feat: added complete create product

feat: added complete create product

with injection

missing unit testing

README.md

@@ -196,6 +196,9 @@ https://github.com/sebajax/go-vertical-slice-architecture/blob/d4501917930ef2263
 ### Formatting, Linting and Vetting
 
 ```bash
+    # Clean dependencies
+        go mod tidy
+
     # Run formating
         go fmt ./...
 

cmd/main.go

@@ -8,7 +8,8 @@ import (
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/cors"
 	"github.com/gofiber/fiber/v2/middleware/helmet"
-	"github.com/sebajax/go-vertical-slice-architecture/internal/user/handler"
+	producthandler "github.com/sebajax/go-vertical-slice-architecture/internal/product/handler"
+	userhandler "github.com/sebajax/go-vertical-slice-architecture/internal/user/handler"
 	"github.com/sebajax/go-vertical-slice-architecture/pkg/injection"
 	"github.com/sebajax/go-vertical-slice-architecture/pkg/middleware"
 )
@@ -37,10 +38,16 @@ func main() {
 		return c.SendString("Status ok - api running")
 	})
 
-	// add api group for users
-	api := app.Group("/api")       // /api
-	userApi := api.Group("/users") // /api/user
-	handler.UserRouter(userApi, injection.UserServiceProvider)
+	// create api group
+	api := app.Group("/api") // /api
+
+	// add api group for user
+	userApi := api.Group("/user") // /api/user
+	userhandler.UserRouter(userApi, injection.UserServiceProvider)
+
+	// add api group for product
+	productApi := api.Group("/product") // /api/product
+	producthandler.ProductRouter(productApi, injection.ProductServiceProvider)
 
 	// listen in port 8080
 	log.Fatal(app.Listen(fmt.Sprintf(":%s", os.Getenv("API_PORT"))))

internal/product/handler/createProduct.go

@@ -3,6 +3,7 @@ package handler
 import (
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/log"
+	"github.com/sebajax/go-vertical-slice-architecture/internal/product"
 	"github.com/sebajax/go-vertical-slice-architecture/internal/product/service"
 	"github.com/sebajax/go-vertical-slice-architecture/pkg/apperror"
 	"github.com/sebajax/go-vertical-slice-architecture/pkg/message"
@@ -18,7 +19,7 @@ type ProductSchema struct {
 }
 
 // Creates a new product into the database
-func CreateProduct(s service.CreateUserService) fiber.Handler {
+func CreateProduct(s *service.CreateProductService) fiber.Handler {
 	return func(c *fiber.Ctx) error {
 		// Get body request
 		var body ProductSchema
@@ -38,16 +39,15 @@ func CreateProduct(s service.CreateUserService) fiber.Handler {
 		}
 
 		// No schema errores then map body to domain
-		user := &product{
-			IdentityNumber: body.IdentityNumber,
-			FirstName:      body.FirstName,
-			LastName:       body.LastName,
-			Email:          body.Email,
-			DateOfBirth:    body.DateOfBirth,
+		p := &product.Product{
+			Name:     body.Name,
+			Sku:      body.Sku,
+			Category: product.ParseProductCategory(body.Category),
+			Price:    body.Price,
 		}
 
 		// Execute the service
-		result, err := s.CreateUser(user)
+		result, err := s.CreateProduct(p)
 		if err != nil {
 			// if service response an error return via the middleware
 			log.Error(err)

internal/product/handler/handler.go

@@ -2,10 +2,10 @@ package handler
 
 import (
 	"github.com/gofiber/fiber/v2"
-	"github.com/sebajax/go-vertical-slice-architecture/internal/user/service"
+	"github.com/sebajax/go-vertical-slice-architecture/internal/product/service"
 )
 
-// UserRouter is the Router for GoFiber App
-func UserRouter(app fiber.Router, s *service.UserService) {
-	app.Post("/", CreateUser(s.CreateUserServiceProvider))
+// ProductRouter is the Router for GoFiber App
+func ProductRouter(app fiber.Router, s *service.ProductService) {
+	app.Post("/", CreateProduct(s.CreateProductServiceProvider))
 }

internal/product/infrastructure/productRepository.go

@@ -4,45 +4,46 @@ import (
 	"database/sql"
 	"fmt"
 
-	"github.com/sebajax/go-vertical-slice-architecture/internal/user"
+	"github.com/sebajax/go-vertical-slice-architecture/internal/product"
 	"github.com/sebajax/go-vertical-slice-architecture/pkg/database"
 )
 
-// User repository for querying the database
-type userRepository struct {
+// Product repository for querying the database
+type productRepository struct {
 	db *database.DbConn
 }
 
-// Create a user instance repository
-func NewUserRepository(dbcon *database.DbConn) user.UserRepository {
-	return &userRepository{db: dbcon}
