Functions with HTTP triggers in Azure - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an HTTP trigger in an Azure Function.

Azure

def main(req: func.HttpRequest) -> func.HttpResponse:
    if req.method == [1]:
        return func.HttpResponse("Hello, world!")

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

A"POST"

B"PUT"

C"DELETE"

D"GET"

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST instead of GET for simple retrieval.

The HTTP trigger checks if the request method is "GET" to respond accordingly.

2fill in blank

medium

Complete the code to return a JSON response from the Azure Function.

Azure

import json

def main(req: func.HttpRequest) -> func.HttpResponse:
    data = {"message": "Hello"}
    return func.HttpResponse(json.dumps([1]), mimetype="application/json")

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

Adata

Breq

Cfunc

Djson

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the request object instead of data.

The data dictionary is converted to JSON string to send as response.

3fill in blank

hard

Fix the error in the function signature for an HTTP triggered Azure Function.

Azure

def main([1]) -> func.HttpResponse:
    return func.HttpResponse("OK")

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

Areq

Breq: func.HttpRequest

Crequest

Drequest: HttpRequest

Attempts:

3 left

💡 Hint

Common Mistakes

Missing type annotation or wrong parameter name.

The function parameter must be typed as func.HttpRequest for HTTP triggers.

4fill in blank

hard

Fill both blanks to correctly read a query parameter and return it in the response.

Azure

def main(req: func.HttpRequest) -> func.HttpResponse:
    name = req.params.get([1])
    if not name:
        return func.HttpResponse("Name not found", status_code=[2])
    return func.HttpResponse(f"Hello, {name}!")

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

A"name"

B400

C404

D"user"

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong parameter key or incorrect status code.

The function looks for the 'name' query parameter and returns 400 if missing.

5fill in blank

hard

Fill all three blanks to parse JSON body and return a field value in the response.

Azure

import json

def main(req: func.HttpRequest) -> func.HttpResponse:
    try:
        req_body = req.get_json()
    except ValueError:
        return func.HttpResponse("Invalid JSON", status_code=[1])
    name = req_body.get([2])
    if not name:
        return func.HttpResponse("Missing name", status_code=[3])
    return func.HttpResponse(f"Hello, {name}!")

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

A400

B"name"

C422

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong status codes or keys for JSON parsing.

400 is used for invalid JSON, 'name' is the key to get, and 404 for missing name.