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http client/server for asyncio

Project description

http client/server for asyncio

aiohttp logo https://secure.travis-ci.org/KeepSafe/aiohttp.png

Requirements

License

aiohttp is offered under the Apache 2 license.

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 (experimental)

In aiohttp 0.10 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 = 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

0.10.1 (11-17-2014)

  • aiohttp.web.HTTPException and descendants now files response body with string like 400: 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

0.9.3 (10-30-2014)

  • Fix compatibility with asyncio 3.4.1+ #170

0.9.2 (10-16-2014)

  • Improve redirect handling #157
  • Send raw files as is #153
  • Better websocket support #150

0.9.1 (08-30-2014)

  • Added MultiDict support for client request params and data #114.
  • Fixed parameter type for IncompleteRead exception #118.
  • Strictly require ASCII headers names and values #137
  • Keep port in ProxyConnector #128.
  • Python 3.4.1 compatibility #131.

0.9.0 (07-08-2014)

  • Better client basic authentication support #112.
  • Fixed incorrect line splitting in HttpRequestParser #97.
  • Support StreamReader and DataQueue as request data.
  • Client files handling refactoring #20.
  • Backward incompatible: Replace DataQueue with StreamReader for request payload #87.

0.8.4 (07-04-2014)

  • Change ProxyConnector authorization parameters.

0.8.3 (07-03-2014)

  • Publish TCPConnector properties: verify_ssl, family, resolve, resolved_hosts.
  • Don’t parse message body for HEAD responses.
  • Refactor client response decoding.

0.8.2 (06-22-2014)

  • Make ProxyConnector.proxy immutable property.
  • Make UnixConnector.path immutable property.
  • Fix resource leak for aiohttp.request() with implicit connector.
  • Rename Connector’s reuse_timeout to keepalive_timeout.

0.8.1 (06-18-2014)

  • Use case insensitive multidict for server request/response headers.
  • MultiDict.getall() accepts default value.
  • Catch server ConnectionError.
  • Accept MultiDict (and derived) instances in aiohttp.request header argument.
  • Proxy ‘CONNECT’ support.

0.8.0 (06-06-2014)

  • Add support for utf-8 values in HTTP headers
  • Allow to use custom response class instead of HttpResponse
  • Use MultiDict for client request headers
  • Use MultiDict for server request/response headers
  • Store response headers in ClientResponse.headers attribute
  • Get rid of timeout parameter in aiohttp.client API
  • Exceptions refactoring

0.7.3 (05-20-2014)

  • Simple HTTP proxy support.

0.7.2 (05-14-2014)

  • Get rid of __del__ methods
  • Use ResourceWarning instead of logging warning record.

0.7.1 (04-28-2014)

  • Do not unquote client request urls.
  • Allow multple waiters on transport drain.
  • Do not return client connection to pool in case of exceptions.
  • Rename SocketConnector to TCPConnector and UnixSocketConnector to UnixConnector.

0.7.0 (04-16-2014)

  • Connection flow control.
  • Http client session/connection pool refactoring.
  • Better handling for bad server requests.

0.6.5 (03-29-2014)

  • Added client session reuse timeout.
  • Better client request cancellation support.
  • Better handling responses without content length.
  • Added HttpClient verify_ssl parameter support.

0.6.4 (02-27-2014)

  • Log content-length missing warning only for put and post requests.

0.6.3 (02-27-2014)

  • Better support for server exit.
  • Read response body until eof if content-length is not defined #14

0.6.2 (02-18-2014)

  • Fix trailing char in allowed_methods.
  • Start slow request timer for first request.

0.6.1 (02-17-2014)

  • Added utility method HttpResponse.read_and_close()
  • Added slow request timeout.
  • Enable socket SO_KEEPALIVE if available. (@polymorphm)

0.6.0 (02-12-2014)

  • Better handling for process exit.

0.5.0 (01-29-2014)

  • Allow to use custom HttpRequest client class.
  • Use gunicorn keepalive setting for async worker.
  • Log leaking responses.
  • python 3.4 compatibility

0.4.4 (11-15-2013)

  • Resolve only AF_INET family, because it is not clear how to pass extra info to asyncio.

0.4.3 (11-15-2013)

  • Allow to wait completion of request with HttpResponse.wait_for_close()

0.4.2 (11-14-2013)

  • Handle exception in client request stream.
  • Prevent host resolving for each client request.

0.4.1 (11-12-2013)

  • Added client support for expect: 100-continue header.

0.4 (11-06-2013)

  • Added custom wsgi application close procedure
  • Fixed concurrent host failure in HttpClient

0.3 (11-04-2013)

  • Added PortMapperWorker
  • Added HttpClient
  • Added tcp connection timeout to http client
  • Better client connection errors handling
  • Gracefully handle process exit

0.2

  • Fix packaging

Project details


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