Role-based access control in Microservices - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a user has the required role before accessing a service.

Microservices

if user.roles.__contains__([1]):
    allow_access()

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

A"admin"

Baccess

Croles

Duser.roles

Attempts:

3 left

💡 Hint

Common Mistakes

Using the variable name 'roles' instead of the role string.

Checking the entire roles list instead of a specific role.

The code checks if the user's roles include the string "admin" to allow access.

2fill in blank

medium

Complete the code to assign roles to a new user in the microservice.

Microservices

new_user.roles = [1]

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

A["guest"]

B"admin"

Croles

Duser.roles

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning a single string instead of a list.

Using undefined variables like 'roles' without declaration.

Roles are assigned as a list of strings. Here, the new user is assigned the role "guest".

3fill in blank

hard

Fix the error in the code that checks if a user has the 'editor' role.

Microservices

if [1] in user.roles:
    grant_edit_permission()

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

Auser

Broles

Cuser.roles

D"editor"

Attempts:

3 left

💡 Hint

Common Mistakes

Checking if the entire roles list is in itself.

Using variable names instead of the role string.

The code should check if the string "editor" is in the user's roles list.

4fill in blank

hard

Fill both blanks to create a dictionary mapping roles to permissions.

Microservices

role_permissions = { [1]: [2] for role in roles_list }

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

Arole

B["read"]

Crole.upper()

D["write"]

Attempts:

3 left

💡 Hint

Common Mistakes

Using role.upper() as key which changes the role name.

Assigning a string instead of a list for permissions.

The dictionary maps each role to a list of permissions, here "read" permission.

5fill in blank

hard

Fill all three blanks to filter users who have the 'admin' role and create a list of their IDs.

Microservices

admin_ids = [user.[1] for user in users if '[2]' in user.[3]]

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

Aid

Badmin

Croles

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'name' instead of 'id' for user identifier.

Checking for 'admin' in wrong attribute.

Using variable names instead of string for role.

The code collects the 'id' of users whose 'roles' list contains the string 'admin'.