add post with request body to api

src/main/java/de/kebidge/middleware/ShoppingAPI.java

@@ -13,8 +13,12 @@ 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.RestController;
 
+// WRONG IMPORT!!!
+//import io.swagger.v3.oas.annotations.parameters.RequestBody;
+
 
 @RestController
 public class ShoppingAPI {
@@ -93,7 +97,6 @@ public class ShoppingAPI {
                 //return "Increased Amount (from " + (tempItem.amount - amount) + " to " + newItem.amount + ") of " + newItem.item + " successfully in shoppingItemRepository";
                 return newItem;
             }
-
         }
 
         
@@ -133,7 +136,7 @@ public class ShoppingAPI {
 
                 logger.info("new id = {}", tempItem.id);
                 logger.info("new item = {}", tempItem.item);
-                logger.info("amount = {}", tempItem.amount);
+                logger.info("new amount = {}", tempItem.amount);
 
                 return "Increased Amount (from " + (tempItem.amount - 1) + " to " + newItem.amount + ") of " + newItem.item + " successfully in shoppingItemRepository";
             }
@@ -146,12 +149,51 @@ public class ShoppingAPI {
         logger.info("----- ADD Item -----");    
         logger.info("new id = {}", newItem.id);
         logger.info("new item = {}", newItem.item);
-        logger.info("amount = {}", newItem.amount);
+        logger.info("new amount = {}", newItem.amount);
 
         return "Added " + newItem.item + " successfully to shoppingItemRepository";
 
     }
 
+    @PostMapping(consumes = "application/json", produces = "application/json", path = "/shoppingItem/add")
+    public ShoppingItem addShoppingItemRequestBody(@RequestBody ShoppingItem newItem) {
+
+        Iterable<ShoppingItem> iterableItems = shoppingItemRepository.findAll();
+        Iterator<ShoppingItem> itemTerator = iterableItems.iterator();
+
+        while(itemTerator.hasNext()){
+
+            ShoppingItem tempItem = itemTerator.next();
+
+            if (tempItem.item.equals(newItem.item)) {
+
+                logger.info("----- ADD Item via UI with Amount-----");  
+
+                int newAmount = tempItem.amount + newItem.getAmount();
+
+                newItem.setId(tempItem.id);
+                newItem.setAmount(newAmount);
+
+                shoppingItemRepository.save(newItem);  
+
+                logger.info("new id = {}", newItem.id);
+                logger.info("new item = {}", newItem.item);
+                logger.info("amount = {}", newAmount);
+
+                return newItem;
+            }
+        }
+
+        shoppingItemRepository.save(newItem);
+
+        logger.info("----- ADD Item via UI -----");  
+        logger.info("new id = {}", newItem.id);
+        logger.info("new item = {}", newItem.item);
+        logger.info("new amount = {}", newItem.amount);
+
+        return newItem;
+    }
+
     @PutMapping("/shoppingItem/{old_item}/{new_item}")
     public String updaShoppingItem(@PathVariable String old_item, @PathVariable String new_item) {