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aiormq-6.7.2
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مشاهده بیشترتوضیحات
Pure python AMQP asynchronous client library
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | aiormq-6.7.2 |
| نام | aiormq |
| نسخه کتابخانه | 6.7.2 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Dmitry Orlov |
| ایمیل نویسنده | me@mosquito.su |
| آدرس صفحه اصلی | https://github.com/mosquito/aiormq |
| آدرس اینترنتی | https://pypi.org/project/aiormq/ |
| مجوز | Apache-2.0 |
======
AIORMQ
======
.. image:: https://coveralls.io/repos/github/mosquito/aiormq/badge.svg?branch=master
:target: https://coveralls.io/github/mosquito/aiormq?branch=master
:alt: Coveralls
.. image:: https://img.shields.io/pypi/status/aiormq.svg
:target: https://github.com/mosquito/aiormq
:alt: Status
.. image:: https://github.com/mosquito/aiormq/workflows/tests/badge.svg
:target: https://github.com/mosquito/aiormq/actions?query=workflow%3Atests
:alt: Build status
.. image:: https://img.shields.io/pypi/v/aiormq.svg
:target: https://pypi.python.org/pypi/aiormq/
:alt: Latest Version
.. image:: https://img.shields.io/pypi/wheel/aiormq.svg
:target: https://pypi.python.org/pypi/aiormq/
.. image:: https://img.shields.io/pypi/pyversions/aiormq.svg
:target: https://pypi.python.org/pypi/aiormq/
.. image:: https://img.shields.io/pypi/l/aiormq.svg
:target: https://github.com/mosquito/aiormq/blob/master/LICENSE.md
aiormq is a pure python AMQP client library.
.. contents:: Table of contents
Status
======
* 3.x.x branch - Production/Stable
* 4.x.x branch - Unstable (Experimental)
* 5.x.x and greater is only Production/Stable releases.
Features
========
* Connecting by URL
* amqp example: **amqp://user:password@server.host/vhost**
* secure amqp example: **amqps://user:password@server.host/vhost?cafile=ca.pem&keyfile=key.pem&certfile=cert.pem&no_verify_ssl=0**
* Buffered queue for received frames
* Only `PLAIN`_ auth mechanism support
* `Publisher confirms`_ support
* `Transactions`_ support
* Channel based asynchronous locks
.. note::
AMQP 0.9.1 requires serialize sending for some frame types
on the channel. e.g. Content body must be following after
content header. But frames might be sent asynchronously
on another channels.
* Tracking unroutable messages
(Use **connection.channel(on_return_raises=False)** for disabling)
* Full SSL/TLS support, using your choice of:
* ``amqps://`` url query parameters:
* ``cafile=`` - string contains path to ca certificate file
* ``capath=`` - string contains path to ca certificates
* ``cadata=`` - base64 encoded ca certificate data
* ``keyfile=`` - string contains path to key file
* ``certfile=`` - string contains path to certificate file
* ``no_verify_ssl`` - boolean disables certificates validation
* ``context=`` `SSLContext`_ keyword argument to ``connect()``.
* Python `type hints`_
* Uses `pamqp`_ as an AMQP 0.9.1 frame encoder/decoder
.. _Publisher confirms: https://www.rabbitmq.com/confirms.html
.. _Transactions: https://www.rabbitmq.com/semantics.html
.. _PLAIN: https://www.rabbitmq.com/authentication.html
.. _type hints: https://docs.python.org/3/library/typing.html
.. _pamqp: https://pypi.org/project/pamqp/
.. _SSLContext: https://docs.python.org/3/library/ssl.html#ssl.SSLContext
Tutorial
========
Introduction
------------
Simple consumer
***************
.. code-block:: python
import asyncio
import aiormq
async def on_message(message):
"""
on_message doesn't necessarily have to be defined as async.
Here it is to show that it's possible.
"""
print(f" [x] Received message {message!r}")
print(f"Message body is: {message.body!r}")
print("Before sleep!")
await asyncio.sleep(5) # Represents async I/O operations
print("After sleep!")
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
# Declaring queue
declare_ok = await channel.queue_declare('helo')
consume_ok = await channel.basic_consume(
declare_ok.queue, on_message, no_ack=True
)
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
loop.run_forever()
Simple publisher
****************
.. code-block:: python
:name: test_simple_publisher
import asyncio
from typing import Optional
import aiormq
from aiormq.abc import DeliveredMessage
MESSAGE: Optional[DeliveredMessage] = None
async def main():
global MESSAGE
body = b'Hello World!'
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost//")
# Creating a channel
channel = await connection.channel()
declare_ok = await channel.queue_declare("hello", auto_delete=True)
# Sending the message
await channel.basic_publish(body, routing_key='hello')
print(f" [x] Sent {body}")
MESSAGE = await channel.basic_get(declare_ok.queue)
print(f" [x] Received message from {declare_ok.queue!r}")
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
assert MESSAGE is not None
assert MESSAGE.routing_key == "hello"
assert MESSAGE.body == b'Hello World!'
