DAS_2023_1/savenkov_alexander_lab_4/inventory_consumer.py

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import pika
import time
def process_inventory_event(ch, method, properties, body):
decoded_message = body.decode('utf-8')
print(f" [x] Processing Inventory Event: {decoded_message}")
time.sleep(2)
print(" [x] Done")
ch.basic_ack(delivery_tag=method.delivery_tag)
def main():
# Устанавливаем соединение с сервером RabbitMQ
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()
# Объявляем exchange с типом 'fanout'
channel.exchange_declare(exchange='events', exchange_type='fanout')
# Создаем очередь с уникальным именем
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
# Привязываем очередь к exchange
channel.queue_bind(exchange='events', queue=queue_name)
# Указываем, как обрабатывать сообщения при получении
channel.basic_consume(queue=queue_name, on_message_callback=process_inventory_event)
print(' [*] Waiting for Inventory Events. To exit press CTRL+C')
# Запускаем бесконечный цикл получения и обработки сообщений
channel.start_consuming()
if __name__ == '__main__':
main()