diff --git a/README.md b/README.md
index 18a246e..648d936 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
 # java-explore-with-me
-Template repository for ExploreWithMe project.
+[Ссылка на пул-реквест](https://github.com/MrGriv/java-explore-with-me/pull/3)
diff --git a/ewm-service/src/main/java/ru/practicum/controller/ErrorHandler.java b/ewm-service/src/main/java/ru/practicum/controller/ErrorHandler.java
index a35eb50..127657a 100644
--- a/ewm-service/src/main/java/ru/practicum/controller/ErrorHandler.java
+++ b/ewm-service/src/main/java/ru/practicum/controller/ErrorHandler.java
@@ -1,5 +1,6 @@
 package ru.practicum.controller;
 
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -14,11 +15,13 @@
 import java.time.format.DateTimeFormatter;
 import java.util.Arrays;
 
+@Slf4j
 @RestControllerAdvice
 public class ErrorHandler {
     @ExceptionHandler
     @ResponseStatus(HttpStatus.CONFLICT)
     public ApiError handleConflictException(final ConflictException e) {
+        log.debug("Получен статус 409 CONFLICT {}", e.getMessage(), e);
         return new ApiError(e.getMessage(),
                 HttpStatus.CONFLICT.toString(),
                 Arrays.toString(e.getStackTrace()),
@@ -28,6 +31,7 @@ public ApiError handleConflictException(final ConflictException e) {
     @ExceptionHandler
     @ResponseStatus(HttpStatus.NOT_FOUND)
     public ApiError handleNotFoundException(final NotFoundException e) {
+        log.debug("Получен статус 404 NOT FOUND {}", e.getMessage(), e);
         return new ApiError(e.getMessage(),
                 HttpStatus.NOT_FOUND.toString(),
                 Arrays.toString(e.getStackTrace()),
@@ -37,6 +41,7 @@ public ApiError handleNotFoundException(final NotFoundException e) {
     @ExceptionHandler
     @ResponseStatus(HttpStatus.CONFLICT)
     public ApiError handleSqlException(final SQLException e) {
+        log.debug("Получен статус 409 CONFLICT {}", e.getMessage(), e);
         return new ApiError(e.getMessage(),
                 HttpStatus.CONFLICT.toString(),
                 Arrays.toString(e.getStackTrace()),
@@ -46,6 +51,7 @@ public ApiError handleSqlException(final SQLException e) {
     @ExceptionHandler
     @ResponseStatus(HttpStatus.BAD_REQUEST)
     public ApiError handleBadRequestException(final BadRequestException e) {
+        log.debug("Получен статус 400 BAD REQUEST {}", e.getMessage(), e);
         return new ApiError(e.getMessage(),
                 HttpStatus.BAD_REQUEST.toString(),
                 Arrays.toString(e.getStackTrace()),
diff --git a/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCategoryController.java b/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCategoryController.java
index 763e1ea..4ed8271 100644
--- a/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCategoryController.java
+++ b/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCategoryController.java
@@ -2,6 +2,7 @@
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 import ru.practicum.dto.category.CategoryDto;
 import ru.practicum.dto.category.NewCategoryDto;
@@ -10,7 +11,7 @@
 
 import javax.validation.Valid;
 
-@RestController
+@Controller
 @RequiredArgsConstructor
 @RequestMapping(ApiPathConstants.ADMIN_CATEGORY_PATH)
 public class AdminCategoryController {
@@ -27,7 +28,7 @@ public ResponseEntity<Void> delete(@PathVariable Long id) {
     }
 
     @PatchMapping(ApiPathConstants.BY_ID_PATH)
-    public CategoryDto update(@PathVariable Long id,
+    public ResponseEntity<CategoryDto> update(@PathVariable Long id,
                               @Valid @RequestBody NewCategoryDto newCategoryDto) {
         return categoryService.update(id, newCategoryDto);
     }
diff --git a/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCompilationsController.java b/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCompilationsController.java
index 0e10cfd..516bfb4 100644
--- a/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCompilationsController.java
+++ b/ewm-service/src/main/java/ru/practicum/controller/admin/AdminCompilationsController.java
@@ -2,6 +2,7 @@
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 import ru.practicum.dto.compilation.CompilationDto;
 import ru.practicum.dto.compilation.NewCompilationDto;
@@ -11,7 +12,7 @@
 
 import javax.validation.Valid;
 
-@RestController
+@Controller
 @RequiredArgsConstructor
 @RequestMapping(ApiPathConstants.ADMIN_COMPILATIONS_PATH)
 public class AdminCompilationsController {
@@ -28,7 +29,7 @@ public ResponseEntity<Void> delete(@PathVariable Long id) {
     }
 
     @PatchMapping(ApiPathConstants.BY_ID_PATH)
-    public CompilationDto update(@Valid @RequestBody UpdateCompilationRequest updateCompilation,
+    public ResponseEntity<CompilationDto> update(@Valid @RequestBody UpdateCompilationRequest updateCompilation,
                                  @PathVariable Long id) {
         return compilationService.update(updateCompilation, id);
     }
diff --git a/ewm-service/src/main/java/ru/practicum/controller/admin/AdminUserController.java b/ewm-service/src/main/java/ru/practicum/controller/admin/AdminUserController.java
index cb8b28d..3a7883a 100644
--- a/ewm-service/src/main/java/ru/practicum/controller/admin/AdminUserController.java
+++ b/ewm-service/src/main/java/ru/practicum/controller/admin/AdminUserController.java
@@ -2,6 +2,7 @@
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 import ru.practicum.dto.user.UserDto;
 import ru.practicum.service.UserService;
@@ -10,7 +11,7 @@
 import javax.validation.Valid;
 import java.util.List;
 
-@RestController
+@Controller
 @RequiredArgsConstructor
 @RequestMapping(ApiPathConstants.ADMIN_USERS_PATH)
 public class AdminUserController {
@@ -22,7 +23,7 @@ public ResponseEntity<UserDto> add(@Valid @RequestBody UserDto userDto) {
     }
 
