Intlayer

import { HttpStatusCodes } from '@utils/httpStatusCodes'; // @ts-ignore express-intlayer not build yet import { type StrictModeLocaleMap, t } from 'express-intlayer'; import { type ErrorCodes, errorData } from './errorCodes'; /** * Custom error class that extends the native JavaScript Error class. * This class supports multilingual error messages and HTTP status codes. */ export class AppError extends Error { public isAppError: boolean = true; // Flag to identify AppError instances. public name: string; public isMultilingual: boolean = true; public errorKey: string; public title: string; public multilingualTitle: StrictModeLocaleMap<string>; public message: string; public multilingualMessage: StrictModeLocaleMap<string>; public httpStatusCode: HttpStatusCodes; public messageDetails?: object; /** * Constructor for the custom error class. * @param multilingualMessage - The error message which can be a simple string or a multilingual object. * @param httpStatusCode - Optional HTTP status code, defaults to 500 Internal Server Error. */ constructor( multilingualTitle: StrictModeLocaleMap<string>, multilingualMessage: StrictModeLocaleMap<string>, errorKey: string, httpStatusCode: HttpStatusCodes = HttpStatusCodes.INTERNAL_SERVER_ERROR_500, messageDetails?: object ) { const title = t(multilingualTitle); // Translate title based on current locale const message = t(multilingualMessage); // Translate message based on current locale. super(message); // Use translated message for the superclass constructor. this.title = title; this.multilingualTitle = multilingualTitle; this.message = message; this.multilingualMessage = multilingualMessage; // Store original message format for potential use. this.name = 'AppError'; this.errorKey = errorKey; this.httpStatusCode = httpStatusCode; // Set the HTTP status code. this.messageDetails = messageDetails; // Store any additional message details. // Capture the stack trace to exclude the constructor call. Error.captureStackTrace(this, this.constructor); } } export class GenericError extends AppError { constructor(errorKey: ErrorCodes, messageDetails?: object) { const multilingualTitle = errorData[errorKey].title; const multilingualMessage = errorData[errorKey].message; const httpStatusCode = errorData[errorKey].statusCode; super( multilingualTitle, multilingualMessage, errorKey, httpStatusCode, messageDetails ); } }