add postgres and refactor code

handler/position.go

@@ -2,6 +2,7 @@ package handler
 
 import (
 	"astra-users/model"
+	"astra-users/pkg/utils"
 	"errors"
 	"github.com/labstack/echo/v4"
 	"net/http"
@@ -37,17 +38,19 @@ func (h *Handler) GetPosition(id int) (*model.Position, error) {
 }
 
 func (h *Handler) CreatePosition(c echo.Context) (err error) {
-	position := new(model.Position)
+	position := new(model.PositionApi)
 
 	if err = c.Bind(position); err != nil {
 		return c.NoContent(http.StatusBadRequest)
 	}
 
-	tx := h.DB.Create(position)
+	newPosition, err := utils.TypeConverter[model.Position](position)
+
+	tx := h.DB.Create(&newPosition)
 
 	if tx.RowsAffected == 0 {
 		return c.NoContent(http.StatusBadGateway)
 	}
 
-	return c.JSON(http.StatusCreated, position)
+	return c.JSON(http.StatusCreated, newPosition)
 }