     @GetMapping
-    public List<UserDto> get(@RequestParam(defaultValue = "") List<Long> ids,
+    public ResponseEntity<List<UserDto>> get(@RequestParam(defaultValue = "") List<Long> ids,
                              @RequestParam(defaultValue = "0") int from,
                              @RequestParam(defaultValue = "10") int size) {
         return userService.get(ids, from, size);
diff --git a/ewm-service/src/main/java/ru/practicum/controller/pvt/PrivateFriendController.java b/ewm-service/src/main/java/ru/practicum/controller/pvt/PrivateFriendController.java
new file mode 100644
index 0000000..81cd64b
--- /dev/null
+++ b/ewm-service/src/main/java/ru/practicum/controller/pvt/PrivateFriendController.java
@@ -0,0 +1,37 @@
+package ru.practicum.controller.pvt;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+import ru.practicum.dto.event.EventFullDto;
+import ru.practicum.model.user.ShowEventsState;
+import ru.practicum.service.FriendService;
+import ru.practicum.util.ApiPathConstants;
+
+import java.util.List;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping(ApiPathConstants.USER_ID_FRIEND_PATH)
+public class PrivateFriendController {
+    private final FriendService friendService;
+
+    @PostMapping(ApiPathConstants.FRIEND_ID)
+    public void add(@PathVariable Long id, @PathVariable Long friendId) {
+        friendService.add(id, friendId);
+    }
+
+    @GetMapping(ApiPathConstants.FRIEND_ID)
+    public List<EventFullDto> getFriendParticipations(@PathVariable Long id,
+                                                      @PathVariable Long friendId,
+                                                      @RequestParam(defaultValue = "0") int from,
+                                                      @RequestParam(defaultValue = "10") int size) {
+        return friendService.getFriendParticipation(id, friendId, from, size);
+    }
+
+    @PatchMapping
+    public void changeEventsVisibility(@PathVariable Long id,
+                                       @RequestParam ShowEventsState state,
+                                       @RequestParam(required = false) List<Long> events) {
+        friendService.changeEventsVisibility(id, state, events);
+    }
+}
diff --git a/ewm-service/src/main/java/ru/practicum/dto/user/UserDto.java b/ewm-service/src/main/java/ru/practicum/dto/user/UserDto.java
index 0cda114..fa830ff 100644
--- a/ewm-service/src/main/java/ru/practicum/dto/user/UserDto.java
+++ b/ewm-service/src/main/java/ru/practicum/dto/user/UserDto.java
@@ -4,6 +4,7 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
+import ru.practicum.model.user.ShowEventsState;
 
 import javax.validation.constraints.Email;
 import javax.validation.constraints.NotBlank;
@@ -24,4 +25,5 @@ public class UserDto {
     @NotEmpty
     @Size(min = 6, max = 254)
     private String email;
+    private ShowEventsState showEventsState;
 }
diff --git a/ewm-service/src/main/java/ru/practicum/mapper/UserMapper.java b/ewm-service/src/main/java/ru/practicum/mapper/UserMapper.java
index 3b81527..4608ce0 100644
--- a/ewm-service/src/main/java/ru/practicum/mapper/UserMapper.java
+++ b/ewm-service/src/main/java/ru/practicum/mapper/UserMapper.java
@@ -2,7 +2,7 @@
 
 import org.mapstruct.Mapper;
 import ru.practicum.dto.user.UserDto;
-import ru.practicum.model.User;
+import ru.practicum.model.user.User;
 
 @Mapper(componentModel = "spring")
 public interface UserMapper {
diff --git a/ewm-service/src/main/java/ru/practicum/model/User.java b/ewm-service/src/main/java/ru/practicum/model/User.java
deleted file mode 100644
index 65cc085..0000000
--- a/ewm-service/src/main/java/ru/practicum/model/User.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package ru.practicum.model;
-
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.Setter;
-
-import javax.persistence.*;
-
-@Entity
-@Getter
-@Setter
-@NoArgsConstructor
-@AllArgsConstructor
-@Table(name = "users")
-public class User {
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    @Column(name = "user_id")
-    private Long id;
-    private String name;
-    private String email;
-}
diff --git a/ewm-service/src/main/java/ru/practicum/model/event/Event.java b/ewm-service/src/main/java/ru/practicum/model/event/Event.java
index 3accca3..c8fbde8 100644
--- a/ewm-service/src/main/java/ru/practicum/model/event/Event.java
+++ b/ewm-service/src/main/java/ru/practicum/model/event/Event.java
@@ -5,7 +5,7 @@
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 import ru.practicum.model.LocationDb;
-import ru.practicum.model.User;
+import ru.practicum.model.user.User;
 
 import javax.persistence.*;
 import java.time.LocalDateTime;
diff --git a/ewm-service/src/main/java/ru/practicum/model/request/Request.java b/ewm-service/src/main/java/ru/practicum/model/request/Request.java
index e481ae9..768cae9 100644
--- a/ewm-service/src/main/java/ru/practicum/model/request/Request.java
+++ b/ewm-service/src/main/java/ru/practicum/model/request/Request.java
@@ -4,7 +4,7 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
-import ru.practicum.model.User;
+import ru.practicum.model.user.User;
 import ru.practicum.model.event.Event;
 
 import javax.persistence.*;
diff --git a/ewm-service/src/main/java/ru/practicum/model/user/ShowEventsState.java b/ewm-service/src/main/java/ru/practicum/model/user/ShowEventsState.java
new file mode 100644
index 0000000..5b14c00
--- /dev/null
+++ b/ewm-service/src/main/java/ru/practicum/model/user/ShowEventsState.java
@@ -0,0 +1,7 @@
+package ru.practicum.model.user;
+
+public enum ShowEventsState {
+    ALL,
+    CHOSEN,
+    HIDE
+}
diff --git a/ewm-service/src/main/java/ru/practicum/model/user/User.java b/ewm-service/src/main/java/ru/practicum/model/user/User.java
new file mode 100644
index 0000000..432c6c4
--- /dev/null
+++ b/ewm-service/src/main/java/ru/practicum/model/user/User.java
@@ -0,0 +1,35 @@
+package ru.practicum.model.user;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import javax.persistence.*;
+import java.util.List;
+
+@Entity
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@Table(name = "users")
+public class User {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "user_id")
+    private Long id;
+    private String name;
+    private String email;
+    @ElementCollection
+    @CollectionTable(name = "friends", joinColumns = @JoinColumn(name = "user_id"))
+    @Column(name = "friend_id")
+    private List<Long> friends;
+    @Enumerated(EnumType.STRING)
+    @Column(name = "show_event_state")
+    private ShowEventsState showEventsState;
+    @ElementCollection
+    @CollectionTable(name = "users_events", joinColumns = @JoinColumn(name = "user_id"))
+    @Column(name = "event_id")
+    private List<Long> userEvents;
+}
diff --git a/ewm-service/src/main/java/ru/practicum/service/CategoryService.java b/ewm-service/src/main/java/ru/practicum/service/CategoryService.java
index 606989d..232e6f9 100644
--- a/ewm-service/src/main/java/ru/practicum/service/CategoryService.java
+++ b/ewm-service/src/main/java/ru/practicum/service/CategoryService.java
@@ -11,7 +11,7 @@ public interface CategoryService {
 
     ResponseEntity<Void> delete(Long categoryId);
 
