50 lines
1.4 KiB
ReStructuredText
50 lines
1.4 KiB
ReStructuredText
Twisted Consumer Example
|
|
========================
|
|
Example of writing a consumer using the :py:class:`Twisted connection adapter <pika.adapters.twisted_connection.TwistedConnection>`::
|
|
|
|
# -*- coding:utf-8 -*-
|
|
|
|
import pika
|
|
from pika import exceptions
|
|
from pika.adapters import twisted_connection
|
|
from twisted.internet import defer, reactor, protocol,task
|
|
|
|
|
|
@defer.inlineCallbacks
|
|
def run(connection):
|
|
|
|
channel = yield connection.channel()
|
|
|
|
exchange = yield channel.exchange_declare(exchange='topic_link', exchange_type='topic')
|
|
|
|
queue = yield channel.queue_declare(queue='hello', auto_delete=False, exclusive=False)
|
|
|
|
yield channel.queue_bind(exchange='topic_link',queue='hello',routing_key='hello.world')
|
|
|
|
yield channel.basic_qos(prefetch_count=1)
|
|
|
|
queue_object, consumer_tag = yield channel.basic_consume(queue='hello',no_ack=False)
|
|
|
|
l = task.LoopingCall(read, queue_object)
|
|
|
|
l.start(0.01)
|
|
|
|
|
|
@defer.inlineCallbacks
|
|
def read(queue_object):
|
|
|
|
ch,method,properties,body = yield queue_object.get()
|
|
|
|
if body:
|
|
print(body)
|
|
|
|
yield ch.basic_ack(delivery_tag=method.delivery_tag)
|
|
|
|
|
|
parameters = pika.ConnectionParameters()
|
|
cc = protocol.ClientCreator(reactor, twisted_connection.TwistedProtocolConnection, parameters)
|
|
d = cc.connectTCP('hostname', 5672)
|
|
d.addCallback(lambda protocol: protocol.ready)
|
|
d.addCallback(run)
|
|
reactor.run()
|