.

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

src/main/java/dev/ptnr/frontalobebackend/controller/BlogApiController.java

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+package dev.ptnr.frontalobebackend.controller;
+
+import dev.ptnr.frontalobebackend.domain.Article;
+import dev.ptnr.frontalobebackend.dto.AddArticleRequest;
+import dev.ptnr.frontalobebackend.service.BlogService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RequiredArgsConstructor
+@RestController // HTTP Response Body의 객체 데이터를 JSON 형식으로 반환하는 컨트롤러
+public class BlogApiController {
+    private final BlogService blogService;
+
+    @PostMapping("/api/articles")
+    public ResponseEntity<Article> addArticle(@RequestBody AddArticleRequest request) {
+        Article savedArticle = blogService.save(request);
+        return ResponseEntity.status(HttpStatus.CREATED).body(savedArticle);
+    }
+}

src/main/java/dev/ptnr/frontalobebackend/domain/Article.java

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+package dev.ptnr.frontalobebackend.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Article {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", updatable = false)
+    private Long id;
+
+    @Column(name = "title", nullable = false)
+    private String title;
+
+    @Column(name = "content", nullable = false)
+    private String content;
+
+    @Builder
+    public Article(String title, String content) {
+        this.title = title;
+        this.content = content;
+    }
+}

src/main/java/dev/ptnr/frontalobebackend/dto/AddArticleRequest.java

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+package dev.ptnr.frontalobebackend.dto;
+
+import dev.ptnr.frontalobebackend.domain.Article;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+@AllArgsConstructor
+@Getter
+public class AddArticleRequest {
+    private String title;
+    private String content;
+
+    public Article toEntity() {
+        return Article.builder().title(title).content(content).build();
+    }
+}

src/main/java/dev/ptnr/frontalobebackend/dto/ArticleResponse.java

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+package dev.ptnr.frontalobebackend.dto;
+
+import dev.ptnr.frontalobebackend.domain.Article;
+import lombok.Getter;
+
+@Getter
+public class ArticleResponse {
+    private final String title;
+    private final String content;
+
+    public ArticleResponse(Article article) {
+        this.title = article.getTitle();
+        this.content = article.getContent();
+    }
+}

src/main/java/dev/ptnr/frontalobebackend/repository/BlogRepository.java

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+package dev.ptnr.frontalobebackend.repository;
+
+import dev.ptnr.frontalobebackend.domain.Article;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface BlogRepository extends JpaRepository<Article, Long> {
+
+}

src/main/java/dev/ptnr/frontalobebackend/service/BlogService.java

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+package dev.ptnr.frontalobebackend.service;
+
+import dev.ptnr.frontalobebackend.domain.Article;
+import dev.ptnr.frontalobebackend.dto.AddArticleRequest;
+import dev.ptnr.frontalobebackend.repository.BlogRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@RequiredArgsConstructor // final or @NotNull이 붙은 생성자를 만들어 줌
+@Service // BlogService as Spring Bean
+public class BlogService {
+    private final BlogRepository blogRepository;
+
+    // Add Blog Article
+    public Article save(AddArticleRequest request) {
+        return blogRepository.save(request.toEntity());
+    }
+
+    public List<Article> findAll() {
+        return blogRepository.findAll();
+    }
+}

src/test/java/dev/ptnr/frontalobebackend/controller/BlogApiControllerTest.java

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+package dev.ptnr.frontalobebackend.controller;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import dev.ptnr.frontalobebackend.domain.Article;
+import dev.ptnr.frontalobebackend.dto.AddArticleRequest;
+import dev.ptnr.frontalobebackend.repository.BlogRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+import java.util.List;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+class BlogApiControllerTest {
+    @Autowired
+    protected MockMvc mockMvc;
+
+    @Autowired
+    protected ObjectMapper objectMapper; // Marshal, Unmarshal을 위한 클래스
+
+    @Autowired
+    private WebApplicationContext context;
+
+    @Autowired
+    BlogRepository blogRepository;
+
+    @BeforeEach
+    public void mockMvcSetup() {
+        this.mockMvc = MockMvcBuilders.webAppContextSetup(context).build();
+        blogRepository.deleteAll();
+    }
+
+    @DisplayName("addArticle: 블로그 글 추가 성공 확인")
+    @Test
+    public void addArticle() throws Exception {
+        // given
+        final String url = "/api/articles";
+        final String title = "title";
+        final String content = "content";
+        final AddArticleRequest userRequest = new AddArticleRequest(title, content);
+
+        // Marshal JSON
+        final String requestBody = objectMapper.writeValueAsString(userRequest);
+
+        // when
+        // given에서 설정한 내용을 바탕으로 요청 전송
+        ResultActions result = mockMvc.perform(post(url).contentType(MediaType.APPLICATION_JSON_VALUE).content(requestBody));
+
+        // then
+        result.andExpect(status().isCreated());
+
+        List<Article> articles = blogRepository.findAll();
+
+        assertThat(articles.size()).isEqualTo(1);
+        assertThat(articles.get(0).getTitle()).isEqualTo(title);
+        assertThat(articles.get(0).getContent()).isEqualTo(content);
+    }
+}