-    CategoryDto update(Long id, NewCategoryDto newCategoryDto);
+    ResponseEntity<CategoryDto> update(Long id, NewCategoryDto newCategoryDto);
 
     List<CategoryDto> get(int from, int size);
 
diff --git a/ewm-service/src/main/java/ru/practicum/service/CompilationService.java b/ewm-service/src/main/java/ru/practicum/service/CompilationService.java
index d2a6bb9..b2c1881 100644
--- a/ewm-service/src/main/java/ru/practicum/service/CompilationService.java
+++ b/ewm-service/src/main/java/ru/practicum/service/CompilationService.java
@@ -12,7 +12,7 @@ public interface CompilationService {
 
     ResponseEntity<Void> delete(Long compilationId);
 
-    CompilationDto update(UpdateCompilationRequest updateCompilation, Long compilationId);
+    ResponseEntity<CompilationDto> update(UpdateCompilationRequest updateCompilation, Long compilationId);
 
     List<CompilationDto> get(Boolean pinned, int from, int size);
 
diff --git a/ewm-service/src/main/java/ru/practicum/service/FriendService.java b/ewm-service/src/main/java/ru/practicum/service/FriendService.java
new file mode 100644
index 0000000..b2fa57e
--- /dev/null
+++ b/ewm-service/src/main/java/ru/practicum/service/FriendService.java
@@ -0,0 +1,14 @@
+package ru.practicum.service;
+
+import ru.practicum.dto.event.EventFullDto;
+import ru.practicum.model.user.ShowEventsState;
+
+import java.util.List;
+
+public interface FriendService {
+    void add(Long userId, Long friendId);
+
+    List<EventFullDto> getFriendParticipation(Long userId, Long friendId, int from, int size);
+
+    void changeEventsVisibility(Long userId, ShowEventsState state, List<Long> events);
+}
diff --git a/ewm-service/src/main/java/ru/practicum/service/UserService.java b/ewm-service/src/main/java/ru/practicum/service/UserService.java
index 65a5c59..617887b 100644
--- a/ewm-service/src/main/java/ru/practicum/service/UserService.java
+++ b/ewm-service/src/main/java/ru/practicum/service/UserService.java
@@ -8,7 +8,7 @@
 public interface UserService {
     ResponseEntity<UserDto> add(UserDto userDto);
 
-    List<UserDto> get(List<Long> ids, int from, int size);
+    ResponseEntity<List<UserDto>> get(List<Long> ids, int from, int size);
 
     ResponseEntity<Void> delete(Long userId);
 }
diff --git a/ewm-service/src/main/java/ru/practicum/service/impl/CategoryServiceImpl.java b/ewm-service/src/main/java/ru/practicum/service/impl/CategoryServiceImpl.java
index 3fa85e6..e073f5b 100644
--- a/ewm-service/src/main/java/ru/practicum/service/impl/CategoryServiceImpl.java
+++ b/ewm-service/src/main/java/ru/practicum/service/impl/CategoryServiceImpl.java
@@ -6,6 +6,7 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import ru.practicum.dto.category.CategoryDto;
 import ru.practicum.dto.category.NewCategoryDto;
 import ru.practicum.exception.NotFoundException;
@@ -18,6 +19,7 @@
 import java.util.List;
 
 @Service
+@Transactional
 @RequiredArgsConstructor
 public class CategoryServiceImpl implements CategoryService {
     private final CategoryStorage categoryStorage;
@@ -37,17 +39,18 @@ public ResponseEntity<Void> delete(Long id) {
     }
 
     @Override
-    public CategoryDto update(Long id, NewCategoryDto newCategoryDto) {
+    public ResponseEntity<CategoryDto> update(Long id, NewCategoryDto newCategoryDto) {
         Category updatedCategory = categoryStorage.findById(id)
                 .orElseThrow(() -> new NotFoundException("Category: Категория с id=" + id + " не найдена"));
         if (!updatedCategory.getName().equals(newCategoryDto.getName())) {
             updatedCategory.setName(newCategoryDto.getName());
-            return categoryMapper.toDto(categoryStorage.save(updatedCategory));
+            return new ResponseEntity<>(categoryMapper.toDto(categoryStorage.save(updatedCategory)), HttpStatus.OK);
         }
-        return categoryMapper.toDto(updatedCategory);
+        return new ResponseEntity<>(categoryMapper.toDto(updatedCategory), HttpStatus.OK);
     }
 
     @Override
+    @Transactional(readOnly = true)
     public List<CategoryDto> get(int from, int size) {
         PageRequest page = PageRequest.of(from > 0 ? from / size : 0, size);
         Page<Category> categories = categoryStorage.findAll(page);
diff --git a/ewm-service/src/main/java/ru/practicum/service/impl/CompilationServiceImpl.java b/ewm-service/src/main/java/ru/practicum/service/impl/CompilationServiceImpl.java
index 4a37c9a..299f9b3 100644
--- a/ewm-service/src/main/java/ru/practicum/service/impl/CompilationServiceImpl.java
+++ b/ewm-service/src/main/java/ru/practicum/service/impl/CompilationServiceImpl.java
@@ -6,6 +6,7 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import ru.practicum.dto.compilation.CompilationDto;
 import ru.practicum.dto.compilation.NewCompilationDto;
 import ru.practicum.dto.compilation.UpdateCompilationRequest;
@@ -26,6 +27,7 @@
 import java.util.stream.Collectors;
 
 @Service
+@Transactional
 @RequiredArgsConstructor
 public class CompilationServiceImpl implements CompilationService {
     private final CompilationStorage compilationStorage;
@@ -50,7 +52,7 @@ public ResponseEntity<Void> delete(Long compilationId) {
     }
 
     @Override
-    public CompilationDto update(UpdateCompilationRequest updateCompilation,
+    public ResponseEntity<CompilationDto> update(UpdateCompilationRequest updateCompilation,
                                  Long compilationId) {
         Compilation compilation = compilationStorage.findById(compilationId)
                 .orElseThrow(() -> new NotFoundException("Compilation: Список событий с id=" + compilationId +
@@ -65,10 +67,11 @@ public CompilationDto update(UpdateCompilationRequest updateCompilation,
         List<Event> events = eventStorage.findAllByIdIn(savedCompilation.getEvents());
         CompilationDto compilationDto = compilationMapper.toDto(savedCompilation);
         compilationDto.setEvents(events.stream().map(eventMapper::toShortDto).collect(Collectors.toList()));
-        return compilationDto;
+        return new ResponseEntity<>(compilationDto, HttpStatus.OK);
     }
 
