Flask route as API endpoint - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a Flask route that returns 'Hello World!'.

Flask

from flask import Flask
app = Flask(__name__)

@app.route([1])
def hello():
    return 'Hello World!'

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

A"/world"

B"hello"

C"/hello"

D"world"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the leading slash '/' in the route path.

Not using quotes around the route path.

The route decorator needs the URL path starting with a slash, so "/hello" is correct.

2fill in blank

medium

Complete the code to import the Flask class correctly.

Flask

[1] Flask
app = Flask(__name__)

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

Afrom flask import

Bimport flask

Cfrom Flask import

Dimport

Attempts:

3 left

💡 Hint

Common Mistakes

Using uppercase 'Flask' in the module name.

Using 'import flask' instead of importing the Flask class.

The correct way to import the Flask class is from flask import Flask.

3fill in blank

hard

Fix the error in the route decorator to make it a valid Flask route.

Flask

@app.route([1])
def greet():
    return 'Hi there!'

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

A'greet'

B"greet"

C'/greet'

D"/greet"

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the leading slash '/' in the route path.

Using quotes incorrectly or missing them.

The route path must start with a slash and be a string, so '/greet' or "/greet" is correct.

4fill in blank

hard

Fill both blanks to create a Flask route that returns JSON data with a message.

Flask

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

@app.route([2])
def api():
    return [3]({"message": "Hello API"})

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

Ajsonify

B"/api"

D"api"

Attempts:

3 left

💡 Hint

Common Mistakes

Not importing jsonify.

Using route paths without a leading slash.

Returning a dictionary directly instead of using jsonify.

We import jsonify to return JSON data, use the route path "/api", and call jsonify to send the JSON response.

5fill in blank

hard

Fill all three blanks to create a Flask route that accepts a variable part in the URL and returns a greeting.

Flask

from flask import Flask
app = Flask(__name__)

@app.route([1])
def greet_user(name):
    return f"Hello, [2]!"

if __name__ == '__main__':
    app.run([3])

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

A"/user/<name>"

Bname

Cdebug=True

D"/user/name"

Attempts:

3 left

💡 Hint

Common Mistakes

Not using angle brackets for variable parts in the route.

Mismatching variable names between route and function.

Forgetting to enable debug mode in app.run.

The route uses a variable URL part <name>, the function uses the variable name, and app.run(debug=True) starts the server with debug mode.