src/utils/Logger.js

   1 const Configuration = require('./Configuration');
   2 const Winston = require('winston');
   3
   4 const logger = Winston.createLogger({
   5   level: 'info',
   6   format: Winston.format.combine(Winston.format.splat(), Winston.format.json()),
   7   defaultMeta: {service: 'user-service'},
   8   transports: [
   9     //
  10     // - Write to all logs with level `info` and below to `combined.log`
  11     // - Write all logs error (and below) to `error.log`.
  12     //
  13     new Winston.transports.File({filename: Configuration.getErrorFile(), level: 'error'}),
  14     new Winston.transports.File({filename: Configuration.getLogFile()}),
  15   ],
  16 });
  17
  18 //
  19 // If enabled, log to the `console` with the format:
  20 // `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
  21 //
  22 if (Configuration.getConsoleLog()) {
  23   logger.add(new Winston.transports.Console({
  24     format: Winston.format.simple(),
  25   }));
  26 }
  27
  28 module.exports = logger;