Work Queues
-----------
Create new task
***************
.. code-block:: python
import sys
import asyncio
import aiormq
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
body = b' '.join(sys.argv[1:]) or b"Hello World!"
# Sending the message
await channel.basic_publish(
body,
routing_key='task_queue',
properties=aiormq.spec.Basic.Properties(
delivery_mode=1,
)
)
print(f" [x] Sent {body!r}")
await connection.close()
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
Simple worker
*************
.. code-block:: python
import asyncio
import aiormq
import aiormq.abc
async def on_message(message: aiormq.abc.DeliveredMessage):
print(f" [x] Received message {message!r}")
print(f" Message body is: {message.body!r}")
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
await channel.basic_qos(prefetch_count=1)
# Declaring queue
declare_ok = await channel.queue_declare('task_queue', durable=True)
# Start listening the queue with name 'task_queue'
await channel.basic_consume(declare_ok.queue, on_message, no_ack=True)
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
# we enter a never-ending loop that waits for data and runs
# callbacks whenever necessary.
print(" [*] Waiting for messages. To exit press CTRL+C")
loop.run_forever()
Publish Subscribe
-----------------
Publisher
*********
.. code-block:: python
import sys
import asyncio
import aiormq
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
await channel.exchange_declare(
exchange='logs', exchange_type='fanout'
)
body = b' '.join(sys.argv[1:]) or b"Hello World!"
# Sending the message
await channel.basic_publish(
body, routing_key='info', exchange='logs'
)
print(f" [x] Sent {body!r}")
await connection.close()
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
Subscriber
**********
.. code-block:: python
import asyncio
import aiormq
import aiormq.abc
async def on_message(message: aiormq.abc.DeliveredMessage):
print(f"[x] {message.body!r}")
await message.channel.basic_ack(
message.delivery.delivery_tag
)
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
await channel.basic_qos(prefetch_count=1)
await channel.exchange_declare(
exchange='logs', exchange_type='fanout'
)
# Declaring queue
declare_ok = await channel.queue_declare(exclusive=True)
# Binding the queue to the exchange
await channel.queue_bind(declare_ok.queue, 'logs')
# Start listening the queue with name 'task_queue'
await channel.basic_consume(declare_ok.queue, on_message)
loop = asyncio.get_event_loop()
loop.create_task(main())
# we enter a never-ending loop that waits for data
# and runs callbacks whenever necessary.
print(' [*] Waiting for logs. To exit press CTRL+C')
loop.run_forever()
Routing
-------
Direct consumer
***************
.. code-block:: python
import sys
import asyncio
import aiormq
import aiormq.abc
async def on_message(message: aiormq.abc.DeliveredMessage):
print(f" [x] {message.delivery.routing_key!r}:{message.body!r}"
await message.channel.basic_ack(
message.delivery.delivery_tag
)
async def main():
# Perform connection
connection = aiormq.Connection("amqp://guest:guest@localhost/")
await connection.connect()
# Creating a channel
channel = await connection.channel()
await channel.basic_qos(prefetch_count=1)
severities = sys.argv[1:]
if not severities:
sys.stderr.write(f"Usage: {sys.argv[0]} [info] [warning] [error]\n")
sys.exit(1)
# Declare an exchange
await channel.exchange_declare(
exchange='logs', exchange_type='direct'
)
# Declaring random queue
declare_ok = await channel.queue_declare(durable=True, auto_delete=True)
for severity in severities:
await channel.queue_bind(
declare_ok.queue, 'logs', routing_key=severity
)
# Start listening the random queue
await channel.basic_consume(declare_ok.queue, on_message)
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
# we enter a never-ending loop that waits for data
# and runs callbacks whenever necessary.
print(" [*] Waiting for messages. To exit press CTRL+C")
loop.run_forever()
Emitter
*******
.. code-block:: python
import sys
import asyncio
import aiormq
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
await channel.exchange_declare(
exchange='logs', exchange_type='direct'
)
body = (
b' '.join(arg.encode() for arg in sys.argv[2:])
or
b"Hello World!"
)
# Sending the message
routing_key = sys.argv[1] if len(sys.argv) > 2 else 'info'
await channel.basic_publish(
body, exchange='logs', routing_key=routing_key,
properties=aiormq.spec.Basic.Properties(
delivery_mode=1
)
)
print(f" [x] Sent {body!r}")
await connection.close()
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
Topics
------
Publisher
*********
.. code-block:: python
import sys
import asyncio
import aiormq
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
await channel.exchange_declare('topic_logs', exchange_type='topic')
routing_key = (
sys.argv[1] if len(sys.argv) > 2 else 'anonymous.info'
)
body = (
b' '.join(arg.encode() for arg in sys.argv[2:])
or
b"Hello World!"
