404 Not Found in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to return a 404 Not Found status in a REST API response.

Rest API

return Response(status=[1])

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

A404

B500

C302

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 which means success instead of 404.

Using 500 which means server error instead of 404.

The HTTP status code 404 means "Not Found". It tells the client the requested resource does not exist.

2fill in blank

medium

Complete the code to check if a resource exists and return 404 if not found.

Rest API

if resource is None:
    return [1](status=404)

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

AResponse

Bredirect

Cprint

Draise

Attempts:

3 left

💡 Hint

Common Mistakes

Using print instead of returning a response.

Using raise without specifying an exception.

We return a Response object with status 404 to indicate the resource was not found.

3fill in blank

hard

Fix the error in the code to correctly return a 404 Not Found JSON response.

Rest API

return Response({"error": "Not found"}, status=[1])

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

A200

B404

C400

D201

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 which means success.

Using 400 which means bad request.

The status code must be 404 to indicate the resource was not found, not 200 or others.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps resource names to 404 if missing.

Rest API

missing_resources = {name: [1] for name in resources if resources[name] [2] None}

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

A404

B==

C!=

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' instead of '==' to check for None.

Using None as the value instead of 404.

The dictionary maps names to 404 for resources that are exactly None (missing).

5fill in blank

hard

Fill all three blanks to filter and return 404 for missing items in a dictionary.

Rest API

result = [1]({key: value for key, value in data.items() if value [2] None and value [3] ''})

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

Adict

B!=

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '!=' in conditions.

Not wrapping comprehension with dict().

We create a dictionary with items where value is not None and not empty string, using dict() and '!=' operators.