Create Dto Classes

In this lesson, we'll implement the Data Transfer Objects (DTOs) needed to implement our get event endpoint.

Create the DTOs

We'll create two DTOs - one for the event details and another for its ticket types.

Let's start with the ticket type DTO:

@Data
@AllArgsConstructor
@NoArgsConstructor
public class GetEventDetailsTicketTypesResponseDto {
    private UUID id;
    private String name;
    private Double price;
    private String description;
    private Integer totalAvailable;
    private LocalDateTime createdAt;
    private LocalDateTime updatedAt;
}

Next, let's create the event details DTO:

@Data
@AllArgsConstructor
@NoArgsConstructor
public class GetEventDetailsResponseDto {
    private UUID id;
    private String name;
    private LocalDateTime start;
    private LocalDateTime end;
    private String venue;
    private LocalDateTime salesStart;
    private LocalDateTime salesEnd;
    private EventStatusEnum status;
    private List<GetEventDetailsTicketTypesResponseDto> ticketTypes = new ArrayList<>();
    private LocalDateTime createdAt;
    private LocalDateTime updatedAt;
}

Adding Mapper Methods

We need to add methods to our EventMapper interface to convert our entities to these DTOs:

@Mapper(componentModel = "spring", unmappedTargetPolicy = ReportingPolicy.IGNORE)
public interface EventMapper {
    // ... existing methods ...

    GetEventDetailsTicketTypesResponseDto toGetEventDetailsTicketTypesResponseDto(TicketType ticketType);

    GetEventDetailsResponseDto toGetEventDetailsResponseDto(Event event);
}

Summary

Created GetEventDetailsResponseDto to represent complete event information
Created GetEventDetailsTicketTypeResponseDto to represent ticket type details
Added mapper methods to convert entities to DTOs