Institute of Inf. Tech. - Informatikai intézet

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===== RabbitMQ example ===== 

<code bash>
git clone https://github.com/knehez/isi.git
cd isis/rabbitmq-python
docker-compose up -d rabbitmq
</code>

This is a docker-compose.yml file that defines a single service called rabbitmq using the official rabbitmq Docker image with management plugin.

<code yml>
version: '3.7'
services:
  rabbitmq:
    image: 'rabbitmq:3-management'
    ports:
        - 5672:5672
        - 15672:15672
</code>

consumer.py

<code python>
import pika
import sys
import os

connection = pika.BlockingConnection(pika.ConnectionParameters(host='rabbitmq'))
channel = connection.channel()

channel.queue_declare(queue='hello')


def callback(ch, method, properties, body):
    print(" [x] Received %r" % body)


channel.basic_consume(
    queue='hello', on_message_callback=callback, auto_ack=True)

print(' [*] Waiting for messages. ')

while (True):
    channel.start_consuming()
</code>

producer.py

<code python>
import pika

connection = pika.BlockingConnection(pika.ConnectionParameters(host='rabbitmq'))
channel = connection.channel()

channel.queue_declare(queue='hello')

channel.basic_publish(exchange='', routing_key='hello', body='Hello World!')
print(" [x] Sent 'Hello World!'")
connection.close()
</code>

Institute of Inf. Tech. - Informatikai intézet

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