Hi, I am trying to serialize data class and getting empty object as result, I can't find out what is...

# serialization

[Tomas Kormanak]

Hi, I am trying to serialize data class and getting empty object as result, I can't find out what is wrong

@Serializable
data class Params(val deviceId: String = "someId")

val params = Params()

val result  = Json.encodeToString(Params.serializer(), params)
console.log("params", params)
console.log("result ",  result)

I get this result:

[Tomas Kormanak]

It must be something stupid as usual, but I can't find it.

[Paul Griffith]

You need to tell your Json instance to encode default values, or change the value of deviceId from the default

[Prayansh Srivastava]

try this

val result  = Json { encodeDefaults = true }.encodeToString(Params.serializer(), params)

[Tomas Kormanak]

That was it .Thank you!