[英]kotlinx de/serialization sealed class/enum
Writing chat app using kotlin, historically from nodejs I have websocket json objects in/output format:使用 kotlin 编写聊天应用程序,历史上来自 nodejs 我有 websocket json 对象/输出格式:
{"action": "join:chatroom", "payload", "chatroom-name"}
{"action": "leave:chatroom", "payload", "chatroom-name"}
{"action": "message", "payload", {"id": 1, "text": "blah", "user": {"name": "Roman"}}}
{"action": "notification", "payload", {"id": 1, "verb": "blah", "user": {"name": "Roman"}}}
trying to adopt kotlinx serialization to be able to work with this type of approach with no luck seems like sealed class
is the closest what I can try but how to change type
to action
尝试采用 kotlinx 序列化以能够使用这种类型的方法而没有运气似乎
sealed class
是我可以尝试的最接近的方法,但是如何将type
更改为action
took this approach https://ahsensaeed.com/sealed-classes-kotlinx-serialization-deserialization/ trying to do something like:采用这种方法https://ahsensaeed.com/sealed-classes-kotlinx-serialization-deserialization/试图做类似的事情:
@Polymorphic
@Serializable
sealed class BackendAction{
@Serializable
data class Auth(
// val action: String = "authorize",
val payload: String = ""
) : BackendAction()
}
class BackendActionSerializer {
private val sealedModule = SerializersModule {
polymorphic(BackendAction::class) {
BackendAction.Auth::class with BackendAction.Auth.serializer()
}
}
private val serializer: KSerializer<BackendAction>
get() = BackendAction.serializer()
val format: StringFormat
get() = Json(configuration = JsonConfiguration(classDiscriminator = "action"), context = sealedModule)
fun toStringT(json: String): BackendAction {
return format.parse(serializer, json)
}
fun toTString(t: BackendAction): String {
return format.stringify(serializer, t)
}
}
and call:并致电:
val act = BackendAction.Auth("blah")
val serializer = BackendActionSerializer()
val data = serializer.toTString(act)
gives {"action":"com.project.path.BackendAction.Auth","payload":"blah"}
so I need mapping com.project.path.BackendAction.Auth
to authorize
给出
{"action":"com.project.path.BackendAction.Auth","payload":"blah"}
所以我需要映射com.project.path.BackendAction.Auth
来authorize
EDIT:编辑:
answering my question: @SerialName("authorize")
it was easy:)回答我的问题:
@SerialName("authorize")
这很容易:)
@Polymorphic
@Serializable
sealed class BackendAction{
@Serializable
@SerialName("authorize")
data class Auth(
var payload: String = ""
) : BackendAction()
}
working web ui for this chat app here: https://www.lonje.com/在这里为这个聊天应用程序工作 web ui: https://www.lonje.com/
@SerialName("authorize")
do the trick @SerialName("authorize")
解决问题
@Polymorphic
@Serializable
sealed class BackendAction{
@Serializable
@SerialName("authorize")
data class Auth(
var payload: String = ""
) : BackendAction()
}
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