Rate limiting for protection in Flask - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Flask-Limiter extension.

Flask

from flask_limiter import [1]

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

ALimiter

BRateLimiter

CLimiterExtension

DFlaskLimiter

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect class names like RateLimiter or FlaskLimiter.

Trying to import from wrong modules.

The Flask-Limiter extension is imported using Limiter.

2fill in blank

medium

Complete the code to create a Limiter instance with default limits.

Flask

limiter = Limiter(app, default_limits=["[1] per minute"])

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

A10

B5

C100

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Using too high a limit like 100 which is less protective.

Using invalid strings without 'per minute'.

The example uses a default limit of 5 per minute to protect the app.

3fill in blank

hard

Fix the error in the decorator to apply rate limiting on the route.

Flask

@limiter.[1]("3 per minute")
def home():
    return "Welcome!"

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

Alimit_rate

Brate_limit

Climit

Dlimiter

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect decorator names like rate_limit or limiter.

Misspelling the method name.

The correct decorator method is limit to set rate limits on routes.

4fill in blank

hard

Fill both blanks to create a rate limit key function using IP address.

Flask

def [2]():
    return request.[1]

limiter = Limiter(app, key_func=[2])

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

Aremote_addr

Bip_address

Cclient_ip

Duser_ip

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect attribute names like ip_address or client_ip.

Passing wrong function names to key_func.

The IP address is accessed via request.remote_addr, and the key function is set to remote_addr.

5fill in blank

hard

Fill all three blanks to create a custom error message for rate limit exceeded.

Flask

from flask import Flask, jsonify

@limiter.[1]("2 per minute")
def limited_route():
    return jsonify({"message": "[2]"}), [3]

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

Alimit

BToo many requests, slow down!

C429

Drate_limit

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong decorator names like rate_limit.

Using incorrect status codes like 400 or 500.

Not providing a clear error message.

The decorator is limit, the message informs the user, and HTTP status code 429 means too many requests.