working get by id route

src/main/java/com/nisum/webfluxday2/controller/ProductController.java

@@ -22,8 +22,15 @@ public class ProductController {
         return productService.getAll();
     }
 
+    @GetMapping("/products/{id}")
+    public Mono<ProductResponse> findProduct(@PathVariable String id){
+        return productService.findProduct(id);
+    }
+
     @PostMapping("/products")
     public Mono<ProductResponse> addNewProduct(@RequestBody ProductRequest productRequest){
         return productService.addProduct(productRequest);
     }
+
+
 }

src/main/java/com/nisum/webfluxday2/service/ProductService.java

@@ -25,4 +25,9 @@ public class ProductService {
         Mono<Product> newProduct = productRepository.insert(new Product(productRequest));
         return newProduct.map(product -> new ProductResponse(product));
     }
+
+    public Mono<ProductResponse> findProduct(String id) {
+        Mono<Product> product = productRepository.findById(id);
+        return product.map(prod -> new ProductResponse(prod));
+    }
 }