is there anything like a alias for SerialModule ? ...

# serialization

[Nikky]

is there anything like a alias for SerialModule ? or any other way to move / refactor sealed classes and have it parse old json that has values for type ?

[Dominaezzz]

Were you using the default @SerialName s before? You might have to explicitly use @SerialName with the old type s.

[Nikky]

i can change it back so that the old code compiles.. but how would i migrate so that it recognizes "type": "oldpackage.Type" as a alias to newpackage.Type ?
or is manual intervention required ?

[Dominaezzz]

You'll need to annotate all the subclasses with,
@SerialName("oldpackage.Type") .

[Nikky]

which means that that key will end up in the json 😕

[Dominaezzz]

Oh, you want both to work!

[Nikky]

i want both to parse but the new one to be what stringify outputs, if possible..

[Dominaezzz]

I think this is more/less what you're looking for https://github.com/Kotlin/kotlinx.serialization/pull/772 .

[Dominaezzz]

You can then register a "default" for the old names.

[Nikky]

this looks like it could be useful..

[Dominaezzz]

It hasn't been released yet though, so will have to make due with a custom serializer. Like JsonTransformingSerializer .

[Dominaezzz]

You can use that to edit the types if they're old.

[Nikky]

so i cannot use the default {} block quite yet since this is not in a release.. 😢 well i hope it will be available soon