Is there a way to create a

JSONTransformingSerializer

to replace all keys with a

snake_case

instead of a

camelCase

that works for any data class ?

Yes

But how do I make it to work for any class ? So I don't have to create a serializer for every classes I have ?

Ohhhhh. Yeah that's not possible yet. There's an open issue for it though.

Ah :( So I'll stick with having 100

@SerialName

for my classes x)