import type { KobpServiceContext, Middleware } from '../context';
import { Loggy } from '..';
export declare type AuditMessagePipelineEventType = 'start' | 'success' | 'error';
/**
 * AuditMessage pipeline callback.
 *
 * @param message - a original message that previous pipeline has produced.
 * @param event - the event denote what has in particular event.
 * @param context - the request's context.
 * @param error - error computed by errorPipeline.
 */
export declare type AuditMessagePipeline = (message: string, event: AuditMessagePipelineEventType, context: KobpServiceContext, error?: Error) => string;
export declare const withJson: () => Middleware;
export declare const withJsonConfig: {
    /**
     * Ideal place to wrap the error before it emit via reponse.json()
     */
    errorPipeline: ((err: any, loggy?: Loggy) => Error)[];
    /**
     * Run 2 times per API call.
     *
     * - First when API has been first called: event = 'start'
     * - Second when API has deem service will returns which can be either: event = 'success' or 'error'
     */
    auditMessagePipeline: AuditMessagePipeline[];
    /**
     * path that this middleware should ignored.
     * Default to `/healthcheck`
     */
    suppressPath: string;
};