feat: add USER_ID_MIDDLEWARE constant and update AuthMiddleware to use it

internal/services/invoice_service.go

@@ -4,6 +4,7 @@ import (
 	"net/http"
 	"strconv"
 	"time"
+	"wm-backend/configs/constants"
 	"wm-backend/global"
 	"wm-backend/internal/models"
 	"wm-backend/internal/models/requests"
@@ -29,6 +30,7 @@ import (
 // @Failure      500   {object}  response.ErrorResponse
 // @Router       /v1/invoices [post]
 func InvoiceCreate(c *gin.Context) error {
+	userID, _ := c.Get(constants.USER_ID_MIDDLEWARE)
 	requestBody := requests.CreateInvoiceRequest{}
 	if helper.IsShouldBindJSON(c, &requestBody) {
 		return nil
@@ -39,7 +41,7 @@ func InvoiceCreate(c *gin.Context) error {
 		InvoiceConfigID: requestBody.InvoiceConfigID,
 		TotalItems:      requestBody.TotalItems,
 		Note:            requestBody.Note,
-		CreatedBy:       requestBody.CreatedBy,
+		CreatedBy:       userID.(string),
 		ApprovedBy:      requestBody.ApprovedBy,
 		CreatedAt:       time.Now(),
 	}