Why APIs matter in Flask - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a basic Flask API endpoint that returns a greeting message.

Flask

from flask import Flask
app = Flask(__name__)

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

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

A"Hello, API!"

Bprint("Hello, API!")

Creturn Hello, API!

Dresponse("Hello, API!")

Attempts:

3 left

💡 Hint

Common Mistakes

Using print instead of return

Not using quotes around the string

The function must return a string as the response. Using quotes around the string is required.

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

Bfrom flask

Cimport

Dinclude

Attempts:

3 left

💡 Hint

Common Mistakes

Using only 'import flask'

Using 'include' which is not Python syntax

To use Flask, you import the Flask class from the flask module using 'from flask import Flask'.

3fill in blank

hard

Fix the error in the route decorator to correctly define the API endpoint.

Flask

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

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

Agreet

B/greet

C'/greet'

D"greet"

Attempts:

3 left

💡 Hint

Common Mistakes

Missing quotes around the path

Not starting the path with a slash

The route path must be a string with quotes, starting with a slash.

4fill in blank

hard

Fill both blanks to create a JSON response from the API using Flask's jsonify.

Flask

from flask import Flask, [1]

app = Flask(__name__)

@app.route('/data')
def data():
    return [2]({'message': 'Hello, JSON!'})

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

Ajsonify

Bjson

Cmake_response

DResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Importing json instead of jsonify

Using make_response without jsonify

Flask's jsonify function is imported and used to return JSON responses easily.

5fill in blank

hard

Fill all three blanks to create a Flask API that accepts a POST request and returns the posted JSON data.

Flask

from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/postdata', methods=[[1]])
def post_data():
    data = request.[2]
    return jsonify([3])

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

A"POST"

Bjson

Cdata

DGET

Attempts:

3 left

💡 Hint

Common Mistakes

Using GET instead of POST

Accessing request.data instead of request.json

Returning raw data without jsonify

The route must allow POST method, access JSON data from request.json, and return it with jsonify.