+// Create a product instance repository
+func NewProductRepository(dbcon *database.DbConn) product.ProductRepository {
+	return &productRepository{db: dbcon}
 }
 
-// Stores a new user in the database
-func (repo *userRepository) Save(u *user.User) (int64, error) {
+// Stores a new product in the database
+func (repo *productRepository) Save(p *product.Product) (int64, error) {
 	// Get the id inserted in the database
 	var id int64
 
-	query := `INSERT INTO client (identity_number, first_name, last_name, email, date_of_birth) 
-				VALUES ($1, $2, $3, $4, $5) RETURNING id`
-	err := repo.db.DbPool.QueryRow(query, u.IdentityNumber, u.FirstName, u.LastName, u.Email, u.DateOfBirth).Scan(&id)
+	query := `INSERT INTO product (name, sku, category, price) 
+				VALUES ($1, $2, $3, $4) RETURNING id`
+	err := repo.db.DbPool.QueryRow(query, p.Name, p.Sku, p.Category, p.Price).Scan(&id)
 	if err != nil {
 		return 0, err
 	}
 
 	fmt.Println("id: ", id)
 
-	// No errors return the user id inserted
+	// No errors return the product id inserted
 	return id, nil
 }
 
-// Gets the user by the email
-func (repo *userRepository) GetByEmail(email string) (*user.User, bool, error) {
-	u := user.User{}
-	query := `SELECT id, identity_number, first_name, last_name, email, date_of_birth, created_at
-				FROM client 
-				WHERE email = $1`
-	err := repo.db.DbPool.QueryRow(query, email).Scan(&u.Id, &u.IdentityNumber, &u.FirstName, &u.LastName, &u.Email, &u.DateOfBirth, &u.CreatedAt)
+// Gets the product by the sku
+func (repo *productRepository) GetBySku(sku string) (*product.Product, bool, error) {
+	p := product.Product{}
+	var category string
+	query := `SELECT id, name, sku, category, price, created_at
+				FROM product 
+				WHERE sku = $1`
+	err := repo.db.DbPool.QueryRow(query, sku).Scan(&p.Id, &p.Name, &p.Sku, &category, &p.Price, &p.CreatedAt)
 	if err != nil {
 		// Not found, but not an error
 		if err == sql.ErrNoRows {
@@ -52,6 +53,9 @@ func (repo *userRepository) GetByEmail(email string) (*user.User, bool, error) {
 		return nil, false, err
 	}
 
+	// Parse to Enum category
+	p.Category = product.ParseProductCategory(category)
+
 	// Found the item
-	return &u, true, nil
+	return &p, true, nil
 }

internal/product/mock/mockProductRepository.go

@@ -1,24 +1,28 @@
 package mocks
 
-import "github.com/sebajax/go-vertical-slice-architecture/internal/user"
+import (
+	"time"
 
-type mockUserRepository struct{}
+	"github.com/sebajax/go-vertical-slice-architecture/internal/product"
+)
 
-func NewMockUserRepository() user.UserRepository {
-	return &mockUserRepository{}
+type mockProductRepository struct{}
+
+func NewMockProductRepository() product.ProductRepository {
+	return &mockProductRepository{}
 }
 
-func (mock *mockUserRepository) Save(u *user.User) (int64, error) {
+func (mock *mockProductRepository) Save(p *product.Product) (int64, error) {
 	return 1, nil
 }
 
-func (mock *mockUserRepository) GetByEmail(email string) (*user.User, bool, error) {
-	/*return &user.User{
-		Id: 1,
-		Email: "[email protected]",
-		Name: "Juan",
-		DateOfBirth: time.Now(),
+func (mock *mockProductRepository) GetBySku(email string) (*product.Product, bool, error) {
+	return &product.Product{
+		Id:        1,
+		Name:      "ps5",
+		Sku:       "123456sony",
+		Category:  product.SmartWatch,
+		Price:     300.00,
 		CreatedAt: time.Now(),
-	}, true, nil*/
-	return nil, true, nil
+	}, true, nil
 }

internal/product/port.go

@@ -1,7 +1,7 @@
 package product
 
-// User port interface definition for depedency injection
-type UserRepository interface {
-	Save(u *User) (int64, error)
-	GetByEmail(email string) (*User, bool, error)
+// Product port interface definition for depedency injection
+type ProductRepository interface {
+	Save(p *Product) (int64, error)
+	GetBySku(sku string) (*Product, bool, error)
 }

internal/product/product.go

@@ -1,6 +1,9 @@
 package product
 
-import "time"
+import (
+	"strings"
+	"time"
+)
 
 // ProductCategory represents the categories of electronic products
 type ProductCategory int
@@ -31,6 +34,28 @@ func (p ProductCategory) String() string {
 	}[p]
 }
 
+// Parse ProductCategory converts a string to ProductCategory
+func ParseProductCategory(s string) ProductCategory {
+	switch strings.ToLower(s) {
+	case "laptop":
+		return Laptop
+	case "smartphone":
+		return Smartphone
