Parsing request body (JSON and form data) in Node.js - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Express framework.

Node.js

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

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

Aexpress

Bhttp

Cpath

Dfs

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'http' instead of 'express' to import the framework.

Forgetting to put the module name in quotes.

The Express framework is imported by requiring the 'express' module.

2fill in blank

medium

Complete the code to create a new Express application instance.

Node.js

const app = [1]();

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

Ahttp

Bexpress

Cserver

Drouter

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to call 'http()' instead of 'express()'.

Using a variable that was not defined.

Calling the imported 'express' function creates a new Express app instance.

3fill in blank

hard

Fix the error in the middleware setup to parse JSON request bodies.

Node.js

app.use(express.[1]());

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

Astatic

Burlencoded

Cjson

Drouter

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'urlencoded' middleware for JSON data.

Forgetting to call the middleware as a function.

To parse JSON bodies, use the 'json' middleware from Express.

4fill in blank

hard

Fill both blanks to parse URL-encoded form data with extended option set to false.

Node.js

app.use(express.[1]({ extended: [2] }));

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

Aurlencoded

Btrue

Cfalse

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Setting 'extended' to true when simple parsing is needed.

Using 'json' middleware for form data.

Use 'urlencoded' middleware with the option 'extended: false' to parse form data simply.

5fill in blank

hard

Fill all three blanks to create a POST route that reads JSON data from the request body and sends back a message with the user's name.

Node.js

app.post('/hello', (req, res) => {
  const name = req.body.[1];
  res.send(`Hello, ${ [2] }! Your ID is ${req.body.[3].`);
});

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

Ausername

Bname

Cid

DuserId

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'username' instead of 'name' for the property.

Forgetting to access 'req.body' before the property.

Mixing up 'id' and 'userId' property names.

The code reads the 'name' property from the JSON body and sends a greeting including the 'id'.