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

@opencensus/web-initial-load

v0.0.7

Published

OpenCensus Web trace instrumentation for the initial page load

Downloads

32

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

kjinkjinofrobotsofrobotsgoogle-admingoogle-adminisaikevychisaikevychgoogle-wombotgoogle-wombotmayurkale22mayurkale22

Keywords

opencensusbrowsertracingprofilingstatsmetrics

Readme

OpenCensus Web Initial Load

Gitter chat

For overview and usage info see the main OpenCensus Web readme.

This package contains the logic for the initial load page tracing.

The library is in alpha stage and the API is subject to change.

Overview

This package is currently exporting the trace associated to the initial load trace which generates a root span for the user navigation experience until the browser load event fires. This root span, will have several child spans corresponding to the loaded resources such as CSS or JS scripts. These spans are generated via the browser's Navigation Timing and Resource Timing APIs. Also, the Long Tasks browser API is used to generate spans named as long js task for event loops taking more than 50 ms.

Additionally, the sampling decision for OpenCensus Web is done here and a global initial load span context is stored to be passed around OC Web. This allows other packages to use the same sampling decision or relate their data to the initial load trace. This is the case for a @opencensus/web-instrumentation-zone.

Usage

Currently the primary intended usage of OpenCensus Web is to collect spans from the resource timing waterfall of an initial page load and trace on-page user interactions with a series of features like automatic tracing for clicks and route transitions, custom spans, and browser Performance API data. See the OpenCensus Web readme for details.

In the future we would like to make it easy to generate custom spans that will be conveniently exported to the OpenCensus Agent. This package provides the exporter needed to hook up those custom generated spans to be sent to the agent and ultimately then to a trace storage backend. Although it's not fully wired up and supported yet, you're welcome to poke around the source code and try to use it!

Useful links

License

Apache 2.0 - See LICENSE for more information.