     @Override
+    @Transactional(readOnly = true)
     public List<CompilationDto> get(Boolean pinned, int from, int size) {
         PageRequest page = PageRequest.of(from > 0 ? from / size : 0, size);
         Page<Compilation> compilations;
diff --git a/ewm-service/src/main/java/ru/practicum/service/impl/EventServiceImpl.java b/ewm-service/src/main/java/ru/practicum/service/impl/EventServiceImpl.java
index a0edf8c..c2adcfa 100644
--- a/ewm-service/src/main/java/ru/practicum/service/impl/EventServiceImpl.java
+++ b/ewm-service/src/main/java/ru/practicum/service/impl/EventServiceImpl.java
@@ -9,6 +9,7 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import ru.practicum.StatsClient;
 import ru.practicum.ViewStats;
 import ru.practicum.dto.Location;
@@ -26,7 +27,8 @@
 import ru.practicum.mapper.RequestMapper;
 import ru.practicum.model.Category;
 import ru.practicum.model.LocationDb;
-import ru.practicum.model.User;
+import ru.practicum.model.user.ShowEventsState;
+import ru.practicum.model.user.User;
 import ru.practicum.model.event.*;
 import ru.practicum.model.request.Request;
 import ru.practicum.model.request.RequestStatus;
@@ -42,6 +44,7 @@
 
 @Slf4j
 @Service
+@Transactional
 @RequiredArgsConstructor
 public class EventServiceImpl implements EventService {
     private final EventStorage eventStorage;
@@ -83,6 +86,7 @@ public ResponseEntity<EventFullDto> add(NewEventDto newEventDto, Long userId) {
     }
 
     @Override
+    @Transactional(readOnly = true)
     public List<EventFullDto> get(Long userId, int from, int size) {
         User initiator = userStorage.findById(userId)
                 .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + userId + " не найден"));
@@ -133,6 +137,7 @@ public EventFullDto userUpdate(UpdateEventUserRequestDto updateEventDto, Long us
     }
 
     @Override
+    @Transactional(readOnly = true)
     public List<ParticipationRequestDto> getInitiatorRequests(Long userId, Long eventId) {
         User initiator = userStorage.findById(userId)
                 .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + userId + " не найден"));
@@ -161,6 +166,7 @@ public EventRequestStatusUpdateResult changeRequestStatus(Long userId,
         int limit = event.getParticipantLimit();
         List<Request> confirmedRequests = new ArrayList<>();
         List<Request> rejectedRequests = new ArrayList<>();
+        List<Long> userIds = new ArrayList<>();
         if (event.getParticipantLimit() == 0 || !event.getRequestModeration()) {
             for (Request request : requests) {
                 if (!request.getStatus().equals(RequestStatus.PENDING)) {
@@ -171,7 +177,8 @@ public EventRequestStatusUpdateResult changeRequestStatus(Long userId,
                         amountConfirmedRequests,
                         confirmedRequests,
                         rejectedRequests,
-                        request);
+                        request,
+                        userIds);
             }
         }
         for (Request request : requests) {
@@ -184,11 +191,25 @@ public EventRequestStatusUpdateResult changeRequestStatus(Long userId,
                         amountConfirmedRequests,
                         confirmedRequests,
                         rejectedRequests,
-                        request);
+                        request,
+                        userIds);
             } else {
                 rejectedRequests.add(request);
             }
         }
+        List<User> users = userStorage.findAllById(userIds);
+        if (!users.isEmpty()) {
+            List<User> usersForSave = new ArrayList<>();
+            for (User user : users) {
+                if (user.getShowEventsState().equals(ShowEventsState.ALL)) {
+                    List<Long> events = user.getUserEvents().isEmpty() ? new ArrayList<>() : user.getUserEvents();
+                    events.add(event.getId());
+                    user.setUserEvents(events);
+                    usersForSave.add(user);
+                }
+            }
+            userStorage.saveAll(usersForSave);
+        }
         event.setConfirmedRequests(amountConfirmedRequests);
         eventStorage.save(event);
         requestStorage.saveAll(rejectedRequests);
@@ -203,11 +224,13 @@ private int setRequestsStatus(EventRequestStatusUpdateRequest incomingRequests,
                                   int amountConfirmedRequests,
                                   List<Request> confirmedRequests,
                                   List<Request> rejectedRequests,
-                                  Request request) {
+                                  Request request,
+                                  List<Long> users) {
         if (incomingRequests.getStatus().equals(RequestStatus.CONFIRMED)) {
             request.setStatus(RequestStatus.CONFIRMED);
             confirmedRequests.add(request);
             ++amountConfirmedRequests;
+            users.add(request.getRequester().getId());
         } else {
             request.setStatus(RequestStatus.REJECTED);
             rejectedRequests.add(request);
@@ -217,6 +240,7 @@ private int setRequestsStatus(EventRequestStatusUpdateRequest incomingRequests,
 
     //Admin
     @Override
+    @Transactional(readOnly = true)
     public List<EventFullDto> getWithFilters(List<Long> users,
                                              List<EventState> states,
                                              List<Long> categories,
@@ -228,10 +252,16 @@ public List<EventFullDto> getWithFilters(List<Long> users,
         GetAdminEvent getAdminEvent = new GetAdminEvent(users, states, categories, rangeStart, rangeEnd);
         BooleanExpression conditions = makeAdminEventQueryFilters(getAdminEvent);
         Page<Event> events = eventStorage.findAll(conditions, page);
-        return events.isEmpty() ? new ArrayList<>() : setCategoriesAndReturnList(events.toList());
+        return events.isEmpty() ? new ArrayList<>() : setCategoriesAndReturnList(events.toList(),
+                categoryStorage,
+                categoryMapper,
+                eventMapper);
     }
 
-    private List<EventFullDto> setCategoriesAndReturnList(List<Event> events) {
+    protected static List<EventFullDto> setCategoriesAndReturnList(List<Event> events,
+                                                                   CategoryStorage categoryStorage,
+                                                                   CategoryMapper categoryMapper,
+                                                                   EventMapper eventMapper) {
         List<Long> categoriesId = new ArrayList<>();
         for (Event event : events) {
             categoriesId.add(event.getCategory());
@@ -244,6 +274,7 @@ private List<EventFullDto> setCategoriesAndReturnList(List<Event> events) {
                 .collect(Collectors.toList());
     }
 
+
     @Override
     public EventFullDto adminUpdate(UpdateEventAdminRequestDto updateEventDto, Long eventId) {
         if (updateEventDto.getEventDate() != null) {
@@ -318,6 +349,7 @@ private void setEventFields(Event event,
 