)
# Sending the message
await channel.basic_publish(
body, exchange='topic_logs', routing_key=routing_key,
properties=aiormq.spec.Basic.Properties(
delivery_mode=1
)
)
print(f" [x] Sent {body!r}")
await connection.close()
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
Consumer
********
.. code-block:: python
import asyncio
import sys
import aiormq
import aiormq.abc
async def on_message(message: aiormq.abc.DeliveredMessage):
print(f" [x] {message.delivery.routing_key!r}:{message.body!r}")
await message.channel.basic_ack(
message.delivery.delivery_tag
)
async def main():
# Perform connection
connection = await aiormq.connect(
"amqp://guest:guest@localhost/", loop=loop
)
# Creating a channel
channel = await connection.channel()
await channel.basic_qos(prefetch_count=1)
# Declare an exchange
await channel.exchange_declare('topic_logs', exchange_type='topic')
# Declaring queue
declare_ok = await channel.queue_declare('task_queue', durable=True)
binding_keys = sys.argv[1:]
if not binding_keys:
sys.stderr.write(
f"Usage: {sys.argv[0]} [binding_key]...\n"
)
sys.exit(1)
for binding_key in binding_keys:
await channel.queue_bind(
declare_ok.queue, 'topic_logs', routing_key=binding_key
)
# Start listening the queue with name 'task_queue'
await channel.basic_consume(declare_ok.queue, on_message)
loop = asyncio.get_event_loop()
loop.create_task(main())
# we enter a never-ending loop that waits for
# data and runs callbacks whenever necessary.
print(" [*] Waiting for messages. To exit press CTRL+C")
loop.run_forever()
Remote procedure call (RPC)
---------------------------
RPC server
**********
.. code-block:: python
import asyncio
import aiormq
import aiormq.abc
def fib(n):
if n == 0:
return 0
elif n == 1:
return 1
else:
return fib(n-1) + fib(n-2)
async def on_message(message:aiormq.abc.DeliveredMessage):
n = int(message.body.decode())
print(f" [.] fib({n})")
response = str(fib(n)).encode()
await message.channel.basic_publish(
response, routing_key=message.header.properties.reply_to,
properties=aiormq.spec.Basic.Properties(
correlation_id=message.header.properties.correlation_id
),
)
await message.channel.basic_ack(message.delivery.delivery_tag)
print('Request complete')
async def main():
# Perform connection
connection = await aiormq.connect("amqp://guest:guest@localhost/")
# Creating a channel
channel = await connection.channel()
# Declaring queue
declare_ok = await channel.queue_declare('rpc_queue')
# Start listening the queue with name 'hello'
await channel.basic_consume(declare_ok.queue, on_message)
loop = asyncio.get_event_loop()
loop.create_task(main())
# we enter a never-ending loop that waits for data
# and runs callbacks whenever necessary.
print(" [x] Awaiting RPC requests")
loop.run_forever()
RPC client
**********
.. code-block:: python
import asyncio
import uuid
import aiormq
import aiormq.abc
class FibonacciRpcClient:
def __init__(self):
self.connection = None # type: aiormq.Connection
self.channel = None # type: aiormq.Channel
self.callback_queue = ''
self.futures = {}
self.loop = loop
async def connect(self):
self.connection = await aiormq.connect("amqp://guest:guest@localhost/")
self.channel = await self.connection.channel()
declare_ok = await self.channel.queue_declare(
exclusive=True, auto_delete=True
)
await self.channel.basic_consume(declare_ok.queue, self.on_response)
self.callback_queue = declare_ok.queue
return self
async def on_response(self, message: aiormq.abc.DeliveredMessage):
future = self.futures.pop(message.header.properties.correlation_id)
future.set_result(message.body)
async def call(self, n):
correlation_id = str(uuid.uuid4())
future = loop.create_future()
self.futures[correlation_id] = future
await self.channel.basic_publish(
str(n).encode(), routing_key='rpc_queue',
properties=aiormq.spec.Basic.Properties(
content_type='text/plain',
correlation_id=correlation_id,
reply_to=self.callback_queue,
)
)
return int(await future)
async def main():
fibonacci_rpc = await FibonacciRpcClient().connect()
print(" [x] Requesting fib(30)")
response = await fibonacci_rpc.call(30)
print(r" [.] Got {response!r}")
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
نیازمندی
| مقدار | نام |
|---|---|
| ==3.2.1 | pamqp |
| - | setuptools |
| - | yarl |
زبان مورد نیاز
| مقدار | نام |
|---|---|
| >=3.7,<4.0 | Python |
نحوه نصب
نصب پکیج whl aiormq-6.7.2:
pip install aiormq-6.7.2.whl
نصب پکیج tar.gz aiormq-6.7.2:
pip install aiormq-6.7.2.tar.gz