vavr serialization can ignore field?

[BornToRain]

vavr serialization

    "items": {
      "async": false,
      "ordered": false,
      "traversableAgain": true,
      "lazy": false,
      "sequential": false,
      "distinct": true,
      "memoized": false,
      "singleValued": false,
      "empty": true,
      "orNull": null,
      "id": "451565338509840384"
    }

I want serialization

"items": {
      "id": "451565338509840384"
     }

[ruslansennov]

what object are you serializing? can you provide a reproducer?

[BornToRain]

io.vavr.collection.HashMap

[ruslansennov]

you should register the VavrModule in the ObjectMapper

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.vavr.collection.HashMap;
import io.vavr.jackson.datatype.VavrModule;
import org.junit.Test;

public class Iss119 {

    private final HashMap<String, String> items = HashMap.of("id", "451565338509840384");

    @Test
    public void unregistered() throws JsonProcessingException {
        ObjectMapper mapper = new ObjectMapper();
        System.out.println(mapper.writeValueAsString(items));
        // {"async":false,"lazy":false,"empty":false,"traversableAgain":true ...
    }

    @Test
    public void registered() throws JsonProcessingException {
        ObjectMapper mapper = new ObjectMapper()
                .registerModule(new VavrModule());  //  <-- register Vavr Jackson Module
        System.out.println(mapper.writeValueAsString(items));
        // {"id":"451565338509840384"}
    }
}

[BornToRain]

thanks, vavr collection is ok.but Future have problem.

controller return io.vavr.concurrent.Future have error;

Future.toCompletableFuture() is ok;

[ruslansennov]

VavrModule does not process serialization/deserialization of Future and Try