When async helps and when it does not in Django - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an async view in Django.

Django

from django.http import JsonResponse

async def my_view(request):
    data = await fetch_data()
    return JsonResponse({"result": data})

# The key word to define this view is [1]

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

Adef

Basync

Cawait

Dreturn

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'def' instead of 'async def' for async views.

In Django, to create an asynchronous view, you start the function with async.

2fill in blank

medium

Complete the code to await an asynchronous database call in Django.

Django

async def get_user(request):
    user = await User.objects.aget(id=1)
    return JsonResponse({"username": user.username})

# The method to asynchronously get a user is [1]

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

Aget

Bcreate

Cfilter

Daget

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'get' which is synchronous and blocks the event loop.

Use aget to asynchronously get a single object from the database in Django.

3fill in blank

hard

Fix the error in the async view that tries to use a synchronous ORM call.

Django

async def list_items(request):
    items = [1]
    return JsonResponse({"count": len(items)})

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

Aawait Item.objects.aall()

BItem.objects.all()

Cawait Item.objects.all()

DItem.objects.aall()

Attempts:

3 left

💡 Hint

Common Mistakes

Calling synchronous 'all()' inside async function without await.

To fetch all items asynchronously, use await Item.objects.aall(). The aall() method is async, and you must await it.

4fill in blank

hard

Fill both blanks to create an async view that fetches data and returns JSON.

Django

async def data_view(request):
    data = await [1].objects.[2]()
    return JsonResponse({"data": list(data)})

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

AProduct

Baall

Call

DUser

Attempts:

3 left

💡 Hint

Common Mistakes

Using synchronous 'all()' in async views.

Use the model Product and the async queryset method aall() to fetch data asynchronously.

5fill in blank

hard

Fill all three blanks to create an async view that filters users and returns their names.

Django

async def active_users(request):
    users = await [1].objects.[2](is_active=True).[3]()
    return JsonResponse({"users": [user.username for user in users]})

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

AUser

Bfilter

Caall

Dget

Attempts:

3 left

💡 Hint

Common Mistakes

Using synchronous methods in async views.

Use the User model, filter to select active users, and aall() to fetch asynchronously.