add post userbook

needed a refactor to check the id in db during dto validation

internal/routes/userlogin.go

@@ -19,13 +19,13 @@ func PostLoginHandler(ac appcontext.AppContext) {
 	var user dto.UserLogin
 	err := ac.C.ShouldBindJSON(&user)
 	if err != nil {
-		myvalidator.ManageBindingError(ac, err)
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
 		return
 	}
 
 	if !isUserAndPasswordOk(ac.Db, user.Username, user.Password) {
-		ac.C.JSON(http.StatusInternalServerError,
-			gin.H{"error": i18nresource.GetTranslatedMessage(ac, "InvalidCredentials")})
+		ac.C.JSON(http.StatusUnauthorized,
+			gin.H{"error": i18nresource.GetTranslatedMessage(&ac, "InvalidCredentials")})
 		return
 	}
 
@@ -36,7 +36,7 @@ func PostLoginHandler(ac appcontext.AppContext) {
 			gin.H{"error": fmt.Errorf("Error when generating JWT token: %w", err)})
 		return
 	}
-	ac.C.JSON(200, gin.H{"message": i18nresource.GetTranslatedMessage(ac, "AuthenticationSuccess"), "token": jwtToken})
+	ac.C.JSON(http.StatusOK, gin.H{"message": i18nresource.GetTranslatedMessage(&ac, "AuthenticationSuccess"), "token": jwtToken})
 }
 
 func isUserAndPasswordOk(db *gorm.DB, username string, password string) bool {