"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
)

func (api objectAPIHandlers) ListenNotificationHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "ListenNotification")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

	// Validate if bucket exists.
	objAPI := api.ObjectAPI()
	if objAPI == nil {

			Queries("versioning", "")
		// GetBucketNotification
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.GetBucketNotificationHandler)).
			Queries("notification", "")
		// ListenNotification
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.ListenNotificationHandler, noThrottleS3HFlag, traceHdrsS3HFlag)).
			Queries("events", "{events:.*}")

		case "PutBucketNotification":
			// Register PutBucketNotification Handler.
			bucket.Methods(http.MethodPut).HandlerFunc(api.PutBucketNotificationHandler).Queries("notification", "")
		case "ListenNotification":
			// Register ListenNotification Handler.
			bucket.Methods(http.MethodGet).HandlerFunc(api.ListenNotificationHandler).Queries("events", "{events:.*}")
		}
	}
}

| Supported ILM Transition Event Types |
| :-----                               |
| `s3:ObjectRestore:Post`              |
| `s3:ObjectRestore:Completed`         |

| Supported Global Event Types (Only supported through ListenNotification API) |
| :-----                                                                       |
| `s3:BucketCreated`                                                           |