disable timeout logic #834

  • Fix leak of connection slot during connection erro #835

  • Gunicorn worker with uvloop support aiohttp.worker.GunicornUVLoopWebWorker #878

  • Don’t send body in response to HEAD request #838

  • Skip the preamble in MultipartReader #881

  • Implement BasicAuth decode classmethod. #744

  • Don’t crash logger when transport is None #889

  • Use a create_future compatibility wrapper instead of creating Futures directly #896

  • Add test utilities to aiohttp #902

  • Improve Request.__repr__ #875

  • Skip DNS resolving if provided host is already an ip address #874

  • Add headers to ClientSession.ws_connect #785

  • Document that server can send pre-compressed data #906

  • Don’t add Content-Encoding and Transfer-Encoding if no body #891

  • Add json() convenience methods to websocket message objects #897

  • Add client_resp.raise_for_status() #908

  • Implement cookie filter #799

  • Include an example of middleware to handle error pages #909

  • Fix error handling in StaticFileMixin #856

  • Add mocked request helper #900

  • Fix empty ALLOW Response header for cls based View #929

  • Respect CONNECT method to implement a proxy server #847

  • Add pytest_plugin #914

  • Add tutorial

  • Add backlog option to support more than 128 (default value in “create_server” function) concurrent connections #892

  • Allow configuration of header size limits #912

  • Separate sending file logic from StaticRoute dispatcher #901

  • Drop deprecated share_cookies connector option (BACKWARD INCOMPATIBLE)

  • Drop deprecated support for tuple as auth paramter. Use aiohttp.BasicAuth instead (BACKWARD INCOMPATIBLE)

  • Remove deprecated request.payload property, use content instead. (BACKWARD INCOMPATIBLE)

  • Drop all mentions about api changes in documentaion for versions older than 0.16

  • Allow to override default cookie jar #963

  • Add manylinux wheel builds

  • Dup a socket for sendfile usage #964

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-0.22.3.tar.gz (475.2 kB view hashes)

Uploaded Source

Built Distributions

aiohttp-0.22.3-cp35-cp35m-win_amd64.whl (131.2 kB view hashes)

Uploaded CPython 3.5m Windows x86-64

aiohttp-0.22.3-cp35-cp35m-win32.whl (130.0 kB view hashes)

Uploaded CPython 3.5m Windows x86

aiohttp-0.22.3-cp35-cp35m-manylinux1_x86_64.whl (148.1 kB view hashes)

Uploaded CPython 3.5m

aiohttp-0.22.3-cp35-cp35m-manylinux1_i686.whl (145.4 kB view hashes)

Uploaded CPython 3.5m

aiohttp-0.22.3-cp34-cp34m-win_amd64.whl (129.1 kB view hashes)

Uploaded CPython 3.4m Windows x86-64

aiohttp-0.22.3-cp34-cp34m-win32.whl (128.8 kB view hashes)

Uploaded CPython 3.4m Windows x86

aiohttp-0.22.3-cp34-cp34m-manylinux1_x86_64.whl (148.2 kB view hashes)

Uploaded CPython 3.4m

aiohttp-0.22.3-cp34-cp34m-manylinux1_i686.whl (145.5 kB view hashes)

Uploaded CPython 3.4m

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