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| # consumer.py | |
| # https://yeti.co/blog/establishing-a-websocket-pubsub-server-with-redis-and-asyncio-for-the-light-sensor/ | |
| import asyncio | |
| from aioredis import create_connection, Channel | |
| import websockets | |
| async def publish_to_redis(msg, path): | |
| # Connect to Redis | |
| conn = await create_connection(('localhost', 6379)) | |
| # Publish to channel "lightlevel{path}" | |
| await conn.execute('publish', 'lightlevel{}'.format(path), msg) | |
| async def server(websocket, path): | |
| try: | |
| while True: | |
| # Receive data from "the outside world" | |
| message = await websocket.recv() | |
| # Feed this data to the PUBLISH co-routine | |
| await publish_to_redis(message, path) | |
| await asyncio.sleep(1) | |
| except websockets.exceptions.ConnectionClosed: | |
| print('Connection Closed!') | |
| if __name__ == '__main__': | |
| # Boiler-plate for the websocket server, running on localhost, port 8765 | |
| loop = asyncio.get_event_loop() | |
| loop.set_debug(True) | |
| ws_server = websockets.serve(server, 'localhost', 8765) | |
| loop.run_until_complete(ws_server) | |
| loop.run_forever() |
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