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HTTP/2 implementation with hyper-h2 on Python 3 asyncio.

Project Description


HTTP/2 implementation with hyper-h2 on Python 3 asyncio.


  • Asynchronous HTTP/2 client and server
  • Managed flow control
  • More to come


# Server request handler
async def on_connected(proto):
    while True:
        # Receive request
        stream_id, headers = await proto.recv_request()

        # Send response headers
        await proto.send_headers(stream_id, {':status': '200'})

        # Send some response
        await proto.send_data(stream_id, b'hello, ')

        # Read all request body
        resp = await proto.read_stream(stream_id, -1)

        # Send more response
        await proto.send_data(stream_id, resp)

        # Send trailers
        await proto.send_headers(stream_id, {'len': str(len(resp))},

# Start server on random port, with maximum concurrent requests of 3
server = await aioh2.start_server(
    lambda p: asyncio.get_event_loop().create_task(on_connected(p)),
    port=0, concurrency=3)
port = server.sockets[0].getsockname()[1]

# Open client connection
client = await aioh2.open_connection('', port)

# Start request with headers
stream_id = await client.start_request(
    {':method': 'GET', ':path': '/index.html'})

# Send request body
await client.send_data(stream_id, b'world', end_stream=True)

# Receive response
headers = await client.recv_response(stream_id)

# Read all response body
resp = await client.read_stream(stream_id, -1)

# Read response trailers
trailers = await client.recv_trailers(stream_id)


This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.


0.1.0 (2016-1-22)

  • First release on PyPI.
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