HTTPS and SSL certificates in Express - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the HTTPS module in Node.js.

Express

const https = require('[1]');

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

Aexpress

Bhttps

Chttp

Dfs

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'http' instead of 'https'

Using 'express' which is a framework, not the HTTPS module

The HTTPS module is imported using require('https') to create secure servers.

2fill in blank

medium

Complete the code to read the SSL private key file using the fs module.

Express

const privateKey = fs.readFileSync('[1]', 'utf8');

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

Apackage.json

Bserver.cert

Cindex.js

Dserver.key

Attempts:

3 left

💡 Hint

Common Mistakes

Using the certificate file instead of the key file

Using unrelated files like 'index.js'

The private key file usually has a .key extension, such as server.key.

3fill in blank

hard

Fix the error in creating the HTTPS server with Express and SSL options.

Express

const server = https.createServer({ [1] }, app);

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Akey: privateKey, cert: certificate

BprivateKey, certificate

Ckey = privateKey, cert = certificate

Doptions

Attempts:

3 left

💡 Hint

Common Mistakes

Passing variables without keys

Using assignment inside object literal incorrectly

The HTTPS server options must be an object with key and cert properties assigned to the private key and certificate.

4fill in blank

hard

Fill both blanks to create SSL options object with private key and certificate.

Express

const sslOptions = { [1]: privateKey, [2]: certificate };

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

Akey

Bcert

CprivateKey

Dcertificate

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names as keys

Swapping 'key' and 'cert'

The SSL options object requires the properties key and cert to hold the private key and certificate respectively.

5fill in blank

hard

Fill both blanks to start the HTTPS server listening on port 443 with a callback.

Express

server.listen([1], () => { console.log('Server running on port [2]'); });

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

A3000

B443

C'443'

D8080

Attempts:

3 left

💡 Hint

Common Mistakes

Using port 3000 or 8080 which are for HTTP

Passing port as a string

Port 443 is the standard port for HTTPS. The port number should be a number, not a string.