export class HttpError extends Error { statusCode: number; constructor(message: string, statusCode: number) { super(message); this.name = "HttpError"; this.statusCode = statusCode; } } export class NotFoundError extends HttpError { constructor(message: string) { super(message, 404); this.name = "NotFoundError"; } } export class ForbiddenError extends HttpError { constructor(message: string) { super(message, 403); this.name = "ForbiddenError"; } } export class OpenIdError { message: string; constructor(message: string) { this.message = message; } } export class ValidationError extends HttpError { constructor(message: string) { super(message, 400) this.name = "ValidationError"; } }