Setting and reading cookies in Flask - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set a cookie named 'username' with value 'Alice'.

Flask

from flask import Flask, make_response
app = Flask(__name__)

@app.route('/')
def index():
    resp = make_response('Setting cookie')
    resp.set_cookie('[1]', 'Alice')
    return resp

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

Aname

Buser

Cusername

Duser_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong cookie name like 'user' or 'name' instead of 'username'.

Forgetting to call set_cookie on the response object.

The cookie name is 'username', so you must pass 'username' as the first argument to set_cookie.

2fill in blank

medium

Complete the code to read the cookie named 'username' from the request.

Flask

from flask import Flask, request
app = Flask(__name__)

@app.route('/get')
def get_cookie():
    user = request.cookies.get('[1]')
    return f'User is {user}'

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

Auser

Busername

Cname

Dsession

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong cookie name like 'user' or 'session'.

Trying to access cookies directly without using request.cookies.get().

To read the cookie named 'username', use request.cookies.get('username').

3fill in blank

hard

Fix the error in the code to set a cookie with expiration of 1 day.

Flask

from flask import Flask, make_response
from datetime import timedelta
app = Flask(__name__)

@app.route('/set')
def set_cookie():
    resp = make_response('Cookie set')
    resp.set_cookie('token', 'abc123', max_age=[1])
    return resp

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

A86400

Btimedelta(days=1)

C24*60*60*1000

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a timedelta object instead of seconds.

Using milliseconds instead of seconds.

Passing None which disables expiration.

The max_age parameter expects seconds as an integer. 1 day = 86400 seconds.

4fill in blank

hard

Fill both blanks to set a cookie named 'sessionid' with value 'xyz' that expires in 2 hours.

Flask

from flask import Flask, make_response
app = Flask(__name__)

@app.route('/session')
def session_cookie():
    resp = make_response('Session cookie set')
    resp.set_cookie('[1]', '[2]', max_age=7200)
    return resp

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

Asessionid

Buserid

Cxyz

Dabc

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping cookie name and value.

Using wrong cookie names or values.

The cookie name is 'sessionid' and the value is 'xyz'. The max_age is 7200 seconds (2 hours).

5fill in blank

hard

Fill all three blanks to read a cookie named 'auth' and return 'Logged in' if it exists, else 'Not logged in'.

Flask

from flask import Flask, request
app = Flask(__name__)

@app.route('/auth')
def check_auth():
    token = request.cookies.get('[1]')
    if token [2] None:
        return '[3]'
    else:
        return 'Not logged in'

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

Aauth

B!=

CLogged in

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong cookie name.

Using wrong comparison operator.

Returning wrong strings.

We get the cookie named 'auth'. If it is not None, return 'Logged in'. Otherwise, return 'Not logged in'.