Hi there! Maybe my question is really very simple,...

# serialization

[Olaf Gottschalk]

Hi there!
Maybe my question is really very simple, but so far I cannot find the documentation for this... 😞

Suppose I have a serializable data class

@Serializable
data class Foo(
    val bar: String
)

which has many json files created and stored on disk.
The all look like this:

{
  "bar": "value"
}

Now I need to rename the field, also affecting the newly serialized output. BUT: I still need to be able to read (deserizlize) the old files without touching them.
So:

@Serializable
data class Foo(
    val baz: String
)

is the new format.. where baz actually is just the new name for bar...

I tried @SerialName(...) but that does not work, it does not act as an alias, it just changes the serial name for both read & write...

Any hints how this is supposed to be done?
Thanks!

[Emil Kantis]

@JsonNames would probably do the trick?