thunderhub/api/helpers/logger.ts

import path from 'path';
import { createLogger, format, transports } from 'winston';
import getConfig from 'next/config';

const { serverRuntimeConfig } = getConfig();
const { logLevel, nodeEnv } = serverRuntimeConfig;

const combinedFormat =
  nodeEnv === 'development'
    ? format.combine(
        format.label({
          label: path.basename(
            process && process.mainModule ? process.mainModule.filename : ''
          ),
        }),
        format.splat(),
        format.colorize(),
        format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
        format.printf(
          (info: any) =>
            `${info.timestamp} ${info.level} [${info.label}]: ${info.message}`
        )
      )
    : format.combine(
        format.label({
          label: path.basename(
            process && process.mainModule ? process.mainModule.filename : ''
          ),
        }),
        format.splat(),
        format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
        format.printf(
          (info: any) =>
            `${info.timestamp} ${info.level} [${info.label}]: ${info.message}`
        )
      );

export const logger = createLogger({
  level: logLevel,
  format: combinedFormat,
  transports: [new transports.Console()],
});