Status code usage patterns in Node.js - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to send a 404 status code response in Express.

Node.js

res.status([1]).send('Not Found');

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

A200

B500

C404

D302

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 means success, not an error.

Using 500 means server error, not resource missing.

404 is the standard status code for 'Not Found'.

2fill in blank

medium

Complete the code to send a JSON response with status 201 for resource creation.

Node.js

res.status([1]).json({ message: 'Created' });

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

A400

B500

C404

D201

Attempts:

3 left

💡 Hint

Common Mistakes

Using 400 means bad request, not creation success.

Using 404 means resource not found.

201 status code means a resource was successfully created.

3fill in blank

hard

Fix the error in the code to send a 500 Internal Server Error status.

Node.js

res.status([1]).send('Internal Server Error');

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

A500

B400

C200

D403

Attempts:

3 left

💡 Hint

Common Mistakes

Using 400 means client error, not server error.

Using 200 means success, not error.

500 is the correct status code for server errors.

4fill in blank

hard

Fill both blanks to send a 302 redirect with a Location header.

Node.js

res.status([1]).set('Location', [2]).send();

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

A302

B'/new-url'

C'/home'

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Using 404 status code with Location header is incorrect.

Not setting Location header causes redirect to fail.

302 is the status code for temporary redirect. The Location header tells where to redirect.

5fill in blank

hard

Fill all three blanks to send a 400 Bad Request with JSON error details.

Node.js

res.status([1]).json({ error: [2], message: [3] });

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

A400

B'BadRequest'

C'Invalid input data'

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 status means success, not error.

Not providing error details makes debugging harder.

400 status code means bad request. The JSON provides error type and message.