Hello! Who may help with information about how to implement a “response wrapper” pattern in the ktor-client. For example, has a model object User.

data User(name: String)

Response from server with a wrapper: Success response:

{
  "data": {
    "name": "Mark Watney"
  },
  "error": null
}

Business error respose:

{

 	"data": null
 	"error": { ... }
 }

In android I can use something like an interceptor or an adapter in library like Retrofit, but what about ktor-client?

Ktor has a JsonFeature that can parse the response for you

There is no problem with json, a problem with a common data/error response. Now I am seeing Feature in ktor-client, maybe it will help me intercept server response and unwrap it.

Why don't you do

@Serializable Wrapper<T>(val data: T, val error: Error)

N

I see. Upvoted.