Merge pull request #2 from neuefische/backend-foundations

- implement repository, controler , service, dataclass

backend/src/main/java/springweb/backend/GroceryController.java

@@ -0,0 +1,28 @@
+package springweb.backend;
+
+
+import org.springframework.stereotype.Service;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+
+@RestController
+@RequestMapping("/api/store")
+public class GroceryController {
+
+    GroceryService groceryService;
+
+    public GroceryController(GroceryService groceryService) {
+        this.groceryService = groceryService;
+    }
+
+    @GetMapping
+    public List<GroceryProduct> getAllGroceryProducts() {
+        return groceryService.getAllGroceryProducts();
+    }
+
+
+}

backend/src/main/java/springweb/backend/GroceryProduct.java

@@ -0,0 +1,12 @@
+package springweb.backend;
+
+import org.springframework.data.mongodb.core.mapping.Document;
+
+@Document("products")
+public record GroceryProduct(
+        String id,
+        String category,
+        String name,
+        double price
+        ) {
+}

backend/src/main/java/springweb/backend/GroceryRepository.java

@@ -0,0 +1,6 @@
+package springweb.backend;
+
+import org.springframework.data.mongodb.repository.MongoRepository;
+
+public interface GroceryRepository extends MongoRepository<GroceryProduct,String> {
+}

backend/src/main/java/springweb/backend/GroceryService.java

@@ -0,0 +1,21 @@
+package springweb.backend;
+
+import lombok.NoArgsConstructor;
+import org.springframework.stereotype.Repository;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class GroceryService {
+    GroceryRepository groceryRepository;
+
+    public GroceryService(GroceryRepository groceryRepository) {
+        this.groceryRepository = groceryRepository;
+    }
+
+
+    public List<GroceryProduct> getAllGroceryProducts() {
+        return groceryRepository.findAll();
+    }
+}