@boost/log/mjs/createLogger.mjs

Lightweight level based logging system.

import { isObject } from '@boost/common';
import { LOG_LEVELS } from './constants.mjs';
import { Logger } from './Logger.mjs';
function pipeLog(logger, level) {
  return (...args) => {
    let metadata = {};
    let message = '';
    if (isObject(args[0])) {
      metadata = args.shift();
    }
    message = args.shift();
    logger.log({
      args,
      level,
      message,
      metadata
    });
  };
}

/**
 * Create and return a logger with any configured transports.
 */
function createLogger(options) {
  const logger = new Logger(options);
  const log = pipeLog(logger);
  LOG_LEVELS.forEach(level => {
    Object.defineProperty(log, level, {
      value: pipeLog(logger, level)
    });
  });
  Object.defineProperty(log, 'disable', {
    value: () => {
      logger.disable();
    }
  });
  Object.defineProperty(log, 'enable', {
    value: () => {
      logger.enable();
    }
  });
  return log;
}
export { createLogger };
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