How can I handle errors in Django serializers?

How can I handle errors in Django serializers?

You can handle errors in Django serializers by overriding the validate method or using the ValidationError class.

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

Sure! You can override the validate method in your serializer like this:

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

    def validate_name(self, value):
        if not value.isalpha():
            raise serializers.ValidationError('Name must only contain letters.')
        return value

What about handling multiple errors at once?

You can raise a ValidationError with a dictionary of errors. For example:

raise serializers.ValidationError({'name': 'Invalid name', 'age': 'Invalid age'})

Is there a way to customize the error messages?

Yes, you can customize error messages by passing the error_messages argument in your field definition.