Topic exchange (pattern matching) in RabbitMQ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a topic exchange named 'logs'.

RabbitMQ

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

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

Adirect

Bfanout

Ctopic

Dheaders

Attempts:

3 left

💡 Hint

Common Mistakes

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

The exchange type for pattern matching routing keys is topic.

2fill in blank

medium

Complete the binding key to receive all logs from any service.

RabbitMQ

channel.queue_bind(exchange='logs', queue='all_logs', routing_key='[1]')

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Aservice.*

B*.logs

Clogs.#

D#

Attempts:

3 left

💡 Hint

Common Mistakes

Using '*' which matches exactly one word only.

The # wildcard matches zero or more words, so it receives all messages.

3fill in blank

hard

Fix the error in the binding key to receive logs only from 'auth' service with any severity.

RabbitMQ

channel.queue_bind(exchange='logs', queue='auth_logs', routing_key='[1]')

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Aauth.*

B*.auth

Cauth.#

D#.auth

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'auth.#' which matches zero or more words, not just one.

The binding key auth.* matches routing keys starting with 'auth' followed by exactly one word (severity).

4fill in blank

hard

Fill both blanks to bind a queue to receive error logs from any service.

RabbitMQ

channel.queue_bind(exchange='logs', queue='error_logs', routing_key='[1].[2]')

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A*

Berror

C#

Dlogs

Attempts:

3 left

💡 Hint

Common Mistakes

Using '#' which matches zero or more words, not exactly one.

The binding key *.error matches any service with 'error' severity.

5fill in blank

hard

Fill all three blanks to create a binding key that matches logs from 'auth' or 'payment' services with any severity.

RabbitMQ

binding_keys = ['auth.[1]', 'payment.[2]', '[3]']

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

A*

B#

Cerror

Dinfo

Attempts:

3 left

💡 Hint

Common Mistakes

Using specific severity words instead of wildcards.

The keys 'auth.*' and 'payment.*' match any severity for those services, and '#' matches all routing keys.