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