/// <reference types="express" />
import { Interceptor, InvocationContext, Provider, ValueOrPromise } from '@loopback/core';
import { Request, Response } from '@loopback/rest';
import morgan from 'morgan';
import { Logger } from 'winston';
/**
 * A local interceptor that provides logging for method invocations.
 */
export declare class InvocationLoggingInterceptor implements Provider<Interceptor> {
    private logger;
    constructor(logger: Logger);
    value(): <T>(invocationCtx: InvocationContext, next: () => ValueOrPromise<T>) => Promise<T>;
    intercept<T>(invocationCtx: InvocationContext, next: () => ValueOrPromise<T>): Promise<T>;
}
export interface AccessLogOptions extends morgan.Options<Request, Response> {
    format?: string | morgan.FormatFn;
}
/**
 * A global interceptor that provides logging for http requests/responses.
 */
export declare class HttpAccessLogInterceptor implements Provider<Interceptor> {
    private logger;
    private morganOptions;
    constructor(logger: Logger, morganOptions?: AccessLogOptions);
    value(): <T>(invocationCtx: InvocationContext, next: () => ValueOrPromise<T>) => Promise<T>;
    intercept<T>(invocationCtx: InvocationContext, next: () => ValueOrPromise<T>): Promise<T>;
}