crnk-io/Lobby

Hi
Is there anyway to make crnk accepts this url
/parents/{parentID}/childs/{ChildID}
I see in the documentation an example but I don't know how I can apply it if am using jpaentityrepository base
Parent class

@Data
@JsonApiResource(type = "parents")
@Entity
@Table(name = "parents")
public class Parent {

  @Id
  @JsonApiId
  @GeneratedValue(generator = "UUID")
  @GenericGenerator(name = "UUID", strategy = "org.hibernate.id.UUIDGenerator")
  @Column(name = "id", updatable = false, nullable = false)
  private UUID id;
  @NotEmpty
  private String name;

  @JsonApiRelation(serialize = SerializeType.ONLY_ID)
  @OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, orphanRemoval = true)
  private List<Child> childs;

}

Child class

@Data
@JsonApiResource(type = "childs")
@Entity
@Table(name = "childs")
public class Child {


  @Id
  @JsonApiId
  @GeneratedValue(generator = "UUID")
  @GenericGenerator(name = "UUID", strategy = "org.hibernate.id.UUIDGenerator")
  @Column(name = "id", updatable = false, nullable = false)
  private UUID id;

  @ManyToOne
  @JoinColumn(name = "parent_id", referencedColumnName = "id")
  private Parent parent;

  @NotEmpty(message = "koko")
  private String value;


}

when I add nested = true to the child class
it throws an exception any help
Please advice