in ktor plugin "Serialization" don't work with plug in "FreeMaker"

user_13922303 0
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ok I'm new to Ktor and I'm learning about it, one thing that I faced in this progress was this error : kotlinx.serialization.SerializationException: Serializer for class 'FreeMarkerContent' is not found. Mark the class as @Serializable or provide the serializer explicitly

and thats becouse in my code, Im using FreeMakcerContent and its trying to Serlialize it :

 get {
        call.respond(FreeMarkerContent("index.ftl", mapOf("articles" to articles)))
    }

how can I fix this problem?

ktor
2 Answers

I faced the same problem and I fixed it by installing FreeMarker plugin before installing ContentNegotiation plugin.

install(FreeMarker) {
        templateLoader = ClassTemplateLoader(this::class.java.classLoader, "templates")
}
install(ContentNegotiation) {
        json()
}
routing {
        get("/html-freemarker") {
            call.respond(FreeMarkerContent("index.ftl", mapOf("name" to "Shalaga"), ""))
        }
}
user_118104700

ok I think I found the solution, in the configuration of Serialization I did define the route that i need sterilization in it ( my Http Api route), something like this

fun Application.configureSerialization() {
routing {
    route("api"){
        install(ContentNegotiation) {
            json()
        }
    }

}

} so the Serialization will only work in this route

user_139223030
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