http client/server for asyncio

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Features

  • Supports both client and server side of HTTP protocol.
  • Supports Web-Sockets out-of-the-box.
  • Web-server has middlewares and pluggable routing.

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/

Source code

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

Getting started

Client ^^^^^^

To retrieve something from the web:

.. code-block:: python

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:

.. code-block:: python

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:

.. code-block:: python

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:

.. code-block:: python

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()