REST API for IoT device in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Flask library needed to create a REST API.

Raspberry Pi

from [1] import Flask

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

Arequests

BFlask

Cflask

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Flask' instead of 'flask' as the module name.

We import Flask from the flask module to create the REST API.

2fill in blank

medium

Complete the code to create a Flask app instance named 'app'.

Raspberry Pi

app = [1](__name__)

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

Aflask

BFlask

CApp

Dapplication

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'flask' instead of 'Flask'.

The Flask app is created by calling Flask(__name__).

3fill in blank

hard

Fix the error in the route decorator to handle GET requests at '/status'.

Raspberry Pi

@app.route('/status', methods=[[1]])

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 'POST' or other HTTP methods instead of 'GET'.

The route should accept GET requests, so the method is 'GET'.

4fill in blank

hard

Fill both blanks to return a JSON response with device status and HTTP status code 200.

Raspberry Pi

return [1]({'status': 'online'}), [2]

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

Ajsonify

B200

Cjson

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Returning plain dict without jsonify.

Using wrong status code like 404.

Use jsonify to create a JSON response and return HTTP status code 200 for success.

5fill in blank

hard

Fill all three blanks to run the Flask app on host '0.0.0.0' and port 5000 with debug mode on.

Raspberry Pi

if __name__ == '__main__':
    app.run(host=[1], port=[2], debug=[3])

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

A'127.0.0.1'

B5000

CTrue

D'0.0.0.0'

Attempts:

3 left

💡 Hint

Common Mistakes

Using '127.0.0.1' limits access to localhost only.

Setting debug to False disables helpful error messages.

To make the app accessible on the local network, use host '0.0.0.0', port 5000, and enable debug mode with True.