implementing Django REST framework serialization of nested objects in Python 3.8
I'm deploying to production and I keep running into I've been struggling with this for a few days now and could really use some help. I'm working on a personal project and I'm currently working on a Django project using Django Rest Framework (DRF) 3.12 and Python 3.8, and I'm working with difficulties with serializing nested objects. I have a `Book` model that has a foreign key relationship to an `Author` model. When I try to serialize the `Book` instances, I want to include the `Author` details as a nested object in the response. However, I'm working with a `ValidationError` when trying to create a new book with the author data included in the request payload. Here’s what my models look like: ```python class Author(models.Model): name = models.CharField(max_length=100) email = models.EmailField() class Book(models.Model): title = models.CharField(max_length=200) author = models.ForeignKey(Author, on_delete=models.CASCADE) ``` And here’s the serializer I am using: ```python class AuthorSerializer(serializers.ModelSerializer): class Meta: model = Author fields = ['id', 'name', 'email'] class BookSerializer(serializers.ModelSerializer): author = AuthorSerializer() class Meta: model = Book fields = ['id', 'title', 'author'] ``` When I send a POST request with the following payload: ```json { "title": "New Book", "author": { "name": "John Doe", "email": "john@example.com" } } ``` I receive the following behavior message: ``` ValidationError at /books/ {'author': [ErrorDetail(string='This field is required.', code='required')]} ``` I’ve tried debugging the serializer and checking if the nested author data is being passed correctly, but I am unsure of how to create the author instance effectively during the book creation. What is the best practice for handling nested serializers for creating related objects in DRF? How should I modify my serializer or views to handle this scenario properly? I'm working on a application that needs to handle this. I'd really appreciate any guidance on this. Any ideas what could be causing this? This is part of a larger CLI tool I'm building. Hoping someone can shed some light on this. I'm open to any suggestions.