Spring Boot RESTful API

Author: giaunv

springboot-examples/springboot-mockmvc-hsql/src/main/java/com/hellokoding/springboot/restful/StockAPI.java

@@ -2,10 +2,13 @@
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
+import java.util.Objects;
 import java.util.Optional;
 
 @RequiredArgsConstructor
@@ -34,7 +37,7 @@ public ResponseEntity<Stock> findById(@PathVariable Long stockId) {
 
     @PostMapping
     public ResponseEntity create(@RequestBody Stock stock) {
-        return ResponseEntity.ok(stockService.save(stock));
+        return ResponseEntity.status(HttpStatus.CREATED).body(stockService.save(stock));
     }
 
     @PatchMapping("/{stockId}")
@@ -46,9 +49,16 @@ public ResponseEntity<Stock> update(@PathVariable Long stockId, @RequestBody Sto
         }
 
         Stock stock = stockOptional.get();
-        if (updatingStock.getName() != null) stock.setName(updatingStock.getName());
-        if (updatingStock.getPrice() != null) stock.setPrice(updatingStock.getPrice());
+        if (!StringUtils.isEmpty(updatingStock.getName())) stock.setName(updatingStock.getName());
+        if (!Objects.isNull(updatingStock.getPrice())) stock.setPrice(updatingStock.getPrice());
 
-        return ResponseEntity.ok(stockService.save(stock));
+        return ResponseEntity.accepted().body(stockService.save(stock));
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity delete(@PathVariable Long id) {
+        stockService.deleteById(id);
+
+        return ResponseEntity.accepted().build();
     }
 }

springboot-examples/springboot-mockmvc-hsql/src/main/java/com/hellokoding/springboot/restful/StockService.java

@@ -23,4 +23,8 @@ public Optional<Stock> findById(Long id) {
     public Stock save(Stock stock) {
         return stockRepository.save(stock);
     }
+
+    public void deleteById(Long id) {
+        stockRepository.deleteById(id);
+    }
 }

springboot-examples/springboot-mockmvc-hsql/src/test/java/com/hellokoding/springboot/restful/StockAPITest.java

@@ -20,7 +20,6 @@
 @RunWith(SpringRunner.class)
 @WebMvcTest
 public class StockAPITest {
-
     @Autowired
     private MockMvc mockMvc;
 
@@ -29,6 +28,7 @@ public class StockAPITest {
 
     @Test
     public void findAll() throws Exception {
+        // given
         Stock stock = new Stock();
         stock.setId(1L);
         stock.setName("Stock 1");
@@ -37,6 +37,7 @@ public void findAll() throws Exception {
         List<Stock> stocks = Arrays.asList(stock);
         given(stockService.findAll()).willReturn(stocks);
 
+        // when + then
         this.mockMvc.perform(get("/api/v1/stocks"))
                 .andExpect(status().isOk())
                 .andExpect(content().json("[{'id': 1,'name': 'Stock 1';'price': 1}]"));

springboot-examples/springboot-restfulapi/Dockerfile

@@ -30,8 +30,8 @@
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
         <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
+            <groupId>org.hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
         </dependency>
     </dependencies>