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from __future__ import annotations
from kombu import Connection, Exchange, Queue
from kombu.transport.native_delayed_delivery import (
bind_queue_to_native_delayed_delivery_exchange, calculate_routing_key,
declare_native_delayed_delivery_exchanges_and_queues, level_name)
with Connection('amqp://guest:guest@localhost:5672//') as connection:
declare_native_delayed_delivery_exchanges_and_queues(connection, 'quorum')
channel = connection.channel()
destination_exchange = Exchange('destination_exchange', type='topic')
queue = Queue("destination", exchange=destination_exchange, routing_key='destination_route')
queue.declare(channel=connection.channel())
bind_queue_to_native_delayed_delivery_exchange(connection, queue)
with connection.Producer(channel=channel) as producer:
routing_key = calculate_routing_key(30, 'destination_route')
producer.publish(
"delayed msg",
routing_key=routing_key,
exchange=level_name(27)
)
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