     //Public
     @Override
+    @Transactional(readOnly = true)
     public List<EventFullDto> userGetByFilters(String text,
                                                List<Long> categories,
                                                Boolean paid,
@@ -406,7 +438,7 @@ public static BooleanExpression makeUserEventQueryFilters(GetUserEvent getUserEv
         List<BooleanExpression> conditions = new ArrayList<>();
 
         if (getUserEvent.getText() != null) {
-            String textToSearch = getUserEvent.getText();;
+            String textToSearch = getUserEvent.getText();
             conditions.add(qEvent.title.containsIgnoreCase(textToSearch)
                     .or(qEvent.annotation.containsIgnoreCase(textToSearch))
                     .or(qEvent.description.containsIgnoreCase(textToSearch)));
diff --git a/ewm-service/src/main/java/ru/practicum/service/impl/FriendServiceImpl.java b/ewm-service/src/main/java/ru/practicum/service/impl/FriendServiceImpl.java
new file mode 100644
index 0000000..0407a95
--- /dev/null
+++ b/ewm-service/src/main/java/ru/practicum/service/impl/FriendServiceImpl.java
@@ -0,0 +1,116 @@
+package ru.practicum.service.impl;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import ru.practicum.dto.event.EventFullDto;
+import ru.practicum.exception.ConflictException;
+import ru.practicum.exception.NotFoundException;
+import ru.practicum.mapper.CategoryMapper;
+import ru.practicum.mapper.EventMapper;
+import ru.practicum.model.event.Event;
+import ru.practicum.model.request.Request;
+import ru.practicum.model.user.ShowEventsState;
+import ru.practicum.model.user.User;
+import ru.practicum.service.FriendService;
+import ru.practicum.storage.CategoryStorage;
+import ru.practicum.storage.EventStorage;
+import ru.practicum.storage.RequestStorage;
+import ru.practicum.storage.UserStorage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static ru.practicum.service.impl.EventServiceImpl.setCategoriesAndReturnList;
+
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class FriendServiceImpl implements FriendService {
+    private final UserStorage userStorage;
+    private final EventStorage eventStorage;
+    private final CategoryStorage categoryStorage;
+    private final CategoryMapper categoryMapper;
+    private final EventMapper eventMapper;
+    private final RequestStorage requestStorage;
+
+    @Override
+    public void add(Long userId, Long friendId) {
+        User user = userStorage.findById(userId)
+                .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + userId + " не найден"));
+        User friend = userStorage.findById(friendId)
+                .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + friendId + " не найден"));
+        List<Long> userFriends = user.getFriends().isEmpty() ? new ArrayList<>() : user.getFriends();
+        userFriends.add(friend.getId());
+        user.setFriends(userFriends);
+        userStorage.save(user);
+        List<Long> friendFriends = friend.getFriends().isEmpty() ? new ArrayList<>() : friend.getFriends();
+        friendFriends.add(user.getId());
+        friend.setFriends(friendFriends);
+        userStorage.save(friend);
+    }
+
+    @Override
+    @Transactional(readOnly = true)
+    public List<EventFullDto> getFriendParticipation(Long userId, Long friendId, int from, int size) {
+        User user = userStorage.findById(userId)
+                .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + userId + " не найден"));
+        User friend = userStorage.findById(friendId)
+                .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + friendId + " не найден"));
+        if (!friend.getFriends().contains(user.getId())) {
+            throw new ConflictException("Friends: Пользователь с id=" + userId
+                    + "нет в друзьях у пользователя c id=" + friend);
+        }
+        PageRequest page = PageRequest.of(from > 0 ? from / size : 0, size);
+        if (friend.getShowEventsState().equals(ShowEventsState.ALL) ||
+                friend.getShowEventsState().equals(ShowEventsState.CHOSEN)) {
+            Page<Event> events = eventStorage.findAllByIdIn(friend.getUserEvents(), page);
+            return events.isEmpty() ? new ArrayList<>() : setCategoriesAndReturnList(events.toList(),
+                    categoryStorage,
+                    categoryMapper,
+                    eventMapper);
+        } else {
+            throw new ConflictException("Friend: пользователь скрыл посещаемые события");
+        }
+    }
+
+    @Override
+    public void changeEventsVisibility(Long userId, ShowEventsState state, List<Long> events) {
+        User user = userStorage.findById(userId)
+                .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + userId + " не найден"));
+        if (state.equals(ShowEventsState.ALL)) {
+            List<Request> requests = requestStorage.findAllByRequesterAnsStatusConfirmed(user.getId());
+            if (!requests.isEmpty()) {
+                List<Long> userEvents = new ArrayList<>();
+                for (Request request : requests) {
+                    userEvents.add(request.getEvent().getId());
+                }
+                user.setShowEventsState(ShowEventsState.ALL);
+                user.setUserEvents(userEvents);
+                userStorage.save(user);
+            }
+        } else if (state.equals(ShowEventsState.CHOSEN)) {
+            if (events == null || events.isEmpty()) {
+                throw new ConflictException("User: При смене статуса на CHOSEN нужно выбрать события" +
+                        " для отображения друзьям");
+            }
+            List<Request> requests = requestStorage.findAllByEventId(events, user.getId());
+
+            if (requests.isEmpty()) {
+                throw new ConflictException("User: в списке событий не обнаружены указанные события: " + events);
+            }
+            if (requests.size() != events.size()) {
+                throw new ConflictException("User: Не все события из списка будут или были посещены пользователем");
+            }
+            user.setUserEvents(events);
+            user.setShowEventsState(ShowEventsState.CHOSEN);
+            userStorage.save(user);
+        } else {
+            user.setShowEventsState(ShowEventsState.HIDE);
+            user.setUserEvents(new ArrayList<>());
+            userStorage.save(user);
+        }
+    }
+}
\ No newline at end of file
diff --git a/ewm-service/src/main/java/ru/practicum/service/impl/RequestServiceImpl.java b/ewm-service/src/main/java/ru/practicum/service/impl/RequestServiceImpl.java
index dfd2f2c..0918c23 100644
--- a/ewm-service/src/main/java/ru/practicum/service/impl/RequestServiceImpl.java
+++ b/ewm-service/src/main/java/ru/practicum/service/impl/RequestServiceImpl.java
@@ -1,15 +1,16 @@
 package ru.practicum.service.impl;
 
 import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import ru.practicum.dto.request.ParticipationRequestDto;
 import ru.practicum.exception.ConflictException;
 import ru.practicum.exception.NotFoundException;
 import ru.practicum.mapper.RequestMapper;
-import ru.practicum.model.User;
+import ru.practicum.model.user.ShowEventsState;
+import ru.practicum.model.user.User;
 import ru.practicum.model.event.Event;
 import ru.practicum.model.event.EventState;
 import ru.practicum.model.request.Request;
@@ -25,7 +26,7 @@
 import java.util.stream.Collectors;
 
