@project-sunbird/logger/logger/winstonAdopter.js

Sunbird logger library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WinstonAdopter = void 0;
var _a = require('winston'), createLogger = _a.createLogger, format = _a.format, transports = _a.transports;
require('winston-daily-rotate-file');
var stringify = require('json-stringify-safe');
var path = require("path");
var WinstonAdopter = /** @class */ (function () {
    function WinstonAdopter() {
        this.transports = [];
        this.exceptionHandlers = [];
    }
    WinstonAdopter.prototype.initialize = function (config) {
        this.config = config;
        this.transports = [this.getDailyRotateFileLogger('app')];
        this.exceptionHandlers = [this.getDailyRotateFileLogger('exceptions')];
        if (process.env.NODE_ENV !== 'production') {
            this.transports.push(new transports.Console());
            this.exceptionHandlers.push(new transports.Console());
        }
        var combineMessage = format(function (info, opts) {
            var splat = info[Symbol.for('splat')] || [];
            if (splat.length) {
                info.message = typeof info.message === 'object' ? JSON.stringify(info.message) : info.message;
                splat.forEach(function (arg) {
                    if (typeof arg === 'object') {
                        info.message = info.message + ' ' + stringify(arg);
                    }
                    else {
                        info.message = info.message + ' ' + arg;
                    }
                });
                info[Symbol.for('splat')] = [];
            }
            return info;
        });
        this.logger = createLogger({
            level: this.config.logLevel,
            defaultMeta: this.config.context,
            format: format.combine(combineMessage(), // should be added at first
            format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }), format.json()),
            transports: this.transports,
            exceptionHandlers: this.exceptionHandlers,
        });
        return true;
    };
    WinstonAdopter.prototype.enableDebugMode = function (time, logLevel, combineLogs) {
        var _this = this;
        if (time === void 0) { time = 1000 * 60 * 10; }
        if (logLevel === void 0) { logLevel = 'debug'; }
        if (combineLogs === void 0) { combineLogs = false; }
        var dailyFileLogger = combineLogs ? this.getDailyRotateFileLogger('app') : this.getDailyRotateFileLogger('debug');
        this.logger
            .clear()
            .add(dailyFileLogger)
            .add(new transports.Console());
        this.logger.level = logLevel;
        setTimeout(function () {
            _this.logger.clear();
            _this.logger.level = _this.config.logLevel;
            _this.logger.add(_this.getDailyRotateFileLogger('app')).add(new transports.Console());
        }, time);
        return true;
    };
    WinstonAdopter.prototype.getDailyRotateFileLogger = function (fileName) {
        return new transports.DailyRotateFile({
            auditFile: path.join(this.config.logBasePath, 'audit.json'),
            filename: path.join(this.config.logBasePath, fileName + '-%DATE%.log'),
            datePattern: 'YYYY-MM-DD',
            zippedArchive: true,
            maxSize: '10m',
            maxFiles: '10d',
            json: true,
        });
    };
    WinstonAdopter.prototype.getLogs = function (options) {
        var _this = this;
        return new Promise(function (resolve, reject) {
            _this.logger.query(options, function (err, results) {
                if (err) {
                    reject(err);
                }
                resolve(results);
            });
        });
    };
    return WinstonAdopter;
}());
exports.WinstonAdopter = WinstonAdopter;