yodelay/dist/format.js

Log and send error metrics off with ease.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _winston = require("winston");

var _winston2 = _interopRequireDefault(_winston);

var _moment = require("moment");

var _moment2 = _interopRequireDefault(_moment);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

class FormatLogger {
  constructor(params) {
    this.logger = params.logger;
    this.logger.logMessageFormat = this.logMessageFormat.bind(this);
    this.format = params.format;
    this.appName = params.appName;
    this.debugContext = params.debugContext;
  }

  filterContext() {
    var _this = this;

    return _winston2.default.format(function (info) {
      if (_this.debugContext !== null && info.context !== _this.debugContext) {
        return false;
      }

      return info;
    })();
  }

  simpleBaseFormat() {
    const base = _winston2.default.format.printf(function (info) {
      const string = `${(0, _moment2.default)(info.timestamp)} [${info.app}] ${info.context ? `[context: ${info.context}]}` : ""} ${info.level}: ${info.message}`;

      if (info.data) {
        return `${string} ${JSON.stringify(info.data)}`;
      }

      return string;
    });

    return _winston2.default.format.combine(_winston2.default.format.timestamp(), base);
  }

  logMessageFormat(message, data, context) {
    let logMessage = {
      app: this.appName,
      message: message
    };

    if (data) {
      logMessage.data = data;
    }

    if (context) {
      logMessage.context = context;
    }

    return logMessage;
  }

  setFormat() {
    switch (this.format) {
      case "json":
        this.logger.add(new _winston2.default.transports.Console({
          format: _winston2.default.format.combine(this.filterContext(), _winston2.default.format.timestamp(), _winston2.default.format.json())
        }));

        break;
      case "simple":
        this.logger.add(new _winston2.default.transports.Console({
          format: _winston2.default.format.combine(this.filterContext(), _winston2.default.format.colorize(), _winston2.default.format.simple(), this.simpleBaseFormat())
        }));

        break;
      default:
        this.logger.add(new _winston2.default.transports.Console({
          format: _winston2.default.format.combine(this.filterContext(), _winston2.default.format.colorize(), _winston2.default.format.simple(), simpleBase)
        }));
    }
  }
}

exports.default = FormatLogger;
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