 @Service
-@Slf4j
+@Transactional
 @RequiredArgsConstructor
 public class RequestServiceImpl implements RequestService {
     private final RequestStorage requestStorage;
@@ -62,6 +63,12 @@ public ResponseEntity<ParticipationRequestDto> add(Long userId, Long eventId) {
         request.setRequester(requester);
         if (event.getParticipantLimit() == 0 || !event.getRequestModeration()) {
             request.setStatus(RequestStatus.CONFIRMED);
+            if (requester.getShowEventsState().equals(ShowEventsState.ALL)) {
+                List<Long> events = requester.getUserEvents().isEmpty() ? new ArrayList<>() : requester.getUserEvents();
+                events.add(event.getId());
+                requester.setUserEvents(events);
+                userStorage.save(requester);
+            }
         } else {
             request.setStatus(RequestStatus.PENDING);
         }
@@ -73,6 +80,7 @@ public ResponseEntity<ParticipationRequestDto> add(Long userId, Long eventId) {
     }
 
     @Override
+    @Transactional(readOnly = true)
     public List<ParticipationRequestDto> get(Long userId) {
         User requester = userStorage.findById(userId)
                 .orElseThrow(() -> new NotFoundException("User: Пользователь с id=" + userId + " не найден"));
diff --git a/ewm-service/src/main/java/ru/practicum/service/impl/UserServiceImpl.java b/ewm-service/src/main/java/ru/practicum/service/impl/UserServiceImpl.java
index 18bf9a2..3639f57 100644
--- a/ewm-service/src/main/java/ru/practicum/service/impl/UserServiceImpl.java
+++ b/ewm-service/src/main/java/ru/practicum/service/impl/UserServiceImpl.java
@@ -6,9 +6,11 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import ru.practicum.dto.user.UserDto;
 import ru.practicum.mapper.UserMapper;
-import ru.practicum.model.User;
+import ru.practicum.model.user.ShowEventsState;
+import ru.practicum.model.user.User;
 import ru.practicum.service.UserService;
 import ru.practicum.storage.UserStorage;
 
@@ -16,6 +18,7 @@
 import java.util.List;
 
 @Service
+@Transactional
 @RequiredArgsConstructor
 public class UserServiceImpl implements UserService {
     private final UserStorage userStorage;
@@ -23,17 +26,21 @@ public class UserServiceImpl implements UserService {
 
     public ResponseEntity<UserDto> add(UserDto userDto) {
         User user = userStorage.save(userMapper.toEntity(userDto));
+        user.setShowEventsState(ShowEventsState.ALL);
         return new ResponseEntity<>(userMapper.toDto(user), HttpStatus.CREATED);
     }
 
     @Override
-    public List<UserDto> get(List<Long> ids, int from, int size) {
+    @Transactional(readOnly = true)
+    public ResponseEntity<List<UserDto>> get(List<Long> ids, int from, int size) {
         PageRequest page = PageRequest.of(from > 0 ? from / size : 0, size);
         if (ids.isEmpty()) {
-            return userStorage.findAll(page).map(userMapper::toDto).getContent();
+            List<UserDto> users = userStorage.findAll(page).map(userMapper::toDto).getContent();
+            return new ResponseEntity<>(users, HttpStatus.OK);
         } else {
             Page<User> users = userStorage.findAllByIdIn(ids, page);
-            return users.isEmpty() ? new ArrayList<>() : users.map(userMapper::toDto).getContent();
+            return users.isEmpty() ? new ResponseEntity<>(new ArrayList<>(), HttpStatus.OK) :
+                    new ResponseEntity<>(users.map(userMapper::toDto).getContent(), HttpStatus.OK);
         }
     }
 
diff --git a/ewm-service/src/main/java/ru/practicum/storage/EventStorage.java b/ewm-service/src/main/java/ru/practicum/storage/EventStorage.java
index 29cb589..8170742 100644
--- a/ewm-service/src/main/java/ru/practicum/storage/EventStorage.java
+++ b/ewm-service/src/main/java/ru/practicum/storage/EventStorage.java
@@ -5,7 +5,7 @@
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.querydsl.QuerydslPredicateExecutor;
-import ru.practicum.model.User;
+import ru.practicum.model.user.User;
 import ru.practicum.model.event.Event;
 
 import java.util.List;
@@ -21,4 +21,6 @@ public interface EventStorage extends JpaRepository<Event, Long>, QuerydslPredic
     Optional<Event> findPublishedEventById(Long eventId);
 
     List<Event> findAllByIdIn(List<Long> id);
+
+    Page<Event> findAllByIdIn(List<Long> id, Pageable pageable);
 }
diff --git a/ewm-service/src/main/java/ru/practicum/storage/RequestStorage.java b/ewm-service/src/main/java/ru/practicum/storage/RequestStorage.java
index 079b443..fbaa7f8 100644
--- a/ewm-service/src/main/java/ru/practicum/storage/RequestStorage.java
+++ b/ewm-service/src/main/java/ru/practicum/storage/RequestStorage.java
@@ -2,7 +2,7 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
-import ru.practicum.model.User;
+import ru.practicum.model.user.User;
 import ru.practicum.model.event.Event;
 import ru.practicum.model.request.Request;
 
@@ -22,4 +22,14 @@ public interface RequestStorage extends JpaRepository<Request, Long>  {
             "join r.event as e " +
             "where r.id in ?1 and e.id = ?2 and e.initiator.id = ?3")
     List<Request> findAllByEventAndRequesterIn(List<Long> requestIds, Long eventId, Long initiatorId);
+
+    @Query("select r from Request r " +
+            "join r.requester as u " +
+            "where u.id = ?1 and r.status = 'CONFIRMED'")
+    List<Request> findAllByRequesterAnsStatusConfirmed(Long requesterId);
+
+    @Query("select r from Request r " +
+            "join r.event as e " +
+            "where e.id in ?1 and r.requester.id = ?2")
+    List<Request> findAllByEventId(List<Long> eventIds, Long requesterId);
 }
diff --git a/ewm-service/src/main/java/ru/practicum/storage/UserStorage.java b/ewm-service/src/main/java/ru/practicum/storage/UserStorage.java
index 9567b6f..1814b10 100644
--- a/ewm-service/src/main/java/ru/practicum/storage/UserStorage.java
+++ b/ewm-service/src/main/java/ru/practicum/storage/UserStorage.java
@@ -3,7 +3,7 @@
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.jpa.repository.JpaRepository;
-import ru.practicum.model.User;
+import ru.practicum.model.user.User;
 
 import java.util.List;
 
