Response handling in NestJS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to send a JSON response with NestJS.

NestJS

return res.[1]({ message: 'Hello World' });

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

Ajson

BsendFile

Credirect

Drender

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.sendFile instead of res.json

Using res.redirect which sends a redirect response

Using res.render which renders a template

Use res.json() to send a JSON response in NestJS.

2fill in blank

medium

Complete the code to set the HTTP status code to 201 before sending the response.

NestJS

return res.[1](201).json({ success: true });

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

Astatus

Bsend

Ccode

DsetStatus

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.send to set status code

Using res.code which does not exist

Using res.setStatus which is not a method

Use res.status() to set the HTTP status code in NestJS.

3fill in blank

hard

Fix the error in sending a plain text response with status 200.

NestJS

return res.[1](200).[2]('Success');

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

AsendStatus

Bstatus

Csend

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.sendStatus which sends status and ends response immediately

Using res.json to send plain text

Not chaining status and send properly

Use res.status(200).send('Success') to set status and send plain text.

4fill in blank

hard

Fill both blanks to set a custom header and send a JSON response.

NestJS

return res.[1]('X-Custom-Header', 'NestJS').[2]({ data: 'value' });

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

AsetHeader

Bjson

Csend

Dheader

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.setHeader which is not available on response object in NestJS

Using res.send instead of res.json for JSON data

Setting headers after sending response

Use res.header() to set headers and res.json() to send JSON.

5fill in blank

hard

Fill all three blanks to send a file with status 200 and a custom content type.

NestJS

return res.[1](200).[2]('file.pdf').[3]('application/pdf');

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

Astatus

BsendFile

Ctype

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Using res.json to send files

Setting content type after sending response

Not chaining methods properly

Use res.status() to set status, res.sendFile() to send file, and res.type() to set content type.