aio-libs / aiohttp

================================== Async http client/server framework ================================== .. 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://badge.fury.io/py/aiohttp.svg :target: https://pypi.org/project/aiohttp :alt: Latest PyPI package version .. image:: https://img.shields.io/pypi/dm/aiohttp :target: https://pypistats.org/packages/aiohttp :alt: Downloads count .. image:: https://readthedocs.org/projects/aiohttp/badge/?version=latest :target: https://docs.aiohttp.org/ :alt: Latest Read The Docs .. 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 Key Features ============ • Supports both client and server side of HTTP protocol. • Supports both client and server Web-Sockets out-of-the-box and avoids Callback Hell. • Provides Web-server with middleware and pluggable routing. Getting started =============== Client ------ 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: ... Coming from _ ? Read _. Server ------ 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) Documentation ============= https://aiohttp.readthedocs.io/ Demos ===== https://github.com/aio-libs/aiohttp-demos External links ============== • _ • _ • _ Feel free to make a Pull Request for adding your link to these pages! Communication channels ====================== *aio-libs Discussions*: https://github.com/aio-libs/aiohttp/discussions *Matrix*: _ We support _. Please add *aiohttp* tag to your question there. Requirements ============ • multidict_ • yarl_ • frozenlist_ Optionally you may install the aiodns_ library (highly recommended for sake of speed). .. _aiodns: https://pypi.python.org/pypi/aiodns .. _multidict: https://pypi.python.org/pypi/multidict .. _frozenlist: https://pypi.org/project/frozenlist/ .. _yarl: https://pypi.python.org/pypi/yarl License ======= aiohttp is offered under the Apache 2 license. Keepsafe ======== The aiohttp community would like to thank Keepsafe (https://www.getkeepsafe.com) for its support in the early days of the project. Source code =========== The latest developer version is available in a GitHub repository: https://github.com/aio-libs/aiohttp Benchmarks ========== 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 -------- .. 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 .. image:: https://insights.linuxfoundation.org/api/badge/health-score?project=aiohttp :target: https://insights.linuxfoundation.org/project/aiohttp :alt: LFX Health Score