refactor: clean architecture (#11)

changed all folder structures and logic in the code

cmd/web/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/gin-gonic/gin"
+	"github.com/joho/godotenv"
+
+	"ngodeyuk-core/database"
+	"ngodeyuk-core/internal/infrastructure/routes"
+)
+
+func main() {
+	route := gin.Default()
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatalf("error load .env file: %v", err)
+	}
+
+	db, err := database.InitDB()
+	if err != nil {
+		panic("failed to connect database.")
+	}
+	routes.UserRoutes(route, db)
+
+	fmt.Println("Server is running at http://localhost:2000")
+	log.Fatal(route.Run(":2000"))
+}

config/database.go → database/config.go

@@ -1,4 +1,4 @@
-package config
+package database
 
 import (
 	"log"

go.mod

@@ -4,6 +4,8 @@ go 1.22.4
 
 require github.com/gin-gonic/gin v1.10.0
 
+require github.com/golang-jwt/jwt/v5 v5.2.1 // indirect
+
 require (
 	github.com/bytedance/sonic v1.11.6 // indirect
 	github.com/bytedance/sonic/loader v0.1.1 // indirect

go.sum

@@ -27,6 +27,8 @@ github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBEx
 github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
+github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk=
+github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=

pkg/dto/user_dto.go → internal/domain/dtos/user_dto.go

@@ -1,7 +1,7 @@
-package dto
+package dtos
 
 type RegisterDTO struct {
-	Name     string `json:"name" binding:"required"`
+	Name     string `json:"name"     binding:"required"`
 	Username string `json:"username" binding:"required"`
 	Password string `json:"password" binding:"required"`
 }
@@ -10,8 +10,3 @@ type LoginDTO struct {
 	Username string `json:"username" binding:"required"`
 	Password string `json:"password" binding:"required"`
 }
-
-type ChangePasswordDTO struct {
-	OldPassword string `json:"old_password" binding:"required"`
-	NewPassword string `json:"new_password" binding:"required"`
-}

internal/domain/repositories/user_repository.go

@@ -0,0 +1,41 @@
+package repositories
+
+import (
+	"gorm.io/gorm"
+
+	"ngodeyuk-core/internal/domain/models"
+)
+
+type UserRepository interface {
+	Create(user *models.User) error
+	FindByUsername(username string) (*models.User, error)
+	Update(user *models.User) error
+}
+
+type userRepository struct {
+	db *gorm.DB
+}
+
+func NewUserRepository(db *gorm.DB) UserRepository {
+	return &userRepository{db}
+}
+
+func (repository *userRepository) Create(user *models.User) error {
+	return repository.db.Create(user).Error
+}
+
+func (repository *userRepository) FindByUsername(username string) (*models.User, error) {
+	var user models.User
+	err := repository.db.Where("username = ?", username).First(&user).Error
+	if err != nil {
+		return nil, err
+	}
+	return &user, nil
+}
+
+func (repository *userRepository) Update(user *models.User) error {
+	if err := repository.db.Save(user).Error; err != nil {
+		return err
+	}
+	return nil
+}

internal/infrastructure/handlers/user_handler.go

@@ -0,0 +1,61 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+
+	"ngodeyuk-core/internal/domain/dtos"
+	"ngodeyuk-core/internal/services"
+)
+
+type UserHandler interface {
+	Register(c *gin.Context)
+	Login(c *gin.Context)
+}
+
+type userHandler struct {
+	service services.UserService
+}
+
+func NewUserHandler(service services.UserService) UserHandler {
+	return &userHandler{service}
+}
+
+func (handler *userHandler) Register(ctx *gin.Context) {
+	var input dtos.RegisterDTO
+	if err := ctx.ShouldBindJSON(&input); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	err := handler.service.Register(&input)
+	if err != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	ctx.JSON(http.StatusCreated, gin.H{
+		"data": gin.H{
+			"name":     input.Name,
+			"username": input.Username,
+		},
+	})
+}
+
+func (handler *userHandler) Login(ctx *gin.Context) {
+	var input dtos.LoginDTO
+	if err := ctx.ShouldBindJSON(&input); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	token, err := handler.service.Login(&input)
+	if err != nil {
+		ctx.JSON(http.StatusUnauthorized, gin.H{"error": err.Error()})
+		return
+	}
+
+	ctx.JSON(http.StatusOK, gin.H{
+		"token": token,
+	})
+}

internal/infrastructure/routes/routes.go

@@ -0,0 +1,19 @@
+package routes
+
+import (
+	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
+
+	"ngodeyuk-core/internal/domain/repositories"
+	"ngodeyuk-core/internal/infrastructure/handlers"
+	"ngodeyuk-core/internal/services"
+)
+
+func UserRoutes(route *gin.Engine, db *gorm.DB) {
+	repository := repositories.NewUserRepository(db)
+	service := services.NewUserService(repository)
+	handler := handlers.NewUserHandler(service)
+
+	route.POST("auth/register", handler.Register)
+	route.POST("auth/login", handler.Login)
+}