src/utils/Logger.ts

   1 import { Logger, createLogger, format, transport } from 'winston';
   2
   3 import Configuration from './Configuration';
   4 import DailyRotateFile from 'winston-daily-rotate-file';
   5 import { Format } from 'logform';
   6 import TransportType from 'winston/lib/winston/transports/index.js';
   7 import Utils from './Utils';
   8
   9 let transports: transport[];
  10 if (Configuration.getLogRotate()) {
  11   const logMaxFiles = Configuration.getLogMaxFiles();
  12   transports = [
  13     new DailyRotateFile({
  14       filename: Utils.insertAt(
  15         Configuration.getLogErrorFile(),
  16         '-%DATE%',
  17         Configuration.getLogErrorFile().indexOf('.log')
  18       ),
  19       level: 'error',
  20       maxFiles: logMaxFiles,
  21     }),
  22     new DailyRotateFile({
  23       filename: Utils.insertAt(
  24         Configuration.getLogFile(),
  25         '-%DATE%',
  26         Configuration.getLogFile().indexOf('.log')
  27       ),
  28       maxFiles: logMaxFiles,
  29     }),
  30   ];
  31 } else {
  32   transports = [
  33     new TransportType.File({ filename: Configuration.getLogErrorFile(), level: 'error' }),
  34     new TransportType.File({ filename: Configuration.getLogFile() }),
  35   ];
  36 }
  37
  38 const logger: Logger = createLogger({
  39   level: Configuration.getLogLevel(),
  40   format: format.combine(format.splat(), (format[Configuration.getLogFormat()] as () => Format)()),
  41   transports: transports,
  42 });
  43
  44 //
  45 // If enabled, log to the `console` with the format:
  46 // `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
  47 //
  48 if (Configuration.getLogConsole()) {
  49   logger.add(
  50     new TransportType.Console({
  51       format: format.combine(
  52         format.splat(),
  53         (format[Configuration.getLogFormat()] as () => Format)()
  54       ),
  55     })
  56   );
  57 }
  58
  59 export default logger;