raven-js/src/console.js

JavaScript client for Sentry

var utils = require('./utils');

var wrapMethod = function(console, level, callback) {
  var originalConsoleLevel = console[level];
  var originalConsole = console;

  if (!(level in console)) {
    return;
  }

  var sentryLevel = level === 'warn' ? 'warning' : level;

  console[level] = function() {
    var args = [].slice.call(arguments);

    var msg = utils.safeJoin(args, ' ');
    var data = {level: sentryLevel, logger: 'console', extra: {arguments: args}};

    if (level === 'assert') {
      if (args[0] === false) {
        // Default browsers message
        msg =
          'Assertion failed: ' + (utils.safeJoin(args.slice(1), ' ') || 'console.assert');
        data.extra.arguments = args.slice(1);
        callback && callback(msg, data);
      }
    } else {
      callback && callback(msg, data);
    }

    // this fails for some browsers. :(
    if (originalConsoleLevel) {
      // IE9 doesn't allow calling apply on console functions directly
      // See: https://stackoverflow.com/questions/5472938/does-ie9-support-console-log-and-is-it-a-real-function#answer-5473193
      Function.prototype.apply.call(originalConsoleLevel, originalConsole, args);
    }
  };
};

module.exports = {
  wrapMethod: wrapMethod
};