How can I implement data validation in serializers?

How can I implement data validation in serializers?

You can implement data validation in serializers by using built-in validation methods or custom validation functions.

Can you give me an example of a custom validation function?

Sure! You can create a custom validation function by defining a method in your serializer class that raises a validation error if the data doesn't meet your criteria.

What are some common validation errors I should handle?

Common validation errors include required fields, incorrect data types, and values that don't meet specific criteria like length or format.

How do I test my serializers for validation?

You can test your serializers by writing unit tests that check various input scenarios, ensuring that valid data passes and invalid data raises errors.