Next is the role of the serializer’s context data. Our validation logic may sometimes need some extra information that must be taken from the database or derived from the view calling the serializer. One is the self or the serializer object, and the other is the field value received in the request payload. The validation method takes two parameters. Let us consider a case when we need to write some complex validation logic in the serializer. Using Serializer Context to Pass Data from View to Serializer Let’s explore Django REST Framework’s (DRF) lesser-known but useful features:ġ. If you need help in building the basics, here is the list of resources from official documentation. We will not be covering the basic concepts like serializers, API view/viewsets, generic views, permissions, etc. To understand the things discussed in the blog, the reader should have some prior experience of creating REST APIs using DRF.
#Custom serializer django rest framework code
This will help you to write cleaner code and improve API performance. Using Mixin to enable/disable pagination with Query Param.SerializerMethodField to add read-only derived data to the response.Solving slow queries by eliminating the N+1 query problem.Handling reverse relationships in serializers.Using serializer context to pass data from view to serializer.We will be covering the following use cases: In this blog post, I will share some of the features that I have used extensively while working with DRF.
Once we start creating production-level APIs, we must do a lot of customization that are highly supported by DRF. With minimal effort and time, you can start creating APIs that support authentication, authorization, pagination, sorting, etc. Django REST Framework (DRF) is a popular library choice when it comes to creating REST APIs with Django.
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