CRUD operations in Flask - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Flask class from the flask module.

Flask

from flask import [1]
app = Flask(__name__)

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

AFlask

Bjsonify

Crender_template

DRequest

Attempts:

3 left

💡 Hint

Common Mistakes

Importing Request instead of Flask

Using lowercase flask instead of Flask

The Flask class is imported from the flask module to create the app instance.

2fill in blank

medium

Complete the code to define a route for the home page that returns 'Hello World!'.

Flask

@app.route('/')
def home():
    return [1]

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

A'Hello World!'

Bjsonify(message='Hello')

Crender_template('index.html')

D'Welcome'

Attempts:

3 left

💡 Hint

Common Mistakes

Returning a function call instead of a string

Forgetting quotes around the string

The route function returns the string 'Hello World!' to display on the home page.

3fill in blank

hard

Fix the error in the code to get JSON data from a POST request.

Flask

from flask import request

@app.route('/data', methods=['POST'])
def data():
    json_data = request.[1]
    return json_data

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

Ajsonify

Bget_json

Cjson

Ddata

Attempts:

3 left

💡 Hint

Common Mistakes

Calling get_json() on request.json which is not a method

Using jsonify instead of accessing request.json

The request object has a 'json' attribute that holds the parsed JSON data from the request body.

4fill in blank

hard

Fill both blanks to create a route that updates a user by ID using PUT method.

Flask

@app.route('/user/<int:id>', methods=[[1]])
def update_user(id):
    data = request.[2]
    # update logic here
    return 'User updated'

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

A'PUT'

B'POST'

Cjson

Dform

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST instead of PUT for update

Accessing request.form instead of request.json

The route must accept PUT requests, and the data is accessed from request.json for JSON payload.

5fill in blank

hard

Fill all three blanks to create a route that deletes a user by ID and returns JSON confirmation.

Flask

@app.route('/user/<int:id>', methods=[[1]])
def delete_user(id):
    # delete logic here
    return [2]({'message': 'User deleted', 'id': [3])

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

A'DELETE'

Bjsonify

Cid

D'GET'

Attempts:

3 left

💡 Hint

Common Mistakes

Using GET instead of DELETE

Returning plain dict instead of jsonify

Not including the id in the response

The route uses DELETE method, returns JSON using jsonify, and includes the user id in the response.