Example of Kotlin Serialization with Spring 5.3

Example of using Kotlin serialization with Spring 5.3

See the post.

To test polymorphism, send POST requests to localhost:8080/polymorphic with body as shown below.

{
    "extra": 1,
    "base": {
        "type": "io.vividcode.kotlinserializationexample.Child1",
        "name": "hello",
        "v1": "xyz"
    }
}