JWT token creation in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the JWT encode function from the correct library.

FastAPI

from jose import [1]

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

Adecode

Bencode

Cjwt

Dtoken

Attempts:

3 left

💡 Hint

Common Mistakes

Importing encode directly instead of jwt module

Using decode instead of jwt

Importing from wrong library

The jwt module from jose provides the encode function to create JWT tokens.

2fill in blank

medium

Complete the code to define the secret key used for signing the JWT token.

FastAPI

SECRET_KEY = '[1]'

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

Ajwtsecret

Bmysecretkey123

C123456

Dtokenkey

Attempts:

3 left

💡 Hint

Common Mistakes

Using an integer instead of a string

Leaving the secret key empty

Using a too simple or insecure key

The secret key is a string used to sign the JWT token securely. Here, 'jwtsecret' is used as an example.

3fill in blank

hard

Fix the error in the code to correctly encode the JWT token with payload and secret key.

FastAPI

token = jwt.[1](payload, SECRET_KEY, algorithm='HS256')

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

Aencode

Bdecode

Csign

Dcreate

Attempts:

3 left

💡 Hint

Common Mistakes

Using decode instead of encode

Using a non-existent function like sign or create

Misspelling the function name

The encode function creates a JWT token from the payload and secret key.

4fill in blank

hard

Fill both blanks to create a payload dictionary with username and expiration time.

FastAPI

payload = {'sub': [1], 'exp': [2]

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

A'user123'

Bdatetime.utcnow() + timedelta(minutes=30)

C'admin'

Dtime.time() + 1800

Attempts:

3 left

💡 Hint

Common Mistakes

Using time.time() instead of datetime for expiration

Putting username without quotes

Using wrong keys in the payload

The payload uses 'sub' for the username and exp for expiration time set 30 minutes from now.

5fill in blank

hard

Fill all three blanks to import needed modules and create a JWT token with expiration.

FastAPI

from datetime import [1], [2]

payload = {'sub': 'admin', 'exp': datetime.utcnow() + [3](minutes=15)}
token = jwt.encode(payload, SECRET_KEY, algorithm='HS256')

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

Adatetime

Btimedelta

Dtime

Attempts:

3 left

💡 Hint

Common Mistakes

Importing time instead of timedelta

Using timedelta without import

Confusing datetime and timedelta order

We import datetime and timedelta from datetime module. The expiration uses timedelta(minutes=15).