Feat: 게시글 조회 api 구현 (#57)

* #54 - refactor: 단순 패키지 위치 변경 * #54 - feat: 게시글 id로 게시글 조회 구현 * #54 - test: 게시글 조회 테스트 구현
BookitList · Jan 31, 2024 · 12f20e5 · 12f20e5
1 parent 1495c2e
commit 12f20e5
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Showing 7 changed files with 98 additions and 10 deletions.
diff --git a/src/main/java/cotato/bookitlist/post/controller/PostController.java b/src/main/java/cotato/bookitlist/post/controller/PostController.java
@@ -1,8 +1,9 @@
 package cotato.bookitlist.post.controller;
 
 import cotato.bookitlist.config.security.jwt.AuthDetails;
-import cotato.bookitlist.post.dto.PostRegisterRequest;
-import cotato.bookitlist.post.dto.PostUpdateRequest;
+import cotato.bookitlist.post.dto.requeset.PostRegisterRequest;
+import cotato.bookitlist.post.dto.requeset.PostUpdateRequest;
+import cotato.bookitlist.post.dto.response.PostResponse;
 import cotato.bookitlist.post.service.PostService;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
@@ -47,4 +48,11 @@ public ResponseEntity<Void> updatePost(
         return ResponseEntity.ok().build();
     }
 
+    @GetMapping("/{post-id}")
+    public ResponseEntity<PostResponse> getPost(
+            @PathVariable("post-id") Long postId
+    ) {
+        return ResponseEntity.ok(PostResponse.from(postService.getPost(postId)));
+    }
+
 }
diff --git a/src/main/java/cotato/bookitlist/post/dto/PostDto.java b/src/main/java/cotato/bookitlist/post/dto/PostDto.java
@@ -0,0 +1,26 @@
+package cotato.bookitlist.post.dto;
+
+import cotato.bookitlist.post.domain.Post;
+
+public record PostDto(
+        Long postId,
+        Long memberId,
+        Long bookId,
+        String title,
+        String content,
+        int likeCount,
+        int viewCount
+) {
+
+    public static PostDto from(Post entity) {
+        return new PostDto(
+                entity.getId(),
+                entity.getMember().getId(),
+                entity.getBook().getId(),
+                entity.getTitle(),
+                entity.getContent(),
+                entity.getLikeCount(),
+                entity.getViewCount()
+        );
+    }
+}
diff --git a/...kitlist/post/dto/PostRegisterRequest.java → ...ost/dto/requeset/PostRegisterRequest.java b/...kitlist/post/dto/PostRegisterRequest.java → ...ost/dto/requeset/PostRegisterRequest.java
@@ -1,4 +1,4 @@
-package cotato.bookitlist.post.dto;
+package cotato.bookitlist.post.dto.requeset;
 
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;

diff --git a/...ookitlist/post/dto/PostUpdateRequest.java → .../post/dto/requeset/PostUpdateRequest.java b/...ookitlist/post/dto/PostUpdateRequest.java → .../post/dto/requeset/PostUpdateRequest.java
@@ -1,4 +1,4 @@
-package cotato.bookitlist.post.dto;
+package cotato.bookitlist.post.dto.requeset;
 
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.Size;

diff --git a/src/main/java/cotato/bookitlist/post/dto/response/PostResponse.java b/src/main/java/cotato/bookitlist/post/dto/response/PostResponse.java
@@ -0,0 +1,26 @@
+package cotato.bookitlist.post.dto.response;
+
+import cotato.bookitlist.post.dto.PostDto;
+
+public record PostResponse(
+        Long postId,
+        Long memberId,
+        Long bookId,
+        String title,
+        String content,
+        int likeCount,
+        int viewCount
+) {
+
+    public static PostResponse from(PostDto dto) {
+        return new PostResponse(
+                dto.postId(),
+                dto.memberId(),
+                dto.bookId(),
+                dto.title(),
+                dto.content(),
+                dto.likeCount(),
+                dto.viewCount()
+        );
+    }
+}
diff --git a/src/main/java/cotato/bookitlist/post/service/PostService.java b/src/main/java/cotato/bookitlist/post/service/PostService.java
@@ -5,8 +5,9 @@
 import cotato.bookitlist.member.domain.Member;
 import cotato.bookitlist.member.repository.MemberRepository;
 import cotato.bookitlist.post.domain.Post;
-import cotato.bookitlist.post.dto.PostRegisterRequest;
-import cotato.bookitlist.post.dto.PostUpdateRequest;
+import cotato.bookitlist.post.dto.PostDto;
+import cotato.bookitlist.post.dto.requeset.PostRegisterRequest;
+import cotato.bookitlist.post.dto.requeset.PostUpdateRequest;
 import cotato.bookitlist.post.repository.PostRepository;
 import jakarta.persistence.EntityNotFoundException;
 import lombok.RequiredArgsConstructor;
@@ -41,4 +42,9 @@ public void updatePost(Long postId, PostUpdateRequest request, Long memberId) {
 
         post.updatePost(member, request.title(), request.content());
     }
+
+    public PostDto getPost(Long postId) {
+        return PostDto.from(postRepository.findById(postId)
+                .orElseThrow(() -> new EntityNotFoundException("게시글을 찾을 수 없습니다.")));
+    }
 }
diff --git a/src/test/java/cotato/bookitlist/post/controller/PostControllerTest.java b/src/test/java/cotato/bookitlist/post/controller/PostControllerTest.java
@@ -2,8 +2,8 @@
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import cotato.bookitlist.annotation.WithCustomMockUser;
-import cotato.bookitlist.post.dto.PostRegisterRequest;
-import cotato.bookitlist.post.dto.PostUpdateRequest;
+import cotato.bookitlist.post.dto.requeset.PostRegisterRequest;
+import cotato.bookitlist.post.dto.requeset.PostUpdateRequest;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -18,8 +18,7 @@
 
 import java.util.List;
 
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
@@ -157,5 +156,28 @@ private static List<PostUpdateRequest> provideInvalidPostUpdateRequest() {
         );
     }
 
+    @Test
+    @DisplayName("게시글을 조회한다.")
+    void givenPostId_whenGettingPost_thenPostResponse() throws Exception {
+        //given
+
+        //when & then
+        mockMvc.perform(get("/posts/1")
+                        .contentType(MediaType.APPLICATION_JSON))
+                .andExpect(status().isOk())
+        ;
+    }
+
+    @Test
+    @DisplayName("없는 게시글 id로 조회하면 에러를 반환한다.")
+    void givenNonExistedPostId_whenGettingPost_thenErrorResponse() throws Exception {
+        //given
+
+        //when & then
+        mockMvc.perform(get("/posts/10")
+                        .contentType(MediaType.APPLICATION_JSON))
+                .andExpect(status().isNotFound())
+        ;
+    }
 }