Serializer for class ‘ObjectId’ is not found when pass a data object in a response in Ktor server

Hi everyone,
As described in the title, whether it is a kotlin-driver’s bug or I missed somewhere in my code?

entity762×606 49.2 KB

response1472×606 89.3 KB

error1938×792 224 KB

I solved my problem. MongoDB Driver is great. You have a lot of customizations to play around with it.

I overrode ObjectId field with Custom Serializers as the attached picture. You can follow document link to get full customization for other types.

Screenshot 2024-04-05 at 18.28.031006×598 84.9 KB

The problem here is kotlinx.serialization doesn’t know BSON types. So, you need to transform these types to JSON types. This is my Custom serializer for ObjectId, as you wish.

Screenshot 2024-09-19 at 18.55.241650×866 107 KB