# OpenCensus Stats(Metrics) API Node.js Samples OpenCensus is a toolkit for collecting application performance and behavior data. It currently includes 3 apis: stats, tracing and tags. ## Table of Contents * [Setup](#setup) * [Samples](#samples) * [Stats API](#stats-api) ## Setup 1. Read [Prerequisites][prereq] and [How to run a sample][run] first. 1. Install dependencies: npm install [prereq]: ../README.md#prerequisites [run]: ../README.md#how-to-run-a-sample ## Samples ### Stats API View the [documentation][stats_0_docs] or the [source code][stats_0_code]. __Usage:__ `node metrics-quickstart.js` [stats_0_docs]: https://opencensus.io/stats/ [stats_0_code]: metrics-quickstart.js