tests/docker-images/latest-version-image/python-examples/consumer_schema.py

#!/usr/bin/env python3
#
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
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# KIND, either express or implied.  See the License for the
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import pulsar
from pulsar.schema import *
import sys


class ReceiveExample(Record):
    x = Integer()
    y = Long()


service_url = sys.argv[1]
topic = sys.argv[2]

client = pulsar.Client(service_url)

consumer = client.subscribe(
                    topic=topic,
                    subscription_name="my-subscription",
                    schema=JsonSchema(ReceiveExample)
                )

msg = consumer.receive()

obj = msg.value()

assert obj.x == 1
assert obj.y == 2

client.close()