Welcome to aio-pika’s documentation!

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aio_pika it’s a wrapper for the PIKA for asyncio and humans.

Features

  • Completely asynchronous API.
  • Object oriented API.
  • Auto-reconnects with complete state recovery with connect_robust (e.g. declared queues or exchanges, consuming state and bindings).
  • Python 3.4+ compatible (include 3.6).

Installation

Installation with pip:

pip install aio-pika

Installation from git:

# via pip
pip install https://github.com/mosquito/aio-pika/archive/master.zip

# manually
git clone https://github.com/mosquito/aio-pika.git
cd aio-pika
python setup.py install

Usage example

Simple consumer:

import asyncio
import aio_pika


async def main(loop):
    connection = await aio_pika.connect_robust("amqp://guest:guest@127.0.0.1/", loop=loop)

    queue_name = "test_queue"

    # Creating channel
    channel = await connection.channel()    # type: aio_pika.Channel

    # Declaring queue
    queue = await channel.declare_queue(queue_name, auto_delete=True)   # type: aio_pika.Queue

    async for message in queue:
        with message.process():
            print(message.body)

            if queue.name in message.body.decode():
                break


if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main(loop))
    loop.close()

Simple publisher:

import asyncio
import aio_pika


async def main(loop):
    connection = await aio_pika.connect_robust("amqp://guest:guest@127.0.0.1/", loop=loop)

    routing_key = "test_queue"

    channel = await connection.channel()    # type: aio_pika.Channel

    await channel.default_exchange.publish(
        aio_pika.Message(
            body='Hello {}'.format(routing_key).encode()
        ),
        routing_key=routing_key
    )

    await connection.close()


if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main(loop))
    loop.close()

Get single message example:

import asyncio
from aio_pika import connect_robust, Message


async def main(loop):
    connection = await connect_robust("amqp://guest:guest@127.0.0.1/", loop=loop)

    queue_name = "test_queue"
    routing_key = "test_queue"

    # Creating channel
    channel = await connection.channel()

    # Declaring exchange
    exchange = await channel.declare_exchange('direct', auto_delete=True)

    # Declaring queue
    queue = await channel.declare_queue(queue_name, auto_delete=True)

    # Binding queue
    await queue.bind(exchange, routing_key)

    await exchange.publish(
        Message(
            bytes('Hello', 'utf-8'),
            content_type='text/plain',
            headers={'foo': 'bar'}
        ),
        routing_key
    )

    # Receiving message
    incoming_message = await queue.get(timeout=5)

    # Confirm message
    incoming_message.ack()

    await queue.unbind(exchange, routing_key)
    await queue.delete()
    await connection.close()


if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main(loop))

Development

Clone the project:

git clone https://github.com/mosquito/aio-pika.git
cd aio-pika

Create a new virtualenv for aio_pika:

virtualenv -p python3.5 env

Install all requirements for aio_pika:

env/bin/pip install -e '.[develop]'

Thanks for contributing

Versioning

This software follows Semantic Versioning