Is it possible to have multiple ContentNegotiation, separate per module?

Ktor Version

1.1.2

When trying to install ContentNegotiation inside additional (not main) module:

install(ContentNegotiation) {
        register(ContentType.Application.Xml, MyContentConverter()) {

        }
    }

I have this error:

Caused by: io.ktor.application.DuplicateApplicationFeatureException: Conflicting application feature is already installed with the same key as `ContentNegotiation`

however I would like that part of the routes could by default use different content negotiation. some API require to have XML.

The per route can be defined with help of contentType:

routing {
        contentType(ContentType.Application.Xml){
            get("/myxml/api"){
                
            }
            
        }

Is there way to have that configured per module, how the ContentNegotiation happens?

That would help to have modules as separate dependencies to be reused on different Ktor applications.

[e5l]

Hi, since 2.0.0 it’s possible to install different ContentNegotiation plugins for separate routes

[oleg-larshin]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.