Improving a bit the logging services

Author: jabrena

examples/spring-boot-demo/implementation/src/main/java/info/jab/ms/controller/FilmController.java

@@ -7,6 +7,8 @@
 import java.util.Map;
 import java.util.Objects;
 import java.util.function.Predicate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
@@ -30,6 +32,8 @@
 @RequestMapping("/api/v1")
 public class FilmController implements FilmControllerApi {
 
+    private static final Logger logger = LoggerFactory.getLogger(FilmController.class);
+
     private final FilmService filmService;
 
     // Predicate to validate that startsWith parameter is exactly one letter
@@ -65,6 +69,7 @@ public ResponseEntity<FilmDTO> getFilms(String startsWith) {
         }
 
         // Delegate business logic to service layer
+        logger.debug("Fetching films starting with letter: {}", startsWith);
         List<Film> films = filmService.findFilmEntitiesByStartingLetter(startsWith);
 
         // Build filter map for response metadata