kuzzle-plugin-logger/lib/services/service.js

Kuzzle plugin that handles logs

/*
 * Kuzzle, a backend software, self-hostable and ready to use
 * to power modern apps
 *
 * Copyright 2015-2017 Kuzzle
 * mailto: support AT kuzzle.io
 * website: http://kuzzle.io
 *
 * 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
 *
 * https://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
  moment = require('moment');

class Service {

  constructor (config) {
    this.config = config;

    this.winston = null;
    this.addDate = null;
    this.dateFormat = this.config.dateFormat;
  }

  log (level, event, message) {
    let prefix = `[${event.toUpperCase()}] `;

    if (this.addDate) {
      prefix = moment().format(this.dateFormat) +  ' ' + prefix;
    }

    this.winston.log(level, prefix + message);
  }

}

module.exports = Service;