node-microsvc-lib/lib/json_logger.js

NodeJS microservice framework library

/**
 * Created by Marten Sies on 13/June/2019.
 */
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.JSONLogger = void 0;
const Bunyan = __importStar(require("bunyan"));
const interfaces_1 = require("./interfaces");
const printf = require("printf");
class JSONLogger {
    constructor(svc_configs) {
        this._attrs = {};
        this._logger = Bunyan.createLogger({
            name: svc_configs.app_name,
            instance_id: svc_configs.instance_id,
            env: svc_configs.env,
            app_version: svc_configs.app_version,
            streams: [
                {
                    level: 'trace',
                    stream: process.stdout
                }
            ],
        });
    }
    debug(message, ...optionalParams) {
        this._logger.debug.apply(this._logger, [
            this.create_message(interfaces_1.LogLevels.DEBUG, message, optionalParams),
        ]);
    }
    info(message, ...optionalParams) {
        this._logger.info.apply(this._logger, [
            this.create_message(interfaces_1.LogLevels.INFO, message, optionalParams),
        ]);
    }
    warn(message, ...optionalParams) {
        this._logger.warn.apply(this._logger, [
            this.create_message(interfaces_1.LogLevels.WARN, message, optionalParams),
        ]);
    }
    error(message, ...optionalParams) {
        this._logger.error.apply(this._logger, [
            this.create_message(interfaces_1.LogLevels.ERROR, message, optionalParams),
        ]);
    }
    fatal(message, ...optionalParams) {
        this._logger.fatal.apply(this._logger, [
            this.create_message(interfaces_1.LogLevels.FATAL, message, optionalParams),
        ]);
    }
    create_message(level, message = '', optionalParams = []) {
        let logMessage = {
            log_level: level,
        };
        if (typeof message === "object") {
            Object.assign(logMessage, message);
        }
        else if (typeof message === "string") {
            Object.assign(logMessage, { message: printf(message, ...optionalParams) });
        }
        else {
            Object.assign(logMessage, { message });
        }
        return logMessage;
    }
    create_child(attrs) {
        if (attrs)
            this._attrs = attrs;
        // @ts-ignore
        return this._logger.child(attrs, false);
    }
}
exports.JSONLogger = JSONLogger;
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