cicero-core/lib/logger.js

Cicero Core - implementation of Accord Protocol Template Specification

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

const winston = require('winston');
const fs = require('fs');
const env = process.env.NODE_ENV || 'development';
const tsFormat = () => (new Date()).toLocaleTimeString();

const logDir = 'log';
// Create the log directory if it does not exist
if (!fs.existsSync(logDir)) {
    fs.mkdirSync(logDir);
}

let logger = new(winston.Logger)({
    transports: [
        new(winston.transports.Console)({
            colorize: true,
            timestamp: tsFormat,
            level: 'info'
        }),
        new(winston.transports.File)({
            name: 'logs-file',
            filename: `${logDir}/trace.log`,
            level: env === 'development' ? 'debug' : 'info'
        })
    ]
});

logger.entry = logger.debug;
logger.exit = logger.debug;

logger.log('info', 'Logging initialized.', new Date());
module.exports = logger;