👀 Views: 0 💬 Answers: 1 📅 Created: 2025-09-12

django django-rest-framework serializers nested-serializers Python

I'm a bit lost with I've been banging my head against this for hours... Hey everyone, I'm running into an issue that's driving me crazy. Recently started working with a Django REST Framework project for a hackathon, and I've hit a roadblock with nested serializers. The goal is to create an API endpoint for creating user profiles that includes a nested serializer for addresses. My models are set up as follows: ```python class Address(models.Model): street = models.CharField(max_length=255) city = models.CharField(max_length=100) state = models.CharField(max_length=100) zip_code = models.CharField(max_length=10) class UserProfile(models.Model): username = models.CharField(max_length=150) email = models.EmailField() address = models.ForeignKey(Address, related_name='profiles', on_delete=models.CASCADE) ``` The serializer for the user profile looks like this: ```python class AddressSerializer(serializers.ModelSerializer): class Meta: model = Address fields = '__all__' class UserProfileSerializer(serializers.ModelSerializer): address = AddressSerializer() class Meta: model = UserProfile fields = ['username', 'email', 'address'] ``` When I try to create a user profile with an address, I'm running into issues where the address fields aren't being validated correctly, leading to a 400 Bad Request response. I've attempted overriding the `create` method in the `UserProfileSerializer` to handle the creation of the nested address object, but I keep receiving this error: `"The fields address must be a dictionary, but got [<Address: Address object (1)>]."` Here’s the code snippet for the overridden `create` method that I’ve written: ```python def create(self, validated_data): address_data = validated_data.pop('address') address = Address.objects.create(**address_data) user_profile = UserProfile.objects.create(address=address, **validated_data) return user_profile ``` Despite this, it seems that the serializer does not recognize the nested data. I’ve also explored adding `extra_kwargs` in the serializer’s `Meta` class to help with validation, but it hasn't resolved the core issue. Is there something I'm missing in how I'm setting up the nested serializer? Or could there be a configuration problem in my settings related to DRF's handling of nested objects? Any insights or advice on best practices for properly validating and saving nested serializers would be greatly appreciated! This is part of a larger CLI tool I'm building. What's the best practice here? How would you solve this? I'm using Python latest in this project. Has anyone dealt with something similar? How would you solve this?