npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@bufferapp/logger

v1.0.3

Published

Logging for Buffer.com's node applications

Downloads

116

Readme

@bufferapp/logger

NPM Version Build Status

Provides standard middleware and functions for logging to stdout. In our production cluster these logs will be indexed in our application-logs Elasticsearch cluster as well as get backed up in s3.

Install

npm install @bufferapp/logger -SE

Usage

To log something, use the logger's info method which takes 2 arguments, an object for structured logging and a string for a message:

logger.info(<Object>, <String>);

To use as a normal logger, require and create the logger:

const logger = require('@bufferapp/logger')({ name: 'Some-Worker' });

function run(data) {
  // log something one-off...
  logger.info({
    metadata: {
      service: data.service,
    },
    stats: {
      processingTime: data.time,
      count: data.count,
    }
  }, `Successfully processed ${data.count} items`);
}

Middleware

const logMiddleware = require('@bufferapp/logger/middleware');

app = express();
app.use(logMiddleware({ name: 'My-App' }));
// ...other middleware and route handlers

Metadata

Add application metadata to your logs using the getMetadata option.

app.use(logMiddleware({
  getMetadata: (req) => {
    return {
      userId: req.session.userId,
      profileId: req.query.profileId,
    };
  },
}));

Stats

Add application stats to your logs. You receive the request object and the response time in milliseconds. For example, you can add tracking metrics to a req.trackingData attribute and then handle them in your getStats method:

app.use(logMiddleware({
  name: 'My-App',
  getStats: (req, responseTime) => {
    return {
      responseTime,
      processingTime: responseTime - req.trackingData.externalRequestTime,
      imagesScanned: req.trackingData.imagesScanned,
    };
  },
}));
// In your request handler
app.get('/get-images', (req, res) => {
  req.trackingData = {};
  getImages(req.url, (images) => {
    req.trackingData.imagesScanned = images.length;
    res.json(images);
  });
});

Params

Add logging of specific query string params using the getMetadata option.

app.use(logMiddleware({
  params: ['profile_id', 'utm_campaign'],
}));