All files / src logger.js

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// @flow
 
import winston from 'winston';
 
export function getLogLevel(logLevel: ?string): string {
  if (!logLevel) {
    return 'error';
  }
 
  if (
    ['error', 'warn', 'info', 'verbose', 'debug', 'silly'].includes(logLevel)
  ) {
    return logLevel;
  }
 
  return 'error';
}
 
const level = getLogLevel(process.env.LOG_LEVEL);
 
export const transports = {
  // $FlowFixMe
  console: new winston.transports.Console({ level }),
};
 
// $FlowFixMe
const logger = winston.createLogger({
  transports: [transports.console],
});
 
export default logger;