400 Bad Request in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to return a 400 Bad Request status in a REST API response.

Rest API

return Response(status=[1])

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

A500

B200

C400

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 which means OK instead of 400.

Using 404 which means Not Found.

Using 500 which means Internal Server Error.

The HTTP status code 400 means Bad Request, indicating the server cannot process the request due to client error.

2fill in blank

medium

Complete the code to check if the request JSON is missing a required field and return 400 Bad Request.

Rest API

if 'name' not in request.json:
    [1] 'Missing name field', 400

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

Areturn

Braise

Cabort

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Using abort without importing it.

Using raise which is for exceptions.

Using print which only outputs to console.

We use return to send a response back with a message and status code 400.

3fill in blank

hard

Fix the error in the code to correctly return a 400 Bad Request with a JSON error message.

Rest API

return jsonify(error='Invalid input'), [1]

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

A200

B400

C404

D500

Attempts:

3 left

💡 Hint

Common Mistakes

Returning 200 which means success.

Returning 404 which means Not Found.

Returning 500 which means server error.

The second value in the return tuple is the HTTP status code. Use 400 for Bad Request.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that filters keys with empty values and returns 400 if any are found.

Rest API

errors = {key: value for key, value in data.items() if value [1] ''}
if errors:
    return jsonify(errors), [2]

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

A==

B400

C!=

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Using != instead of == in the comprehension.

Returning status 200 instead of 400.

The comprehension finds keys with empty string values (value == ''). If any errors exist, return them with status 400.

5fill in blank

hard

Fill all three blanks to validate input length and return 400 Bad Request if invalid.

Rest API

if len([1]) [2] [3]:
    return jsonify(error='Input too short'), 400

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

Ainput_data

B<

C5

Dinput

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable name like 'input_data'.

Using > instead of < for length check.

Using a wrong number for length.

Check if the length of input is less than 5, then return 400 Bad Request.