diff --git a/ewm-service/src/main/java/ru/practicum/util/ApiPathConstants.java b/ewm-service/src/main/java/ru/practicum/util/ApiPathConstants.java
index e5e1290..4a5fdbe 100644
--- a/ewm-service/src/main/java/ru/practicum/util/ApiPathConstants.java
+++ b/ewm-service/src/main/java/ru/practicum/util/ApiPathConstants.java
@@ -14,6 +14,8 @@ public class ApiPathConstants {
     public static final String REQUEST_ID_PATH = "{requestId}";
     public static final String CANCEL_PATH = "cancel";
     public static final String COMPILATIONS_PATH = "compilations";
+    public static final String FRIENDS_PATH = "friends";
+    public static final String FRIEND_ID = "{friendId}";
     public static final String ID_CANCEL_PATH = REQUEST_ID_PATH + "/" + CANCEL_PATH;
     public static final String ADMIN_USERS_PATH = ADMIN_PATH + "/" + USERS_PATH;
     public static final String PRIVATE_USERS_EVENTS = USERS_PATH + "/" + BY_ID_PATH + "/" + EVENTS_PATH;
@@ -22,4 +24,5 @@ public class ApiPathConstants {
     public static final String ADMIN_EVENTS_PATH = ADMIN_PATH + "/" + EVENTS_PATH;
     public static final String USER_ID_REQUEST_PATH = USERS_PATH + "/" + BY_ID_PATH + "/" + REQUEST_PATH;
     public static final String ADMIN_COMPILATIONS_PATH = ADMIN_PATH + "/" + COMPILATIONS_PATH;
+    public static final String USER_ID_FRIEND_PATH = USERS_PATH + "/" + BY_ID_PATH + "/" + FRIENDS_PATH;
 }
diff --git a/ewm-service/src/main/resources/schema.sql b/ewm-service/src/main/resources/schema.sql
index 180381e..4723042 100644
--- a/ewm-service/src/main/resources/schema.sql
+++ b/ewm-service/src/main/resources/schema.sql
@@ -1,12 +1,23 @@
 CREATE TABLE IF NOT EXISTS users
 (
-    user_id BIGINT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
-    name    VARCHAR(250)                            NOT NULL,
-    email   VARCHAR(254)                            NOT NULL,
+    user_id          BIGINT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
+    name             VARCHAR(250)                            NOT NULL,
+    email            VARCHAR(254)                            NOT NULL,
+    show_event_state VARCHAR(20),
     CONSTRAINT pk_user PRIMARY KEY (user_id),
     CONSTRAINT UQ_USER_EMAIL UNIQUE (email)
 );
 
+CREATE TABLE IF NOT EXISTS friends
+(
+    user_id   BIGINT,
+    friend_id BIGINT,
+    CONSTRAINT fk_user_friend
+        FOREIGN KEY (user_id) REFERENCES USERS (user_id),
+    CONSTRAINT fk_friend_user
+        FOREIGN KEY (friend_id) REFERENCES USERS (user_id)
+);
+
 CREATE TABLE IF NOT EXISTS categories
 (
     category_id BIGINT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
@@ -50,6 +61,16 @@ CREATE TABLE IF NOT EXISTS events
         FOREIGN KEY (category) REFERENCES categories (category_id)
 );
 
