Get Published Event Endpoint

In this lesson, we'll implement the get published event details endpoint.

Implementing the Get Published Event Endpoint

We'll add a new endpoint to our PublishedEventController class that retrieves the details of a specific published event.

@GetMapping(path = "/{eventId}")
public ResponseEntity<GetPublishedEventDetailsResponseDto> getPublishedEventDetails(
    @PathVariable UUID eventId
) {
    return eventService.getPublishedEvent(eventId)
        .map(eventMapper::toGetPublishedEventDetailsResponseDto)
        .map(ResponseEntity::ok)
        .orElse(ResponseEntity.notFound().build());
}

Let's break down what this code does:

The @GetMapping annotation with a path variable defines the URL pattern for this endpoint
The method takes an eventId parameter that is extracted from the URL path
It calls the eventService.getPublishedEvent() method to fetch the event details
The result is mapped to our DTO using the eventMapper
If an event is found, it returns a 200 OK response with the event details
If no event is found, it returns a 404 Not Found response

Configuring Security

We need to ensure this endpoint is publicly accessible. Let's update the security configuration:

.requestMatchers(HttpMethod.GET, "/api/v1/published-events/**").permitAll()

This configuration uses a wildcard (**) to match any path after /api/v1/published-events/, including our new endpoint that includes the event ID.

Summary

Implemented the get published event endpoint
Updated SecurityConfig to make calls to make the get published event endpoint public