Feat/add get request

backend/src/main/java/org/example/backend/Product.java

@@ -3,6 +3,6 @@
 public record Product(
         String id,
         String name,
-        int ammount
+        int amount
 ) {
 }

backend/src/main/java/org/example/backend/ProductController.java

@@ -1,14 +1,19 @@
 package org.example.backend;
 
+import lombok.RequiredArgsConstructor;
+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;
+@RequiredArgsConstructor
 @RestController
-@RequestMapping
+@RequestMapping("/api/products")
 public class ProductController {
     private final ProductService productService;
 
-    public ProductController(ProductService productService) {
-        this.productService = productService;
+    @GetMapping
+    public List<Product> getAllGroceries() {
+        return productService.findAllGroceries();
     }
 }

backend/src/main/java/org/example/backend/ProductRepository.java

@@ -1,6 +1,9 @@
 package org.example.backend;
 
 import org.springframework.data.mongodb.repository.MongoRepository;
+import org.springframework.stereotype.Repository;
 
+@Repository
 public interface ProductRepository extends MongoRepository<Product, String> {
+
 }

backend/src/main/java/org/example/backend/ProductService.java

@@ -1,12 +1,20 @@
 package org.example.backend;
 
+import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+
+
+@RequiredArgsConstructor
 @Service
 public class ProductService {
-    private final ProductService productService;
+    private final ProductRepository productRepository;
+
 
-    public ProductService(ProductService productService) {
-        this.productService = productService;
+    public List<Product> findAllGroceries(){
+        return productRepository.findAll();
     }
+
+
 }

backend/src/test/java/org/example/backend/ProductControllerTest.java

@@ -0,0 +1,37 @@
+package org.example.backend;
+
+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.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+
+@SpringBootTest
+@AutoConfigureMockMvc
+class ProductControllerTest {
+
+    @Autowired
+    MockMvc mockMvc;
+
+    @Autowired
+    ProductRepository productRepository;
+
+    @Test
+    void getAllGroceries() throws Exception {
+        //GIVEN
+        //WHEN
+        mockMvc.perform(MockMvcRequestBuilders.get("/api/products"))
+
+                //THEN
+                .andExpect(status().isOk())
+                .andExpect(content().json("""
+                            []
+                        """));
+    }
+}

backend/src/test/java/org/example/backend/ProductServiceTest.java

@@ -0,0 +1,29 @@
+package org.example.backend;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+class ProductServiceTest {
+    ProductRepository productRepository = mock(ProductRepository.class);
+    ProductService productService = new ProductService(productRepository);
+
+    @Test
+    void findAllGroceries() {
+    //GIVEN
+        Product p1 = new Product("1", "apple", 2);
+        Product p2 = new Product("2", "peach",2);
+        Product p3 = new Product("3", "banana",3);
+        List<Product> products = List.of(p1, p2, p3);
+
+        when(productRepository.findAll()).thenReturn(products);
+        //WHEN
+        List<Product> actual = productService.findAllGroceries();
+        //THEN
+        verify(productRepository).findAll();
+        assertEquals(products, actual);
+    }
+}

frontend/src/App.tsx

@@ -1,13 +1,15 @@
 
 import './App.css'
+import ProductList from "./componets/ProductList.tsx";
 
 function App() {
 
   return (
-    <>
+      <>
+        <h1>Groceries app</h1>
+        <ProductList/>
 
-
-    </>
+      </>
   )
 }
 

frontend/src/componets/ProductList.tsx

@@ -0,0 +1,30 @@
+import { useEffect, useState } from 'react';
+import axios from 'axios';
+import { Product } from '../models/product.tsx';
+
+export default function ProductList() {
+    const [products, setProducts] = useState<Product[]>([]); // Verwende den Typ für die State-Variable
+
+    useEffect(() => {
+        axios.get<Product[]>('http://localhost:8080/api/products')
+            .then(response => {
+                setProducts(response.data);
+            })
+            .catch(error => {
+                console.error("Es gab einen Fehler beim Abrufen der Daten!", error);
+            });
+    }, []);
+
+    return (
+        <div>
+            <h1>Einkaufsliste</h1>
+            <ul>
+                {products.map(product => (
+                    <li key={product.id}>{product.name} - Menge: {product.ammount}</li>
+                ))}
+            </ul>
+        </div>
+    );
+}
+
+