next-logs/node/index.js

lightning fast, local server and client side logger for NextJS, NodeJS and JS Applications and Servers

var Config = /*#__PURE__*/function () {
  function Config(settings) {
    if (settings === void 0) {
      settings = {};
    }

    var _settings = settings,
        _settings$dir = _settings.dir,
        dir = _settings$dir === void 0 ? '' : _settings$dir;
    this.dir = dir;
    this.logFiles = {
      console: dir + "/console.log",
      info: dir + "/info.log",
      debug: dir + "/debug.log",
      warn: dir + "/warn.log",
      error: dir + "/error.log"
    };
  }

  var _proto = Config.prototype;

  _proto.setDir = function setDir(dir) {
    this.dir = dir;
    this.updateLogFiles();
  };

  _proto.updateLogFiles = function updateLogFiles() {
    var dir = this.dir;
    this.logFiles = {
      console: dir + "/console.log",
      info: dir + "/info.log",
      debug: dir + "/debug.log",
      warn: dir + "/warn.log",
      error: dir + "/error.log"
    };
  };

  return Config;
}();

var _process$env$LOGGER_D, _process, _process$env;

function format(message, type) {
  var date = new Date();
  var timestamp = "[" + date.toISOString().split('T')[0] + " " + date.toLocaleTimeString() + "]";
  var msg = timestamp + " LOGGER." + type.toUpperCase() + ": " + message;
  return msg;
}
var defaultSettings = {
  dir: (_process$env$LOGGER_D = (_process = process) === null || _process === void 0 ? void 0 : (_process$env = _process.env) === null || _process$env === void 0 ? void 0 : _process$env.LOGGER_DIR) != null ? _process$env$LOGGER_D : '/tmp'
};

var fs = require('fs');

var Logger = /*#__PURE__*/function () {
  function Logger(dir, logFiles) {
    var _this = this;

    this.logger = {
      log: this.log,
      info: function info(message, attributes) {
        if (message === void 0) {
          message = '';
        }

        if (attributes === void 0) {
          attributes = {};
        }

        return _this.log(message, attributes, 'info');
      },
      debug: function debug(message, attributes) {
        if (message === void 0) {
          message = '';
        }

        if (attributes === void 0) {
          attributes = {};
        }

        return _this.log(message, attributes, 'debug');
      },
      warn: function warn(message, attributes) {
        if (message === void 0) {
          message = '';
        }

        if (attributes === void 0) {
          attributes = {};
        }

        return _this.log(message, attributes, 'warn');
      },
      error: function error(message, attributes) {
        if (message === void 0) {
          message = '';
        }

        if (attributes === void 0) {
          attributes = {};
        }

        return _this.log(message, attributes, 'error');
      }
    };
    this.dir = dir;
    this.logFiles = logFiles;
  }

  var _proto = Logger.prototype;

  _proto.logFile = function logFile() {
    if (!fs || !('createWriteStream' in fs) || !this.dir) {
      return {};
    }

    if (!fs.existsSync(this.dir)) {
      fs.mkdirSync(this.dir);
    }

    return {
      console: new console.Console(fs.createWriteStream(this.logFiles.console, {
        flags: 'a'
      })),
      info: new console.Console(fs.createWriteStream(this.logFiles.info, {
        flags: 'a'
      })),
      debug: new console.Console(fs.createWriteStream(this.logFiles.debug, {
        flags: 'a'
      })),
      warn: new console.Console(fs.createWriteStream(this.logFiles.warn, {
        flags: 'a'
      })),
      error: new console.Console(fs.createWriteStream(this.logFiles.error, {
        flags: 'a'
      }))
    };
  };

  _proto.log = function log(message, attributes, type) {
    if (message === void 0) {
      message = '';
    }

    if (attributes === void 0) {
      attributes = {};
    }

    if (type === void 0) {
      type = 'info';
    }

    var msg = format(message, type);

    if (!this.dir) {
      return;
    }

    this.logFile().console.log(msg, JSON.stringify(attributes));
    this.logFile()[type].log(msg, JSON.stringify(attributes));
  };

  return Logger;
}();

function loggerAPI() {
  var dir = defaultSettings.dir;
  var config = new Config();
  config.setDir(dir);
  var logger = new Logger(config.dir, config.logFiles);
  return logger.logger;
}

var logger = loggerAPI();

module.exports = logger;
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