Скачать или смотреть Creating Custom Nested JSON Output with Django Rest Framework

Learn how to structure your Django REST Framework serializers to achieve custom nested JSON output that fits your needs.
---
This video is based on the question https://stackoverflow.com/q/68480740/ asked by the user 'Ankzious' ( https://stackoverflow.com/u/12539512/ ) and on the answer https://stackoverflow.com/a/68482146/ provided by the user 'Klim Bim' ( https://stackoverflow.com/u/6897919/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Django Restframework with nested json and custom key

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Creating Custom Nested JSON Output with Django Rest Framework

When working on a Django application, you may sometimes face challenges in formatting your data the way you want it. One common issue developers encounter is generating a nested JSON response with custom keys using the Django Rest Framework (DRF).

In this guide, we'll address this problem and provide a clear solution to customize your JSON output as per your requirements.

The Problem

Imagine you have two interrelated models: Tags and TagItem. You want to serialize them in a way that the output uses the section field of the Tags model as a key in your JSON response. However, you may find that the default serialization doesn't support this format, leading to JSON outputs that look like this:

[[See Video to Reveal this Text or Code Snippet]]

The desired JSON structure should instead resemble the following:

[[See Video to Reveal this Text or Code Snippet]]

The Solution

To achieve the desired output format, we can customize the representation of our serialized data. Below, we'll walk through the necessary steps to implement this.

Step 1: Define Your Models

You likely already have your models defined as follows:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Customize Serializers

Next, we need to customize the serializers to override the default behavior using the to_representation() method.

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Implement the View

Now, we will create a view to return the serialized data in the format we desire.

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Testing the Output

Once you have implemented the above code, make sure to test the endpoint associated with the TagModelView. If everything is configured correctly, the output should now mirror the desired format, using the section field of the Tags model as the key.

Final Thoughts

Customizing JSON output in Django Rest Framework might seem daunting, but using the to_representation() method of serializers simplifies the process significantly. By following the steps outlined above, you can achieve a beautifully structured JSON response tailored to your application's needs.

Take these concepts and experiment further within your Django applications. Happy coding!