Server example

service.py

import asyncio
import ssl

async def handle_echo(reader, writer):
    data = await reader.read(100)
    message = data.decode()
    addr = writer.get_extra_info('peername')
    print("Received %r from %r" % (message, addr))

    print("Send: %r" % message)
    writer.write(data)
    await writer.drain()


loop = asyncio.get_event_loop()

sc = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
sc.load_cert_chain('localhost.crt', 'localhost.key')

coro = asyncio.start_server(handle_echo, '127.0.0.1', 5000, loop=loop, ssl=sc)
server = loop.run_until_complete(coro)

try:
    loop.run_forever()
except KeyboardInterrupt:
    pass

# Close the server
server.close()
loop.run_until_complete(server.wait_closed())
loop.close()