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connect-loggly

v0.1.0

Published

loggly logging middleware for connect

Downloads

1

Readme

connect-loggly

A loggly logger middleware for connect.

This is a small piece of middleware to help you log important information about a request to loggly using their JSON api.

Install

npm install connect-loggly --save

Usage

var loggly = require('loggly').createClient(myLogglyConfig)
  , connectLoggly = require('connect-loggly');

// If you are using express (otherwise just say `connect`)
express.use(connectLoggly(loggly))

Advanced

You can change what the default message looks like. Like connect.logger(), this middleware deals in tokens which can be customly added using the token function. First, lets see how we can add new tokens:

// Lets add some tokens!

// A user-id from the req.user object (this would work for mongoose/passport)
connectLoggly.token('user-id', function (req) {
  return req.user && req.user._id;
});

// A custom field from the session
connectLoggly.token('session', function (req, res, field) {
  return req.session && req.session[field];
});

And now we can change what the logged JSON is:

var logglyRequestTokens = {
  // Default fields
  url: true,
  method: true,
  'response-time': true,
  date: true,
  status: true,
  'user-agent': true,
  'http-version': true,

  // Custom headers
  'req': 'Accepts',
  'res': 'Location',

  // Custom tokens (see below)
  'user-id': true,
  'session': 'someFieldInTheSession',

  // Static information
  'server-instance': 'abc123'
};

express.use(connectLoggly(logglyClient, logglyRequestTokens));

Note: Just be sure to add all custom tokens BEFORE setting up the middleware.

Tokens List

  • url (default) - URL
  • method (default) - HTTP Method
  • response-time (default) - Response time
  • date (default) - UTC time
  • status (default) - HTTP status
  • referrer - Request header referrer
  • http-version (default) - HTTP version
  • user-agent (default) - Request header User Agent
  • req (accepts field) - Arbitrary request header
  • res (accepts field) - Arbitrary response header

License

See LICENSE file