add post userbook

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

internal/routes/usersignup.go

@@ -1,31 +1,28 @@
 package routes
 
 import (
-	"net/http"
-
 	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
 	"git.artlef.fr/PersonalLibraryManager/internal/dto"
 	"git.artlef.fr/PersonalLibraryManager/internal/mapper"
 	"git.artlef.fr/PersonalLibraryManager/internal/model"
 	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
-	"github.com/gin-gonic/gin"
 )
 
 func PostSignupHandler(ac appcontext.AppContext) {
 	var user dto.UserSignup
 	err := ac.C.ShouldBindJSON(&user)
 	if err != nil {
-		myvalidator.ManageBindingError(ac, err)
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
 		return
 	}
 	userDb, err := mapper.UserWsToDb(user)
 	if err != nil {
-		ac.C.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
 		return
 	}
 	err = ac.Db.Model(&model.User{}).Save(&userDb).Error
 	if err != nil {
-		ac.C.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
 		return
 	}
 	ac.C.String(200, "Success")