made usage of first class citizen functions in go

backend-go/internal/application/services/user_service.go

@@ -38,9 +38,9 @@ func (s *UserService) CreateUser(c *gin.Context) {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
-	userCreate := mappers.MapCreateDTOToUser(userCreateDTO)
-	F.Pipe2(
-		s.repository.Create(c.Request.Context(), userCreate),
+	F.Pipe3(
+		mappers.MapCreateDTOToUser(userCreateDTO),
+		s.repository.Create(c.Request.Context()),
 		E.Map[error](mappers.MapUserToDTO),
 		E.Fold(
 			HandleError(c),
@@ -51,9 +51,9 @@ func (s *UserService) CreateUser(c *gin.Context) {
 
 // GetUserByID handles fetching a user by their ID.
 func (s *UserService) GetUserByID(c *gin.Context) {
-	id := c.Param("id")
-	F.Pipe2(
-		s.repository.FindByID(c.Request.Context(), id),
+	F.Pipe3(
+		c.Param("id"),
+		s.repository.FindByID(c.Request.Context()),
 		E.Map[error](mappers.MapUserToDTO),
 		E.Fold(
 			HandleError(c),
@@ -84,10 +84,9 @@ func (s *UserService) UpdateUser(c *gin.Context) {
 		return
 	}
 
-	userUpdate := mappers.MapUpdateDTOToUser(userUpdateDTO, id)
-
-	F.Pipe2(
-		s.repository.Update(c.Request.Context(), userUpdate),
+	F.Pipe3(
+		mappers.MapUpdateDTOToUser(userUpdateDTO, id),
+		s.repository.Update(c.Request.Context()),
 		E.Map[error](mappers.MapUserToDTO),
 		E.Fold(
 			HandleError(c),
@@ -98,15 +97,13 @@ func (s *UserService) UpdateUser(c *gin.Context) {
 
 // DeleteUser handles deleting a user by their ID.
 func (s *UserService) DeleteUser(c *gin.Context) {
-	id := c.Param("id")
-
-	F.Pipe2(
-		s.repository.Delete(c.Request.Context(), id),
+	F.Pipe3(
+		c.Param("id"),
+		s.repository.Delete(c.Request.Context()),
 		E.Map[error](mappers.MapUserToDTO),
 		E.Fold(
 			HandleError(c),
 			HandleSuccess[dto.UserDTO](c, http.StatusOK),
 		),
 	)
-
 }