error-advisor/lib/advisor/error/server_error/ServiceUnavailable.d.ts

NPM module that aim to facilitate the error handling by providing http errors classes and also let you customize business errors as well with handy and clean way.

import { StatusCode } from "../../enum/StatusCode";
export default class ServiceUnavailable extends Error {
    statusCode: StatusCode;
    type: string;
    timestamp: number;
    constructor(message?: string);
}