hi I want to serialize a custom class into a nested map with | Serialization | Kotlinlang

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Yao-Wen Mei

Yao-Wen Mei

4 months ago

hi, I want to serialize a custom class into a nested map (with my own encoder, not introducing JSON into my code base). For example, if I have my data classes defined like this:

@Serializable
data class Project(val name:String, val owners: List<Users>)

@Serializable
data class Users(val name: String)

After serialization, I wish to get a nested map equals to:

val map = mutableMapOf<String, Any>()
map.put("name", "project_name")
map.put("owners", listOf(mapOf("name" to "user1"), mapOf("name" to "user2"))

Could you please give me some hint how can I implement this

Encoder

please ( I do have a

Decoder

working BTW)? Should my Encoder extend the

AbstractEncoder()

or

TaggedEncoder()

? May I get some document for how to implement this? The official guide only contains an example for serializing to

List

, but does not show how to get the key values if I want to serialize to

Map

. Thank you very much.

Dominaezzz

Dominaezzz

4 months ago

Check out https://github.com/Kotlin/kotlinx.serialization/tree/master/formats%2Fproperties

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