+CREATE TABLE IF NOT EXISTS users_events
+(
+    user_id   BIGINT,
+    event_id BIGINT,
+    CONSTRAINT fk_user_event_user
+        FOREIGN KEY (user_id) REFERENCES USERS (user_id),
+    CONSTRAINT fk_user_event_event
+        FOREIGN KEY (event_id) REFERENCES events (event_id)
+);
+
 CREATE TABLE IF NOT EXISTS requests
 (
     request_id BIGINT GENERATED BY DEFAULT AS IDENTITY NOT NULL,
diff --git a/postman/feature.json b/postman/feature.json
new file mode 100644
index 0000000..476c3ce
--- /dev/null
+++ b/postman/feature.json
@@ -0,0 +1,994 @@
+{
+	"info": {
+		"_postman_id": "4954e083-8ee3-4aef-8230-1e91c0e31521",
+		"name": "feature",
+		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
+	},
+	"item": [
+		{
+			"name": "Редактирование статуса евента с id 1",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"annotation\": \"Facere molestiae facere. Non omnis occaecati eos omnis voluptas non dicta temporibus. Tenetur aut amet excepturi amet molestias voluptas repudiandae et. Officia qui tenetur inventore iure suscipit facilis voluptatem.\",\r\n    \"category\": 1,\r\n    \"description\": \"Et velit est iste quis sunt eveniet est. Enim aut eius beatae. Nihil provident omnis et reiciendis voluptas consequuntur. Quae quia maiores nihil delectus tenetur nam minus quibusdam facere.\\n \\rVoluptates eum sit odio corporis repellat. In occaecati inventore labore sed nam voluptatem commodi provident quis. Quidem expedita neque. Et quia odio ea quas minima officia eveniet.\\n \\rVelit doloremque eveniet tempore cum consequatur ut consequatur et ut. Aut ut nostrum aut rerum voluptatum aliquam quo voluptas. Magnam sint minima et molestias sint minima placeat dolorem vel.\",\r\n    \"eventDate\": \"2025-07-19 04:41:06\",\r\n    \"location\": {\r\n        \"lat\": -88.362,\r\n        \"lon\": -123.946\r\n    },\r\n    \"paid\": \"true\",\r\n    \"participantLimit\": \"596\",\r\n    \"requestModeration\": \"true\",\r\n    \"title\": \"Blanditiis tenetur esse tempore voluptatibus quidem quis itaque.\",\r\n    \"stateAction\": \"PUBLISH_EVENT\"\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8080/admin/events/1",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"admin",
+						"events",
+						"1"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Редактирование статуса евента с id 4",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"annotation\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\",\r\n    \"category\": 1,\r\n    \"description\": \"aa aa aaa aaaaa aaaaa aaaa a\",\r\n    \"eventDate\": \"2025-07-19 04:41:06\",\r\n    \"location\": {\r\n        \"lat\": -99.362,\r\n        \"lon\": -111.946\r\n    },\r\n    \"paid\": \"true\",\r\n    \"participantLimit\": \"0\",\r\n    \"requestModeration\": \"true\",\r\n    \"title\": \"a.a.a.a.a.a.aa.a.a.a.a.\",\r\n    \"stateAction\": \"PUBLISH_EVENT\"\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8080/admin/events/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"admin",
+						"events",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Редактирование статуса евента с id 3",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"annotation\": \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\",\r\n    \"category\": 1,\r\n    \"description\": \"bbbbbbbbbbb bbbbbbbbbb bbbbbbbb bbbbb bbb bb\",\r\n    \"eventDate\": \"2025-07-19 04:41:06\",\r\n    \"location\": {\r\n        \"lat\": -33.362,\r\n        \"lon\": -22.946\r\n    },\r\n    \"paid\": \"true\",\r\n    \"participantLimit\": \"596\",\r\n    \"requestModeration\": \"false\",\r\n    \"title\": \"b!<!<!<!<!<!<!<!<!<!<!<!<!<!<!<<!\",\r\n    \"stateAction\": \"PUBLISH_EVENT\"\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8080/admin/events/3",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"admin",
+						"events",
+						"3"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Запрос дружбы 4 и 5 пользователя",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "POST",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должно быть пусто",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Добавление запроса на участие пользователем 4 на событие 2 где participantLimit: 0",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(201);   \r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "POST",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/requests?eventId=4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"requests"
+					],
+					"query": [
+						{
+							"key": "eventId",
+							"value": "4"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должно быть одно",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Добавление запроса на участие пользователем 4 на событие 3 где requestModeration: \"false\"",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(201);   \r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "POST",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/requests?eventId=3",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"requests"
+					],
+					"query": [
+						{
+							"key": "eventId",
+							"value": "3"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должно быть два",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Добавление запроса на участие пользователем 4 на событие 1 с модерацией",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(201);   \r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "POST",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/requests?eventId=1",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"requests"
+					],
+					"query": [
+						{
+							"key": "eventId",
+							"value": "1"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должно быть два",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение статуса заявки инициатором события",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.be.ok;    \r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"body": {
+					"mode": "raw",
+					"raw": "{\r\n    \"requestIds\": [\r\n        16\r\n    ],\r\n    \"status\": \"CONFIRMED\"\r\n}",
+					"options": {
+						"raw": {
+							"language": "json"
+						}
+					}
+				},
+				"url": {
+					"raw": "http://localhost:8080/users/2/events/1/requests",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"2",
+						"events",
+						"1",
+						"requests"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должно быть три",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение пользователем 4 видимости своих событий на CHOSEN",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 200\", function () {\r",
+							"    pm.response.to.have.status(200);   \r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/friends?state=CHOSEN&events=1&events=4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"friends"
+					],
+					"query": [
+						{
+							"key": "state",
+							"value": "CHOSEN"
+						},
+						{
+							"key": "events",
+							"value": "1"
+						},
+						{
+							"key": "events",
+							"value": "4"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должно быть с id 2 и 1",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение пользователем 4 видимости своих событий на HIDE",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 200\", function () {\r",
+							"    pm.response.to.have.status(200);   \r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/friends?state=HIDE",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"friends"
+					],
+					"query": [
+						{
+							"key": "state",
+							"value": "HIDE"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должна быть ошибка 409",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 409\", function () {\r",
+							"    pm.response.to.have.status(409);\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение пользователем 4 видимости своих событий на ALL",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 200\", function () {\r",
+							"    pm.response.to.have.status(200);   \r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/friends?state=ALL",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"friends"
+					],
+					"query": [
+						{
+							"key": "state",
+							"value": "ALL"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 4 пользователь должны быть все три события",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"const body = pm.response.json();\r",
+							"\r",
+							"pm.test(\"Ответ должен содержать код статуса 200 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(200);\r",
+							"    pm.expect(body).is.an('array');\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/4",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"4"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Просмотр 5 пользователем событий, которые посетит 1 пользователь должна быть ошибка 409",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 409\", function () {\r",
+							"    pm.response.to.have.status(409);\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "GET",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends/1",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends",
+						"1"
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение пользователем 4 видимости своих событий на CHOSEN без списка событий",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 409\", function () {\r",
+							"    pm.response.to.have.status(409);   \r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/4/friends?state=CHOSEN",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"4",
+						"friends"
+					],
+					"query": [
+						{
+							"key": "state",
+							"value": "CHOSEN"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение пользователем 4 видимости своих событий на CHOSEN с отсутствутсвующими событиями в списке посещенных",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 409\", function () {\r",
+							"    pm.response.to.have.status(409);   \r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends?state=CHOSEN&events=4&events=3",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends"
+					],
+					"query": [
+						{
+							"key": "state",
+							"value": "CHOSEN"
+						},
+						{
+							"key": "events",
+							"value": "4"
+						},
+						{
+							"key": "events",
+							"value": "3"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Добавление запроса на участие пользователем 5 на событие 2 где participantLimit: 0",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 201 и данные в формате json\", function () {\r",
+							"    pm.response.to.have.status(201);   \r",
+							"    pm.response.to.be.withBody;\r",
+							"    pm.response.to.be.json;\r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "POST",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/requests?eventId=2",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"requests"
+					],
+					"query": [
+						{
+							"key": "eventId",
+							"value": "2"
+						}
+					]
+				}
+			},
+			"response": []
+		},
+		{
+			"name": "Изменение пользователем 5 видимости своих событий на CHOSEN с не всеми посещенными событиями",
+			"event": [
+				{
+					"listen": "test",
+					"script": {
+						"exec": [
+							"pm.test(\"Ответ должен содержать код статуса 409\", function () {\r",
+							"    pm.response.to.have.status(409);   \r",
+							"});"
+						],
+						"type": "text/javascript"
+					}
+				}
+			],
+			"request": {
+				"method": "PATCH",
+				"header": [],
+				"url": {
+					"raw": "http://localhost:8080/users/5/friends?state=CHOSEN&events=4&events=3",
+					"protocol": "http",
+					"host": [
+						"localhost"
+					],
+					"port": "8080",
+					"path": [
+						"users",
+						"5",
+						"friends"
+					],
+					"query": [
+						{
+							"key": "state",
+							"value": "CHOSEN"
+						},
+						{
+							"key": "events",
+							"value": "4"
+						},
+						{
+							"key": "events",
+							"value": "3"
+						}
+					]
+				}
+			},
+			"response": []
+		}
+	]
+}
\ No newline at end of file
diff --git a/stats/stats-server/src/main/java/ru/practicum/controller/ErrorHandler.java b/stats/stats-server/src/main/java/ru/practicum/controller/ErrorHandler.java
index 5ccaa70..95b59df 100644
--- a/stats/stats-server/src/main/java/ru/practicum/controller/ErrorHandler.java
+++ b/stats/stats-server/src/main/java/ru/practicum/controller/ErrorHandler.java
@@ -1,5 +1,6 @@
 package ru.practicum.controller;
 
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -11,11 +12,13 @@
 import java.time.format.DateTimeFormatter;
 import java.util.Arrays;
 
+@Slf4j
 @RestControllerAdvice
 public class ErrorHandler {
     @ExceptionHandler
     @ResponseStatus(HttpStatus.BAD_REQUEST)
     public ApiError handleValidationException(final ValidationException e) {
+        log.debug("Получен статус 400 BAD REQUEST {}", e.getMessage(), e);
         return new ApiError(e.getMessage(),
                 HttpStatus.BAD_REQUEST.toString(),
                 Arrays.toString(e.getStackTrace()),