python/example/fifo_producer_example.py

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# 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
#
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from rocketmq import ClientConfiguration, Credentials, Message, Producer

if __name__ == '__main__':
    endpoints = "foobar.com:8080"
    credentials = Credentials()
    # if auth enable
    # credentials = Credentials("ak", "sk")
    config = ClientConfiguration(endpoints, credentials)
    # with namespace
    # config = ClientConfiguration(endpoints, credentials, "namespace")
    topic = "fifo-topic"
    producer = Producer(config, (topic,))

    try:
        producer.startup()
        try:
            msg = Message()
            # topic for the current message
            msg.topic = topic
            msg.body = "hello, rocketmq.".encode('utf-8')
            # secondary classifier of message besides topic
            msg.tag = "rocketmq-send-fifo-message"
            # message group decides the message delivery order
            msg.message_group = "your-message-group0"
            res = producer.send(msg)
            print(f"{producer.__str__()} send message success. {res}")
            producer.shutdown()
            print(f"{producer.__str__()} shutdown.")
        except Exception as e:
            print(f"normal producer example raise exception: {e}")
            producer.shutdown()
    except Exception as e:
        print(f"{producer.__str__()} startup raise exception: {e}")
        producer.shutdown()