Add me endpoint

src/main/java/com/podzilla/auth/controller/AuthenticationController.java

@@ -12,10 +12,12 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.GetMapping;
 
 @RestController
 @RequestMapping("/auth")
@@ -101,4 +103,19 @@ public ResponseEntity<?> refreshToken(
                 "User " + email + " refreshed tokens successfully",
                 HttpStatus.OK);
     }
+
+    @GetMapping("/me")
+    @Operation(
+            summary = "Get Current User",
+            description = "Fetches the details of the currently logged-in user."
+    )
+    @ApiResponse(
+            responseCode = "200",
+            description = "User details fetched successfully"
+    )
+    public UserDetails getCurrentUser() {
+        UserDetails userDetails = authenticationService.getCurrentUserDetails();
+        LOGGER.info("Fetched details for user {}", userDetails.getUsername());
+        return userDetails;
+    }
 }

src/main/java/com/podzilla/auth/service/AuthenticationService.java

@@ -122,6 +122,19 @@ public String refreshToken(final HttpServletRequest request,
         }
     }
 
+    public UserDetails getCurrentUserDetails() {
+        Authentication authentication =
+                SecurityContextHolder.getContext().getAuthentication();
+
+        Object principal = authentication.getPrincipal();
+        if (principal instanceof UserDetails) {
+            return (UserDetails) principal;
+        } else {
+            throw new InvalidActionException(
+                    "User details not saved correctly.");
+        }
+    }
+
     private void checkNotNullValidationException(final String value,
                                                  final String message) {
         if (value == null || value.isEmpty()) {