wa-chat-server/lib/class/Logger/LoggerDriverConsole.js

Watson Assistant powered chat server

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.LoggerDriverConsole = void 0;
const LoggerDriver_1 = require("../Logger/LoggerDriver");
const util_1 = __importDefault(require("util"));
class LoggerDriverConsole extends LoggerDriver_1.LoggerDriver {
    constructor(config, consoleObject = console) {
        super();
        this.config = config;
        this.consoleObject = consoleObject;
    }
    /*
     * This method's purpose is to reduce the log size by skipping private properties; it also
     * sanitizes the inner recursion in logged objects
     */
    pruneForLog(obj, alreadyLogged = new Set()) {
        if (alreadyLogged.has(obj)) {
            return '[RECURSION]';
        }
        if (obj instanceof Array) {
            alreadyLogged.add(obj);
            return obj.map((el) => this.pruneForLog(el, alreadyLogged));
        }
        if (obj instanceof Object) {
            alreadyLogged.add(obj);
            return Object.entries(obj)
                .filter(([k]) => !/^_/.test(k))
                .reduce((result, [k, v]) => {
                result[k] = this.pruneForLog(v, alreadyLogged);
                return result;
            }, {});
        }
        return obj;
    }
    log(level, msg, params) {
        return __awaiter(this, void 0, void 0, function* () {
            const msgToLog = `[${new Date().toISOString().replace(/\..*/, '')}] ${msg}`;
            let paramsToLog = params;
            if (this.config.VCAP_APP_PORT) {
                paramsToLog = [
                    util_1.default.inspect(params.length === 1 ? this.pruneForLog(params[0]) : this.pruneForLog(params), {
                        depth: null,
                    }),
                ];
            }
            return this.consoleObject[level](msgToLog, ...paramsToLog);
        });
    }
}
exports.LoggerDriverConsole = LoggerDriverConsole;