Returning JSON with JsonResponse in Django - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is JsonResponse in Django?

<p><code>JsonResponse</code> is a class in Django that helps you send JSON data back to the browser easily. It formats your data as JSON and sets the right content type.</p>

beginner

How do you import <code>JsonResponse</code> in a Django view?

<p>You import it with: <code>from django.http import JsonResponse</code></p>

beginner

What type of data can you pass directly to JsonResponse?

You can pass a Python dictionary directly. For lists (including lists of dictionaries) or other non-dictionary types, use safe=False. Django will convert it to JSON automatically.

intermediate

Why is JsonResponse better than using HttpResponse for JSON data?

JsonResponse automatically sets the content type to application/json and converts your data to JSON. HttpResponse requires you to do this manually.

intermediate

How do you make JsonResponse accept non-dictionary data like a list?

Use the parameter safe=False when creating the JsonResponse. This tells Django it's okay to send data types other than dictionaries.

What does JsonResponse automatically set in the HTTP response?

A Status code to 404

B Redirect URL

C Content-Type to text/html

D Content-Type to application/json

JsonResponse sets the Content-Type header to application/json so browsers know the response is JSON.

Which import is needed to use JsonResponse in Django?

A from django.http import JsonResponse

B from django.shortcuts import JsonResponse

C import JsonResponse from django.views

D from django.urls import JsonResponse

The correct import is from django.http import JsonResponse.

What happens if you pass a list to JsonResponse without safe=False?

A It raises a TypeError

B It converts the list to a string

C It works fine without error

D It returns an empty JSON object

By default, JsonResponse expects a dictionary. Passing a list without safe=False causes a TypeError.

Which of these is a correct way to return JSON data in a Django view?

A return JsonResponse('Alice')

B return JsonResponse({'name': 'Alice'})

C return JsonResponse(['Alice'])

D return JsonResponse(123)

Passing a dictionary like {'name': 'Alice'} is correct. Lists or other types require safe=False.

How do you allow JsonResponse to send a list as JSON?

A Wrap list in a dictionary

B Convert list to string first

C Use <code>safe=False</code> parameter

D Use <code>HttpResponse</code> instead

Setting safe=False tells Django it's safe to send non-dictionary data like lists.

Explain how to return JSON data from a Django view using JsonResponse.

Think about the import, data format, and the safe parameter.

What are the benefits of using JsonResponse over HttpResponse for JSON data in Django?

Consider what JsonResponse does automatically for you.