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A guide on how to create custom API views in Django Rest Framework, focusing on returning images from two connected apps.
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This video is based on the question https://stackoverflow.com/q/63590978/ asked by the user 'martin' ( https://stackoverflow.com/u/12032502/ ) and on the answer https://stackoverflow.com/a/63592028/ provided by the user 'Roham' ( https://stackoverflow.com/u/13155572/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Creating Custom API Views in Django Rest Framework

In modern web development, creating APIs is crucial for connecting different components of applications, especially when working with frameworks like Django. Understanding how to create custom API views allows developers to tailor responses to their specific needs. This post will walk you through the process of creating custom API views in Django Rest Framework, with a focus on returning specific fields from your models, such as images across different apps.

The Problem

You have a Django project with two apps, common and destinations, and you need to create custom API views that return specific data. In particular, you aim to return the images of a destination and its related country when hitting a specific endpoint.

The current models in your app include:

A Country model in the common app.

A Destination model in the destinations app that relates to the Country model.

Your goal is to create a new view that allows you to fetch the destination image and the country image based on a specific code, ideally through a custom API endpoint.

The Solution

To achieve this, we can create an additional serializer that will format the data exactly how we want it. The following steps will guide you through implementing this solution.

Step 1: Create an Extra Serializer

First, we need to define a new serializer that will handle the specific data we want to return. This includes the destination image and the country image.

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

Step 2: Create the Custom API View

Next, we need to implement the view that will use this serializer to return the required data. The following is an example view that responds to requests for the destination images:

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

Step 3: Define the URL Conf

Make sure to add the relevant URL pattern in your app’s urls.py, so that it can route requests to your new view:

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

Testing the Endpoint

You can now test your custom API endpoint. If you send a GET request to /api/destination/PMI/image, you should receive a response similar to this:

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

Conclusion

Creating custom API views in Django Rest Framework is simpler than it might initially seem. By defining a custom serializer to structure your data and a view to fetch and format it, you can easily tailor responses to fit your application's needs. Don't hesitate to extend this approach for more complex scenarios as your application grows!

With this guide, you should be well-equipped to implement custom API views in Django Rest Framework. Happy coding!