logger-monitor/lib/logger.js.flow

Quick and easy logging for JS.

// @flow strict

type Log = {
  message: Message,
  timestamp: Date,
  time?: number,
  type: LogType
};

type LogType = "info" | "warning" | "error";

type Message = string | Error | Object;

type Settings = {
  showTimestamp?: boolean,
  showInfoLogs?: boolean,
  [key: string]: boolean | string | void
};

type Logs = Log[];

type Timers = {
  [key: string]: number
};

declare class Logger {
  settings: Settings;
  logs: Logs;
  timers: Timers;

  static configure(settings?: Settings): void;

  static createLog(message: Message, type: LogType, time?: number): Log;

  static info(message: Message, timerId?: string): void;

  static warning(message: Message, timerId?: string): void;

  static error(message: Message, timerId?: string): void;

  static startTimer(): string;

  static endTimer(id: string | undefined): number | undefined;
}

declare export default Logger;