Request object properties in Node.js - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to access the HTTP method from the request object.

Node.js

const method = req.[1];

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

Amethod

Burl

Cbody

Dheaders

Attempts:

3 left

💡 Hint

Common Mistakes

Using req.url instead of req.method

Trying to access req.body for the method

Using req.headers which holds headers, not method

The method property of the request object holds the HTTP method (GET, POST, etc.) used by the client.

2fill in blank

medium

Complete the code to get the URL path from the request object.

Node.js

const path = req.[1];

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

Amethod

Bpath

Curl

Dquery

Attempts:

3 left

💡 Hint

Common Mistakes

Using req.path which may not exist in plain Node.js

Using req.method which is the HTTP method

Using req.query which holds parsed query parameters

The url property contains the full URL path and query string sent by the client.

3fill in blank

hard

Fix the error in accessing the request headers property.

Node.js

const headers = req.[1];

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

Aheader

Bheaders

Chead

DheaderList

Attempts:

3 left

💡 Hint

Common Mistakes

Using singular 'header' instead of 'headers'

Trying to access 'head' or 'headerList' which do not exist

The correct property name is headers, which holds all HTTP headers as an object.

4fill in blank

hard

Fill both blanks to extract the query string parameters from the request URL.

Node.js

const url = require('url');
const queryObject = url.[1](req.[2], true).query;

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

Aparse

Burl

Cmethod

Dheaders

Attempts:

3 left

💡 Hint

Common Mistakes

Using req.method instead of req.url

Using url.method or url.headers which do not exist

Use url.parse to parse the request URL string and get the query parameters object.

5fill in blank

hard

Fill all three blanks to read JSON data sent in the request body using streams.

Node.js

let body = '';
req.on('[1]', chunk => {
  body += chunk.toString();
});
req.on('[2]', () => {
  const data = JSON.[3](body);
  console.log(data);
});

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

Adata

Bend

Cparse

Dstringify

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'end' event to collect chunks instead of 'data'

Using JSON.stringify instead of JSON.parse

Mixing event names or JSON methods

Listen for the 'data' event to collect chunks, 'end' event to finish, then parse the JSON string.