RESTful API + POST + json body

Library:
       <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.7.2</version>
        </dependency>

Mapper Class

public class MapperUtil {

    private final static ObjectMapper mapper = new ObjectMapper();

    public static <T> T readAsObjectOf(Class<T> clazz, String value) {
        try {
            return mapper.readValue(value, clazz);
        } catch (IOException e) {
            logger.error(e.getMessage());
        }
        return null;
    }
}

@POST
@Path("/transaction")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public TransactionIdDetails requestTransactionIds(String jsonInput) {

        TransactionIdFilterInput transactionIdFilterInput = MapperUtil.readAsObjectOf(TransactionIdFilterInput.class,
                jsonInput);
.........
.........
            }