Be able to change the default SerializersModule

[baillyjamy]

Hello,

I have a Get rest call that I can receive two types of data: B or C.
B and C are children of A. A is an abstract class. There is no serialization / deserialization problem on the JVM. But with Kotlin/JS I need to register my subclasses in a SerializersModule like this :

val module = SerializersModule {
    polymorphic(A::class) {
        subclass(B::class)
        subclass(C::class)
    }
}

Cf : Kotlin/kotlinx.serialization#1077

After registering my module in a Json instance, I can easily deserialize my object in Kotlin/JS env like this :

val jsonString = "{"type":"B",...}"
val format = Json { serializersModule = module }
val instanceB: B = format.decodeFromString(jsonString)

So I would like to change default SerializersModule of an instance of RestClient.
Is it possible or can this feature be implemented?
Or do you have a better solution?

[rjaros]

For now there is no way to define custom serializer modules. You can of course just stick to dynamic/text and serialize/deserialize the data externally.

But I think it should be fairly easy to add support for this in the next release by adding an optional parameter to the RectClient constructor.

[baillyjamy]

At the moment I just created a RestClient function extension with a paste copy of remoteCall() and add a parameter for the SerializerModule.
A little ugly but it will be temporary while waiting for the SerializerModule to be added in the constructor.
By the way, it might be interesting to add SerializerModule as a parameter of the two remoteCall() that handle deserialization if we want to use a specific module just once. What do you think about it?

[rjaros]

It could be useful for input data serialization as well, so I think it would be easier to make it available for all methods.

[rjaros]

Released with 4.0.0