.. image:: https://raw.githubusercontent.com/aio-libs/aiohttp/master/docs/aiohttp-plain.svg :height: 64px :width: 64px :alt: aiohttp logo
|
.. image:: https://github.com/aio-libs/aiohttp/workflows/CI/badge.svg :target: https://github.com/aio-libs/aiohttp/actions?query=workflow%3ACI :alt: GitHub Actions status for master branch
.. image:: https://codecov.io/gh/aio-libs/aiohttp/branch/master/graph/badge.svg :target: https://codecov.io/gh/aio-libs/aiohttp :alt: codecov.io status for master branch
.. image:: https://img.shields.io/endpoint?url=https://codspeed.io/badge.json :target: https://codspeed.io/aio-libs/aiohttp :alt: Codspeed.io status for aiohttp
.. image:: https://badge.fury.io/py/aiohttp.svg :target: https://pypi.org/project/aiohttp :alt: Latest PyPI package version
.. image:: https://readthedocs.org/projects/aiohttp/badge/?version=latest :target: https://docs.aiohttp.org/ :alt: Latest Read The Docs
.. image:: https://img.shields.io/matrix/aio-libs:matrix.org?label=Discuss%20on%20Matrix%20at%20%23aio-libs%3Amatrix.org&logo=matrix&server_fqdn=matrix.org&style=flat :target: https://matrix.to/#/%23aio-libs:matrix.org :alt: Matrix Room — #aio-libs:matrix.org
.. image:: https://img.shields.io/matrix/aio-libs-space:matrix.org?label=Discuss%20on%20Matrix%20at%20%23aio-libs-space%3Amatrix.org&logo=matrix&server_fqdn=matrix.org&style=flat :target: https://matrix.to/#/%23aio-libs-space:matrix.org :alt: Matrix Space — #aio-libs-space:matrix.org
To get something from the web:
.. code-block:: python
import aiohttp import asyncio
async def main():
async with aiohttp.ClientSession() as session:
async with session.get('http://python.org') as response:
print("Status:", response.status)
print("Content-type:", response.headers['content-type'])
html = await response.text()
print("Body:", html[:15], "...")
asyncio.run(main())
This prints:
.. code-block::
Status: 200
Content-type: text/html; charset=utf-8
Body: <!doctype html> ...
Coming from requests <https://requests.readthedocs.io/>_ ? Read why we need so many lines <https://aiohttp.readthedocs.io/en/latest/http_request_lifecycle.html>_.
An example using a simple server:
.. code-block:: python
# examples/server_simple.py
from aiohttp import web
async def handle(request):
name = request.match_info.get('name', "Anonymous")
text = "Hello, " + name
return web.Response(text=text)
async def wshandle(request):
ws = web.WebSocketResponse()
await ws.prepare(request)
async for msg in ws:
if msg.type == web.WSMsgType.text:
await ws.send_str("Hello, {}".format(msg.data))
elif msg.type == web.WSMsgType.binary:
await ws.send_bytes(msg.data)
elif msg.type == web.WSMsgType.close:
break
return ws
app = web.Application()
app.add_routes([web.get('/', handle),
web.get('/echo', wshandle),
web.get('/{name}', handle)])
if __name__ == '__main__':
web.run_app(app)
https://aiohttp.readthedocs.io/
https://github.com/aio-libs/aiohttp-demos
Third party libraries <http://aiohttp.readthedocs.io/en/latest/third_party.html>_Built with aiohttp <http://aiohttp.readthedocs.io/en/latest/built_with.html>_Powered by aiohttp <http://aiohttp.readthedocs.io/en/latest/powered_by.html>_Feel free to make a Pull Request for adding your link to these pages!
aio-libs Discussions: https://github.com/aio-libs/aiohttp/discussions
Matrix: #aio-libs:matrix.org <https://matrix.to/#/#aio-libs:matrix.org>_
We support Stack Overflow <https://stackoverflow.com/questions/tagged/aiohttp>_.
Please add aiohttp tag to your question there.
Optionally you may install the aiodns_ library (highly recommended for sake of speed).
.. _aiodns: https://pypi.python.org/pypi/aiodns .. _attrs: https://github.com/python-attrs/attrs .. _multidict: https://pypi.python.org/pypi/multidict .. _frozenlist: https://pypi.org/project/frozenlist/ .. _yarl: https://pypi.python.org/pypi/yarl .. _async-timeout: https://pypi.python.org/pypi/async_timeout
aiohttp is offered under the Apache 2 license.
The aiohttp community would like to thank Keepsafe (https://www.getkeepsafe.com) for its support in the early days of the project.
The latest developer version is available in a GitHub repository: https://github.com/aio-libs/aiohttp
If you are interested in efficiency, the AsyncIO community maintains a list of benchmarks on the official wiki: https://github.com/python/asyncio/wiki/Benchmarks
FAQs
Async http client/server framework (asyncio)
We found that aiohttp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 5 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Research
Socket researchers have discovered malicious npm packages targeting crypto developers, stealing credentials and wallet data using spyware delivered through typosquats of popular cryptographic libraries.
Security News
Socket's package search now displays weekly downloads for npm packages, helping developers quickly assess popularity and make more informed decisions.
Security News
A Stanford study reveals 9.5% of engineers contribute almost nothing, costing tech $90B annually, with remote work fueling the rise of "ghost engineers."