Joda Datetime with dropwizard (0.6.0-SNAPSHOT)

DateTimeDeserializer.java

public class DateTimeDeserializer extends JsonDeserializer<DateTime> {

    @Override
    public DateTime deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {
        if (jp.getCurrentToken() == JsonToken.VALUE_NUMBER_INT) {
            return new DateTime(jp.getLongValue());
        }

        throw ctxt.mappingException("Expected JSON Number");
    }
}

DateTimeSerializer.java

public class DateTimeSerializer extends JsonSerializer<DateTime> {
    @Override
    public void serialize(DateTime value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
        jgen.writeNumber(value.getMillis());
    }
}

JodaDateTimeModule.java

public class JodaDateTimeModule extends SimpleModule {
    public JodaDateTimeModule() {
        addDeserializer(DateTime.class, new DateTimeDeserializer());
        addSerializer(DateTime.class, new DateTimeSerializer());
    }
}

Service.java

    @Override
    public void initialize(Bootstrap<RouterConfiguration> bootstrap) {
// ...
        bootstrap.getObjectMapperFactory().registerModule(new JodaDateTimeModule());
// ...
    }