+	case "tablet":
+		return Tablet
+	case "smartwatch":
+		return SmartWatch
+	case "headphones":
+		return Headphones
+	case "camera":
+		return Camera
+	case "television":
+		return Television
+	default:
+		return Other
+	}
+}
+
 // Const for error messages
 const (
 	ErrorSkuExists     string = "ERROR_SKU_EXISTS"

internal/product/service/createProduct.go

@@ -3,54 +3,49 @@ package service
 import (
 	"log"
 
-	"github.com/sebajax/go-vertical-slice-architecture/internal/user"
+	"github.com/sebajax/go-vertical-slice-architecture/internal/product"
 	"github.com/sebajax/go-vertical-slice-architecture/pkg/apperror"
 )
 
-// CreateUserService interface for DI
-type CreateUserService interface {
-	CreateUser(user *user.User) (int64, error)
+// Product use cases (port injection)
+type CreateProductService struct {
+	productRepository product.ProductRepository
 }
 
-// User use cases (port injection)
-type createUserService struct {
-	userRepository user.UserRepository
-}
-
-// Create a new user service use case instance
-func NewCreateUserService(repository user.UserRepository) CreateUserService {
-	// return the pointer to user service
-	return &createUserService{
-		userRepository: repository,
+// Create a new product service use case instance
+func NewCreateProductService(repository product.ProductRepository) *CreateProductService {
+	// return the pointer to product service
+	return &CreateProductService{
+		productRepository: repository,
 	}
 }
 
-// Create a new user and store the user in the database
-func (service *createUserService) CreateUser(u *user.User) (int64, error) {
-	_, check, err := service.userRepository.GetByEmail(u.Email)
-	// check if user does not exist and no database error ocurred
+// Create a new product and store the product into the database
+func (service *CreateProductService) CreateProduct(p *product.Product) (int64, error) {
+	_, check, err := service.productRepository.GetBySku(p.Sku)
+	// check if product sky does not exist and no database error ocurred
 	if err != nil {
 		// database error
 		log.Fatalln(err)
 		err := apperror.InternalServerError()
 		return 0, err
 	}
 	if check {
-		// user found
-		log.Println(u, user.ErrorEmailExists)
-		err := apperror.BadRequest(user.ErrorEmailExists)
+		// product sku found
+		log.Println(p, product.ErrorSkuExists)
+		err := apperror.BadRequest(product.ErrorSkuExists)
 		return 0, err
 	}
 
-	// create the new user and return the id
-	userId, err := service.userRepository.Save(u)
+	// create the new product and return the id
+	id, err := service.productRepository.Save(p)
 	if err != nil {
 		// database error
 		log.Fatalln(err)
 		err := apperror.InternalServerError()
 		return 0, err
 	}
 
-	// user created successfuly
-	return userId, nil
+	// product created successfuly
+	return id, nil
 }

internal/product/service/service.go

@@ -1,40 +1,40 @@
 package service
 
 import (
-	"github.com/sebajax/go-vertical-slice-architecture/internal/user/infrastructure"
+	"github.com/sebajax/go-vertical-slice-architecture/internal/product/infrastructure"
 	"go.uber.org/dig"
 )
 
-// user service instance
-type UserService struct {
-	CreateUserServiceProvider CreateUserService
+// product service instance
+type ProductService struct {
+	CreateProductServiceProvider *CreateProductService
 }
 
-func NewUserService() *UserService {
-	return &UserService{}
+func NewProductService() *ProductService {
+	return &ProductService{}
 }
 
 // provide components for injection
-func ProvideUserComponents(c *dig.Container) {
+func ProvideProductComponents(c *dig.Container) {
 	// repositorory provider injection
-	err := c.Provide(infrastructure.NewUserRepository)
+	err := c.Provide(infrastructure.NewProductRepository)
 	if err != nil {
 		panic(err)
 	}
 
-	//service provider injection
-	err = c.Provide(NewCreateUserService)
+	// service provider injection
+	err = c.Provide(NewCreateProductService)
 	if err != nil {
 		panic(err)
 	}
 }
 
 // init service container
-func (us *UserService) InitUserComponents(c *dig.Container) error {
-	// create user service
+func (ps *ProductService) InitProductComponents(c *dig.Container) error {
+	// create product service
 	err := c.Invoke(
-		func(s CreateUserService) {
-			us.CreateUserServiceProvider = s
+		func(s *CreateProductService) {
+			ps.CreateProductServiceProvider = s
 		},
 	)