snapi2/lib/logger.js

An API-first RESTful server framework built on Swagger and Restify

// Generated by CoffeeScript 1.12.7
'use strict';
var Bunyan, Logger, errorToJson;

Bunyan = require('bunyan');


/*
  Define a special toJSON property for serializing Error objects
  Allows logging of custom properties including nested Error objects
 */

errorToJson = {
  configurable: true,
  value: function() {
    var alt, storeKey;
    alt = {};
    storeKey = function(key) {
      return alt[key] = this[key];
    };
    Object.getOwnPropertyNames(this).forEach(storeKey, this);
    return alt;
  }
};

Object.defineProperty(Error.prototype, 'toJSON', errorToJson);

module.exports = Logger = (function() {
  function Logger(opts) {
    var logConfig;
    opts.log = opts.log || {};
    if (opts.log.logger) {
      this.log = opts.log.logger;
    } else {
      logConfig = {};
      logConfig.name = opts.name || 'snapi';
      logConfig.streams = opts.log.streams || [
        {
          path: opts.log.path || './snapi.log',
          type: opts.log.type || 'rotating-file',
          level: opts.log.level || 'warn',
          period: opts.log.period || '1d',
          count: opts.log.count || 10
        }
      ];
      this.log = new Bunyan(logConfig);
    }
  }

  Logger.prototype.unhandledRejection = function() {
    return (function(_this) {
      return function(err) {
        return _this.log.error({
          unhandledRejection: true,
          err: err
        }, err.message);
      };
    })(this);
  };

  Logger.prototype.unhandledProcessException = function() {
    return (function(_this) {
      return function(err) {
        return _this.log.fatal({
          unhandledProcessException: true,
          err: err
        }, err.message);
      };
    })(this);
  };

  Logger.prototype.unhandledRestifyException = function() {
    return (function(_this) {
      return function(req, res, route, err) {
        _this.log.error({
          unhandledRestifyException: true,
          req: req,
          res: res,
          route: route,
          err: err
        }, err.message);
        if (!res.headersSent) {
          return res.send(500, 'Internal server error');
        }
      };
    })(this);
  };

  return Logger;

})();