How can I handle validation errors in Django REST Framework?

How can I handle validation errors in Django REST Framework?

In Django REST Framework, you can handle validation errors by overriding the validate method in your serializer. This allows you to customize the error messages and handle specific validation cases.

Can you give me an example of overriding the validate method?

Sure! Here's a simple example:

from rest_framework import serializers

class MySerializer(serializers.Serializer):
    name = serializers.CharField(max_length=100)

    def validate_name(self, value):
        if 'badword' in value:
            raise serializers.ValidationError('Inappropriate word used!')
        return value

What happens if the validation fails?

If validation fails, Django REST Framework will return a 400 Bad Request response with the error details in the response body.

How can I customize the error response?

You can customize the error response by overriding the create or update methods in your viewset and modifying the response data before returning it.