Feature flags in Microservices - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a feature is enabled before executing it.

Microservices

if feature_flags.is_enabled([1]):
    execute_new_feature()

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

ATrue

Bnew_ui

Cfeature_name

D"new_ui"

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the feature flag name without quotes causing a NameError.

Passing a boolean value instead of the feature flag name.

The feature flag name must be passed as a string to check if it is enabled.

2fill in blank

medium

Complete the code to fetch the feature flag status from the config service.

Microservices

status = config_service.get_flag_status([1])

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

A"beta_feature"

Bfeature_id

CTrue

Dflag_status

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a variable name instead of a string literal.

Using boolean values instead of flag names.

The feature flag identifier should be a string representing the flag name.

3fill in blank

hard

Fix the error in the code that updates a feature flag status.

Microservices

feature_flags.update_flag([1], True)

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

A123

B"new_feature"

CTrue

Dflag_enabled

Attempts:

3 left

💡 Hint

Common Mistakes

Passing an integer instead of a string as the flag name.

Passing a boolean instead of the flag name.

The feature flag name must be a string to correctly identify which flag to update.

4fill in blank

hard

Fill both blanks to create a dictionary of feature flags with their enabled status.

Microservices

flags = [1](flag: feature_flags.[2](flag) for flag in all_flags)

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Adict

Bis_enabled

Clist

Dget_status

Attempts:

3 left

💡 Hint

Common Mistakes

Using list instead of dict causing wrong data structure.

Using a wrong method name to check flag status.

Use dict to create a dictionary and is_enabled to check each flag's status.

5fill in blank

hard

Fill all three blanks to filter enabled features and store their names in a list.

Microservices

enabled_features = [flag for flag in all_flags if feature_flags.[1](flag) [2] [3]]

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

Ais_enabled

B==

CTrue

Dget_flag

Attempts:

3 left

💡 Hint

Common Mistakes

Using assignment = instead of comparison ==.

Comparing with False instead of True.

Use is_enabled to check the flag, compare it with True using == to filter enabled flags.