HTTP methods (GET, POST, PUT, DELETE) in Flask - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a Flask route that responds to GET requests.

Flask

from flask import Flask
app = Flask(__name__)

@app.route('/hello', methods=[[1]])
def hello():
    return 'Hello, world!'

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

A"PUT"

B"POST"

C"GET"

D"DELETE"

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST instead of GET for a route meant to retrieve data.

Forgetting to put the method name in quotes.

The methods parameter specifies which HTTP methods the route accepts. To respond to GET requests, use "GET".

2fill in blank

medium

Complete the code to handle POST requests in a Flask route.

Flask

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

@app.route('/submit', methods=[[1]])
def submit():
    data = request.form.get('data')
    return f'Received: {data}'

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

A"GET"

B"POST"

C"PUT"

D"DELETE"

Attempts:

3 left

💡 Hint

Common Mistakes

Using GET instead of POST when expecting form data.

Not specifying the POST method in the route.

POST requests are used to send data to the server, so the route must accept "POST" to handle form data.

3fill in blank

hard

Fix the error in the Flask route to allow updating data with PUT method.

Flask

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

@app.route('/update', methods=[[1]])
def update():
    new_data = request.json.get('new_data')
    return f'Updated to: {new_data}'

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

A"PUT"

B"DELETE"

C"GET"

D"POST"

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST or GET instead of PUT for update operations.

Not including the PUT method in the route's methods list.

The PUT method is used to update existing data, so the route must accept "PUT" to handle update requests.

4fill in blank

hard

Fill in the blank to create a Flask route that deletes a resource using DELETE method and returns a confirmation message.

Flask

from flask import Flask
app = Flask(__name__)

@app.route('/delete-item', methods=[[1]])
def delete_item():
    # code to delete item
    return 'Item deleted!'

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

A"DELETE"

B"POST"

C"GET"

D"PUT"

Attempts:

3 left

💡 Hint

Common Mistakes

Using GET or POST instead of DELETE for deletion.

Returning no confirmation message.

The DELETE method is used to remove resources, so the route must accept "DELETE". The return message can be any string; here, we use a simple confirmation message.

5fill in blank

hard

Fill all three blanks to create a Flask route that supports GET and POST methods and returns different messages based on the request method.

Flask

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

@app.route('/data', methods=[[1], [2]])
def data():
    if request.method == [3]:
        return 'This is a GET request'
    else:
        return 'This is a POST request'

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

A"GET"

B"POST"

D"PUT"

Attempts:

3 left

💡 Hint

Common Mistakes

Not including both GET and POST in the methods list.

Comparing request.method to the wrong string.

The route must accept both GET and POST methods. The request.method is compared to "GET" to decide the response.