refs #6613 perf: translate message error

loopback/server/middleware/error-handler.js

@@ -1,10 +1,11 @@
+const SalixError = require('../../util/salixError');
 const UserError = require('../../util/user-error');
 const logToConsole = require('strong-error-handler/lib/logger');
 
 module.exports = function() {
     return function(err, req, res, next) {
         // Thrown user errors
-        if (err instanceof UserError) {
+        if (err instanceof SalixError) {
             err.message = req.__(err.message, ...err.translateArgs);
             return next(err);
         }
@@ -13,7 +14,7 @@ module.exports = function() {
         if (err.statusCode == 422) {
             try {
                 let code;
-                let messages = err.details.messages;
+                let {messages} = err.details;
                 for (code in messages) break;
                 err.message = req.__(messages[code][0]);
                 return next(err);

loopback/util/forbiddenError.js

@@ -1,7 +1,8 @@
-module.exports = class ForbiddenError extends Error {
+const SalixError = require('./salixError');
+module.exports = class ForbiddenError extends SalixError {
     constructor(message, code, ...translateArgs) {
         super(message);
-        this.name = 'ForbiddenError';
+        this.name = ForbiddenError.name;
         this.statusCode = 403;
         this.code = code;
         this.translateArgs = translateArgs;

loopback/util/salixError.js

@@ -0,0 +1,5 @@
+module.exports = class SalixError extends Error {
+    constructor(message) {
+        super(message);
+    }
+};

loopback/util/user-error.js

@@ -4,10 +4,11 @@
  * the final user, so they cannot contain sensitive data and must
  * be understandable by people who do not have a technical profile.
  */
-module.exports = class UserError extends Error {
+const SalixError = require('./salixError');
+module.exports = class UserError extends SalixError {
     constructor(message, code, ...translateArgs) {
         super(message);
-        this.name = 'UserError';
+        this.name = UserError.name;
         this.statusCode = 400;
         this.code = code;
         this.translateArgs = translateArgs;