✨ Feature/#169 - 6.5 댓글 작성 API 구현 (#170)

http/suggestion/SuggestionControllerHttpRequest.http

@@ -36,4 +36,14 @@ Content-Type: application/json
 Content-Disposition: form-data; name="file"; filename="image.png"
 Content-Type: image/png
 
-< /Users/kyeom/Desktop/1_banner.png
+< /Users/kyeom/Desktop/1_banner.png
+
+### 6.5 댓글 등록하기
+// @no-log
+POST {{host_url}}/api/v1/boards/{{suggestion.API_6_5.id}}/comments
+Content-Type: application/json
+Authorization: Bearer {{access_token}}
+
+{
+    "content": "{{suggestion.API_6_5.content}}"
+}

src/main/java/com/daon/onjung/suggestion/application/controller/command/SuggestionCommandV1Controller.java

@@ -0,0 +1,44 @@
+package com.daon.onjung.suggestion.application.controller.command;
+
+import com.daon.onjung.core.annotation.security.AccountID;
+import com.daon.onjung.core.dto.ResponseDto;
+import com.daon.onjung.suggestion.application.dto.request.CreateBoardRequestDto;
+import com.daon.onjung.suggestion.application.dto.request.CreateCommentRequestDto;
+import com.daon.onjung.suggestion.application.usecase.CreateBoardUseCase;
+import com.daon.onjung.suggestion.application.usecase.CreateCommentUseCase;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.UUID;
+
+@RestController
+@RequiredArgsConstructor
+public class SuggestionCommandV1Controller {
+
+    private final CreateBoardUseCase createBoardUseCase;
+    private final CreateCommentUseCase createCommentUseCase;
+
+    @PostMapping(value = "/api/v1/boards", consumes = {MediaType.MULTIPART_FORM_DATA_VALUE, MediaType.APPLICATION_JSON_VALUE})
+    public ResponseDto<Void> createBoard(
+            @AccountID UUID accountId,
+            @RequestPart(value = "file", required = false) MultipartFile file,
+            @RequestPart("body") @Valid CreateBoardRequestDto requestDto
+    ) {
+        createBoardUseCase.execute(accountId, file, requestDto);
+        return ResponseDto.created(null);
+    }
+
+    @PostMapping("/api/v1/boards/{id}/comments")
+    public ResponseDto<Void> createComment(
+            @AccountID UUID accountId,
+            @PathVariable Long id,
+            @RequestBody @Valid CreateCommentRequestDto requestDto
+    ) {
+        createCommentUseCase.execute(accountId, id, requestDto);
+        return ResponseDto.created(null);
+    }
+
+}

src/main/java/com/daon/onjung/suggestion/application/dto/request/CreateCommentRequestDto.java

@@ -0,0 +1,9 @@
+package com.daon.onjung.suggestion.application.dto.request;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public record CreateCommentRequestDto(
+        @JsonProperty("content")
+        String content
+) {
+}

src/main/java/com/daon/onjung/suggestion/application/service/CreateCommentService.java

@@ -0,0 +1,50 @@
+package com.daon.onjung.suggestion.application.service;
+
+import com.daon.onjung.account.domain.User;
+import com.daon.onjung.account.repository.mysql.UserRepository;
+import com.daon.onjung.core.exception.error.ErrorCode;
+import com.daon.onjung.core.exception.type.CommonException;
+import com.daon.onjung.suggestion.application.dto.request.CreateCommentRequestDto;
+import com.daon.onjung.suggestion.application.usecase.CreateCommentUseCase;
+import com.daon.onjung.suggestion.domain.Board;
+import com.daon.onjung.suggestion.domain.Comment;
+import com.daon.onjung.suggestion.domain.service.CommentService;
+import com.daon.onjung.suggestion.repository.mysql.BoardRepository;
+import com.daon.onjung.suggestion.repository.mysql.CommentRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.UUID;
+
+@Service
+@RequiredArgsConstructor
+public class CreateCommentService implements CreateCommentUseCase {
+
+    private final UserRepository userRepository;
+    private final BoardRepository boardRepository;
+    private final CommentRepository commentRepository;
+
+    private final CommentService commentService;
+
+    @Override
+    @Transactional
+    public void execute(UUID accountId, Long boardId, CreateCommentRequestDto requestDto) {
+
+        // 유저 조회
+        User user = userRepository.findById(accountId)
+                .orElseThrow(() -> new CommonException(ErrorCode.NOT_FOUND_RESOURCE));
+
+        // 게시글 조회
+        Board board = boardRepository.findById(boardId)
+                .orElseThrow(() -> new CommonException(ErrorCode.NOT_FOUND_RESOURCE));
+
+        // 댓글 생성
+        Comment comment = commentService.createComment(
+                requestDto.content(),
+                user,
+                board
+        );
+        commentRepository.save(comment);
+    }
+}

src/main/java/com/daon/onjung/suggestion/application/usecase/CreateCommentUseCase.java

@@ -0,0 +1,11 @@
+package com.daon.onjung.suggestion.application.usecase;
+
+import com.daon.onjung.core.annotation.bean.UseCase;
+import com.daon.onjung.suggestion.application.dto.request.CreateCommentRequestDto;
+
+import java.util.UUID;
+
+@UseCase
+public interface CreateCommentUseCase {
+    void execute(UUID accountId, Long boardId, CreateCommentRequestDto requestDto);
+}

src/main/java/com/daon/onjung/suggestion/domain/service/CommentService.java

@@ -1,7 +1,22 @@
 package com.daon.onjung.suggestion.domain.service;
 
+import com.daon.onjung.account.domain.User;
+import com.daon.onjung.suggestion.domain.Board;
+import com.daon.onjung.suggestion.domain.Comment;
 import org.springframework.stereotype.Service;
 
 @Service
 public class CommentService {
+
+    public Comment createComment(
+        String content,
+        User user,
+        Board board
+    ) {
+        return Comment.builder()
+            .content(content)
+            .user(user)
+            .board(board)
+            .build();
+    }
 }