import * as PromClient from 'prom-client';
import { CustomLogger } from "../CustomLogger";
export declare type HealthCheckResult = {
    name: string;
    up: boolean;
};
export declare type DependencyTimePayload = {
    name: string;
    type: string;
    statusCode: number;
    method: string;
    addr: string;
    errorMessage: string;
    start: [number, number];
};
export declare type HealthCheckResultCallBack = (result: HealthCheckResult) => void;
export declare type HealthCheckCallback = (callback: HealthCheckResultCallBack) => void;
export declare type PartHandler = Partial<DependencyTimePayload>;
declare type handlerResponse = (part: PartHandler) => <T>(payload: T) => T;
declare type handlerError = (part: PartHandler) => (err: any) => any;
declare type getHandlerResponse = (part: PartHandler) => handlerResponse;
declare type getHandlerError = (part: PartHandler) => handlerError;
export interface metricsHandlers {
    handleResponse: handlerResponse;
    handleError: handlerError;
}
export declare type RequestTimePayload = {
    type: string;
    status: number;
    method: string;
    addr: string;
    errorMessage?: string;
    start: [number, number];
};
export declare class MetricsService {
    private logger;
    readonly promClient: typeof PromClient;
    readonly buckets: number[];
    private readonly dependencyUp;
    private dependencyRequestSeconds;
    private readonly reqSeconds;
    constructor(logger: CustomLogger);
    watchDependencies(healthCheck: HealthCheckCallback): void;
    collectDependencyTime: (payload: DependencyTimePayload) => void;
    collectRequestTime: (payload: RequestTimePayload) => void;
    setupApplicationInfo: (name: string, version: string, info?: any) => void;
    private registerDependencyMetrics;
    private diffTimeInSeconds;
    getHandlerSuccess: getHandlerResponse;
    getHandlerError: getHandlerError;
}
export {};