asyncnsq 0.4.0

asyncio async/await nsq support

async nsq with python3.6 await/async supported

if you dont like the pynsq(which use tornado) way to interact with nsq, then this library may be suitable for you

you can use this library as the common way to write things

Latest Updates

• support dpub

• support lookupd_http

Install

pip install asyncnsq

Usage examples

All you need is a loop, then enjoy

Consumer:

loop = asyncio.get_event_loop()

async def go():
    try:
        nsq_consumer = await create_nsq_consumer(
            lookupd_http_addresses=[
                ('127.0.0.1', 4161)],
            max_in_flight=200)
        await nsq_consumer.subscribe('test_async_nsq', 'nsq')
        for waiter in nsq_consumer.wait_messages():
            message = await waiter
            print(message.body)
            await message.fin()
        nsq_consumer = await create_nsq_consumer(
            host=['tcp://127.0.0.1:4150'],
            max_in_flight=200)
        await nsq_consumer.subscribe('test_async_nsq', 'nsq')
        for waiter in nsq_consumer.wait_messages():
            message = await waiter
            print(message.body)
            await message.fin()
    except Exception as tmp:
        logger.exception(tmp)

loop.run_until_complete(go())

Producer:

loop = asyncio.get_event_loop()

async def go():
    nsq_producer = await create_nsq_producer(host='127.0.0.1', port=4150,
                                             heartbeat_interval=30000,
                                             feature_negotiation=True,
                                             tls_v1=True,
                                             snappy=False,
                                             deflate=False,
                                             deflate_level=0,
                                             loop=loop)
    for i in range(10):
        await nsq_producer.pub('test_async_nsq', 'test_async_nsq:{i}'.format(i=i))
        await nsq_producer.dpub('test_async_nsq', i * 1000,
                                'test_delay_async_nsq:{i}'.format(i=i))
loop.run_until_complete(go())

Requirements

• Python_ 3.5+ https://www.python.org

• nsq_ http://nsq.io

• python-snappy

  1. ubuntu:

     • sudo apt-get install libsnappy-dev

     • pip install python-snappy

  2. centos:

     • sudo yum install snappy-devel

     • pip install python-snappy

  3. mac:

     • brew install snappy # snappy library from Google

     • CPPFLAGS=“-I/usr/local/include -L/usr/local/lib” pip install python-snappy

License

The asyncnsq is offered under MIT license.