codebase/guide-to-restclient [BAEL-9597] [Improvement] [2/2]

spring-boot-modules/spring-boot-client/pom.xml

@@ -62,4 +62,16 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <mainClass>com.baeldung.boot.Application</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
 </project>

spring-boot-modules/spring-boot-client/src/main/java/com/baeldung/restclient/Application.java

@@ -0,0 +1,12 @@
+package com.baeldung.restclient;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

spring-boot-modules/spring-boot-client/src/main/java/com/baeldung/restclient/Article.java

@@ -0,0 +1,30 @@
+package com.baeldung.restclient;
+
+public class Article {
+    private Integer id;
+    private String title;
+
+    public Article() {
+    }
+
+    public Article(Integer id, String title) {
+        this.id = id;
+        this.title = title;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+}

spring-boot-modules/spring-boot-client/src/main/java/com/baeldung/restclient/ArticleController.java

@@ -0,0 +1,82 @@
+package com.baeldung.restclient;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/articles")
+class ArticleController {
+
+    Map<Integer, Article> database = new HashMap<>();
+
+    @GetMapping
+    ResponseEntity<Collection<Article>> getArticles() {
+        Collection<Article> values = database.values();
+        if (values.isEmpty()) {
+            return ResponseEntity.noContent().build();
+        }
+        return ResponseEntity.ok(values);
+    }
+
+    @GetMapping("/{id}")
+    ResponseEntity<Article> getArticle(@PathVariable("id") Integer id) {
+        Article article = database.get(id);
+        if (article == null) {
+            return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.ok(article);
+    }
+
+    @GetMapping(value = "/{id}", headers = "API-Version=2")
+    ResponseEntity<Article> getArticleV2(@PathVariable("id") Integer id) {
+        return ResponseEntity.ok(new Article(100, "SECRET ARTICLE"));
+    }
+
+    @GetMapping("/search")
+    ResponseEntity<Article> searchArticleByTitle(@RequestParam(name = "title") String title) {
+        Optional<Article> article = database.values().stream()
+            .filter(a -> a.getTitle().contains(title))
+            .findFirst();
+        if (article.isEmpty()) {
+            return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.ok(article.get());
+    }
+
+    @PostMapping(produces = MediaType.APPLICATION_JSON_VALUE)
+    void createArticle(@RequestBody Article article) {
+        database.put(article.getId(), article);
+    }
+
+    @PutMapping("/{id}")
+    void updateArticle(@PathVariable("id") Integer id, @RequestBody Article article) {
+        assert Objects.equals(id, article.getId());
+        database.remove(id);
+        database.put(id, article);
+    }
+
+    @DeleteMapping("/{id}")
+    void deleteArticle(@PathVariable("id") Integer id) {
+        database.remove(id);
+    }
+
+    @DeleteMapping
+    void deleteAllArticles() {
+        database.clear();
+    }
+}

spring-boot-modules/spring-boot-client/src/main/java/com/baeldung/restclient/ArticleNotFoundException.java

@@ -0,0 +1,4 @@
+package com.baeldung.restclient;
+
+class ArticleNotFoundException extends RuntimeException {
+}

spring-boot-modules/spring-boot-client/src/main/java/com/baeldung/restclient/InvalidArticleResponseException.java

@@ -0,0 +1,4 @@
+package com.baeldung.restclient;
+
+class InvalidArticleResponseException extends RuntimeException {
+}