Publishing messages in RabbitMQ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a queue named 'task_queue'.

RabbitMQ

channel.queue_declare(queue=[1])

Drag options to blanks, or click blank then click option'

Aqueue_task

Btask_queue

C'task_queue'

D'queue_task'

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put quotes around the queue name.

Using the wrong queue name.

The queue name must be a string, so it needs to be enclosed in quotes.

2fill in blank

medium

Complete the code to publish a message 'Hello World!' to the default exchange with routing key 'task_queue'.

RabbitMQ

channel.basic_publish(exchange=[1], routing_key='task_queue', body='Hello World!')

Drag options to blanks, or click blank then click option'

A'task_queue'

B''

C'default'

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'default' as exchange name instead of empty string.

Using None or queue name as exchange.

The default exchange is an empty string ''.

3fill in blank

hard

Fix the error in the code to publish a persistent message to 'task_queue'.

RabbitMQ

channel.basic_publish(exchange='', routing_key='task_queue', body='Hello World!', properties=[1])

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Apika.BasicProperties(delivery_mode=2)

Bpika.BasicProperties(delivery_mode=1)

Cpika.BasicProperties(persistent=True)

Dpika.BasicProperties(delivery_mode='2')

Attempts:

3 left

💡 Hint

Common Mistakes

Using delivery_mode=1 which is non-persistent.

Passing delivery_mode as a string instead of integer.

Using persistent=True which is not a valid property.

To make a message persistent, set delivery_mode=2 as an integer in BasicProperties.

4fill in blank

hard

Fill both blanks to publish a message with content type 'text/plain' and priority 5.

RabbitMQ

channel.basic_publish(exchange='', routing_key='task_queue', body='Hello', properties=pika.BasicProperties(content_type=[1], priority=[2]))

Drag options to blanks, or click blank then click option'

A'text/plain'

B5

C'application/json'

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong content type like 'application/json'.

Using priority as a string instead of integer.

Content type should be 'text/plain' as a string, and priority is an integer 5.

5fill in blank

hard

Fill all three blanks to publish a message with delivery_mode 2, content_type 'application/json', and priority 8.

RabbitMQ

channel.basic_publish(exchange='', routing_key='task_queue', body='{}', properties=pika.BasicProperties(delivery_mode=[1], content_type=[2], priority=[3]))

Drag options to blanks, or click blank then click option'

A1

B'application/json'

C8

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using delivery_mode 1 which is non-persistent.

Using wrong content_type string.

Using priority as string instead of integer.

delivery_mode=2 makes message persistent, content_type is 'application/json', and priority is 8.