nsqio 0.0.12

asyncio async/await nsq support

nsqio

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

Important

• it is not stable yet

Features

---

Http Client

• support all the method nsq http supplied

Tcp Client

Connection

• low level connection.

Reader

• reader from both lookupd for auto finding nsqd

• list of known nsqd but they can not use together.

• above two can't use together

Writer

• all the common method for nsqd writer

Next Features

different reader protocol support

more doc to write

more tests

Install

---

pip install nsqio

Usage examples

---

All you need is a loop, then enjoy. you can refer to examples, as well.

Consumer:

from nsqio import create_reader
from nsqio.utils import get_logger

loop = asyncio.get_event_loop()
async def go():
    try:
        reader = await create_reader(
            nsqd_tcp_addresses=['127.0.0.1:4150'],
            max_in_flight=200)
        await reader.subscribe('test_async_nsq', 'nsq')
        async for message in reader.messages():
            print(message.body)
            await message.fin()
    except Exception as tmp:
        self.logger.exception(tmp)
loop.run_until_complete(go())

Producer:

from nsqio import create_writer
loop = asyncio.get_event_loop()
async def go():
    writer = await create_writer(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(100):
        await writer.pub('test_async_nsq', 'test_async_nsq:{i}'.format(i=i))
        await writer.dpub('test_async_nsq', i * 1000,
                                'test_delay_async_nsq:{i}'.format(i=i))
loop.run_until_complete(go())

Requirements

• Python_ 3.6+ 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 nsqio is offered under MIT license.