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TrueLayer Java SDK for https://truelayer.com

There is a newer version: 16.0.0

package com.truelayer.java;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyNamingStrategies;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;

/**
 * Library constants class
 */
public class Utils {
    private Utils() {}

    private static ObjectMapper OBJECT_MAPPER_INSTANCE = null;

    public static ObjectMapper getObjectMapper() {
        if (OBJECT_MAPPER_INSTANCE == null) {
            ObjectMapper objectMapper = new ObjectMapper();

            // required for optionals deserialization
            objectMapper.registerModule(new Jdk8Module());
            // required for ZonedDatetime instances
            objectMapper.registerModule(new JavaTimeModule());
            // serialize all camel cases fields to snake
            objectMapper.setPropertyNamingStrategy(PropertyNamingStrategies.SNAKE_CASE);
            // do not include null fields in JSON
            objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
            // do not fail in case of unknown properties returned JSON payloads
            objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
            // do not fail in case of empty beans on requests
            objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);

            OBJECT_MAPPER_INSTANCE = objectMapper;
        }
        return OBJECT_MAPPER_INSTANCE;
    }
}