feat: add get user by username endpoint

Author: ainunns

controller/user_controller.go

@@ -14,6 +14,7 @@ type (
 		Register(ctx *gin.Context)
 		Login(ctx *gin.Context)
 		Me(ctx *gin.Context)
+		GetUserByUsername(ctx *gin.Context)
 	}
 
 	userController struct {
@@ -78,3 +79,22 @@ func (c *userController) Login(ctx *gin.Context) {
 	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_LOGIN, result)
 	ctx.JSON(http.StatusOK, res)
 }
+
+func (c *userController) GetUserByUsername(ctx *gin.Context) {
+	username := ctx.Param("username")
+	if username == "" {
+		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_USER, dto.ErrUsernameNotFound.Error(), nil)
+		ctx.JSON(http.StatusBadRequest, res)
+		return
+	}
+
+	result, err := c.userService.GetUserByUsername(ctx.Request.Context(), username)
+	if err != nil {
+		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_USER, err.Error(), nil)
+		ctx.JSON(http.StatusBadRequest, res)
+		return
+	}
+
+	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_GET_USER, result)
+	ctx.JSON(http.StatusOK, res)
+}

routes/user_route.go

@@ -19,5 +19,6 @@ func User(route *gin.Engine, injector *do.Injector) {
 		routes.POST("/register", userController.Register)
 		routes.POST("/login", userController.Login)
 		routes.GET("/me", middleware.Authenticate(jwtService), userController.Me)
+		routes.GET("/:username", userController.GetUserByUsername)
 	}
 }

service/user_service.go

@@ -17,6 +17,7 @@ type (
 		Register(ctx context.Context, req dto.UserCreateRequest) (dto.UserResponse, error)
 		GetUserById(ctx context.Context, userId string) (dto.UserResponse, error)
 		Verify(ctx context.Context, req dto.UserLoginRequest) (dto.UserLoginResponse, error)
+		GetUserByUsername(ctx context.Context, username string) (dto.UserResponse, error)
 	}
 
 	userService struct {
@@ -105,3 +106,18 @@ func (s *userService) Verify(ctx context.Context, req dto.UserLoginRequest) (dto
 		Token: token,
 	}, nil
 }
+
+func (s *userService) GetUserByUsername(ctx context.Context, username string) (dto.UserResponse, error) {
+	user, _, err := s.userRepo.CheckUsername(ctx, nil, username)
+	if err != nil {
+		return dto.UserResponse{}, dto.ErrGetUserById
+	}
+
+	return dto.UserResponse{
+		ID:       user.ID.String(),
+		Name:     user.Name,
+		UserName: user.Username,
+		Bio:      user.Bio,
+		ImageUrl: user.ImageUrl,
+	}, nil
+}