Headers exchange in RabbitMQ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a headers exchange named 'logs_headers'.

RabbitMQ

channel.exchange_declare(exchange='logs_headers', exchange_type='[1]')

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

Aheaders

Btopic

Cdirect

Dfanout

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'direct' or 'topic' instead of 'headers' exchange type.

The exchange type for headers exchange is headers.

2fill in blank

medium

Complete the code to bind a queue named 'error_logs' to the headers exchange with header 'x-match' set to 'all'.

RabbitMQ

channel.queue_bind(queue='error_logs', exchange='logs_headers', arguments=[1])

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

A{'x-match': 'all', 'severity': 'error'}

B{'x-match': 'any', 'severity': 'error'}

C{'x-match': 'all', 'type': 'info'}

D{'x-match': 'any', 'type': 'error'}

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'any' instead of 'all' for strict matching.

Binding with 'x-match': 'all' means all headers must match. Here, we want severity 'error'.

3fill in blank

hard

Fix the error in the code to publish a message with headers 'severity' set to 'error' and 'format' set to 'pdf'.

RabbitMQ

channel.basic_publish(exchange='logs_headers', routing_key='', body='Error report', properties=pika.BasicProperties(headers=[1]))

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

A('severity', 'error', 'format', 'pdf')

B['severity', 'error', 'format', 'pdf']

C'severity=error, format=pdf'

D{'severity': 'error', 'format': 'pdf'}

Attempts:

3 left

💡 Hint

Common Mistakes

Using list or string instead of dictionary for headers.

Headers must be a dictionary. Option D correctly uses a dict with keys and values.

4fill in blank

hard

Fill both blanks to declare a headers exchange and bind a queue with 'x-match' set to 'any'.

RabbitMQ

channel.exchange_declare(exchange='logs_headers', exchange_type='[1]')
channel.queue_bind(queue='info_logs', exchange='logs_headers', arguments=[2])

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

Aheaders

B{'x-match': 'all', 'type': 'info'}

C{'x-match': 'any', 'type': 'info'}

Ddirect

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'direct' exchange type or wrong 'x-match' value.

The exchange type must be 'headers'. The binding uses 'x-match' set to 'any' to match any header.

5fill in blank

hard

Fill all three blanks to publish a message with headers and bind a queue with matching headers.

RabbitMQ

channel.basic_publish(exchange='logs_headers', routing_key='', body='Info report', properties=pika.BasicProperties(headers=[1]))
channel.queue_bind(queue='info_logs', exchange='logs_headers', arguments=[2])
channel.exchange_declare(exchange='logs_headers', exchange_type='[3]')

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

A{'severity': 'info', 'format': 'json'}

B{'x-match': 'any', 'severity': 'info'}

Cheaders

D{'x-match': 'all', 'severity': 'error'}

Attempts:

3 left

💡 Hint

Common Mistakes

Mismatch between publish headers and binding headers.

Wrong exchange type.

Publish headers must match binding headers. Exchange type is 'headers'.