import { ErrorRequestHandler } from 'express';
import * as t from 'io-ts';
import { Left } from 'fp-ts/lib/Either';
export declare const errorHandler: ErrorRequestHandler;
export declare class IOTSError extends Error {
    readonly details: string[];
    constructor(details: Left<t.Errors>);
}
export declare class HttpError extends Error {
    readonly code: number;
    readonly details?: string[] | undefined;
    constructor(code: number, msg: string, details?: string[] | undefined);
    toBody(): object;
}
export declare class BadRequestHttpError extends HttpError {
    constructor(details: string[]);
}
export declare class NotFoundHttpError extends HttpError {
    readonly details: string[];
    constructor(details?: string[]);
}
export declare class InternalHttpError extends HttpError {
    constructor();
}