Trusted host middleware in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the TrustedHostMiddleware from FastAPI.

FastAPI

from fastapi.middleware.[1] import TrustedHostMiddleware

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

Atrusted_host

Btrustedhostmiddleware

Ctrustedhost

Dtrustedhost_middleware

Attempts:

3 left

💡 Hint

Common Mistakes

Using camel case or concatenated words in import path.

The correct import path uses underscores: trusted_host.

2fill in blank

medium

Complete the code to add TrustedHostMiddleware to the FastAPI app with allowed hosts.

FastAPI

app.add_middleware(TrustedHostMiddleware, allowed_hosts=[1])

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

A['example.com']

B['example.com', 'localhost']

C['*']

D['example.com', 'localhost', '*']

Attempts:

3 left

💡 Hint

Common Mistakes

Using '*' which disables host checking.

Allowed hosts should be a list of specific hostnames without wildcards for security.

3fill in blank

hard

Fix the error in the middleware setup by completing the code correctly.

FastAPI

app = FastAPI()
app.add_middleware([1], allowed_hosts=['myapp.com'])

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

Atrusted_host_middleware

BtrustedHostMiddleware

CTrustedHost

DTrustedHostMiddleware

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase or incorrect casing for middleware class.

The middleware class name is TrustedHostMiddleware with exact casing.

4fill in blank

hard

Fill both blanks to create a FastAPI app and add TrustedHostMiddleware with allowed hosts.

FastAPI

app = [1]()
app.add_middleware([2], allowed_hosts=['api.example.com'])

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

AFastAPI

Btrusted_host_middleware

CTrustedHostMiddleware

DFastApi

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong casing for FastAPI or middleware class.

The app is created with FastAPI() and middleware class is TrustedHostMiddleware.

5fill in blank

hard

Fill all three blanks to define a FastAPI app, add TrustedHostMiddleware, and specify allowed hosts.

FastAPI

from fastapi import [1]
from fastapi.middleware.trusted_host import [2]

app = [3]()
app.add_middleware(TrustedHostMiddleware, allowed_hosts=['localhost', 'mydomain.com'])

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

AFastAPI

BTrustedHostMiddleware

CFastApi

DtrustedHostMiddleware

Attempts:

3 left

💡 Hint

Common Mistakes

Incorrect casing in imports or app creation.

Import FastAPI and TrustedHostMiddleware with correct casing, then create app with FastAPI().