Voyeur.io Collector

The collector is the engine room of Voyeur. A number of different collection agents are implemented, and more are on their way.

Usage

Using the voyeur.io collector in a project is very simple. First install the npm package:

npm install voyeur

Then, in your application code doing something similar to the following:

var voyeur = require('voyeur'),
    collector = voyeur.collectToDB();

// other stuff goes here

// on exit, stop collecting (this closes the db nicely)
process.on('exit', function() {
    collector.stop();
});

No in the above configuration, the collector will happily run up the default agents and save the data to a leveldb database in the samples directory. Presumably, however, you also want to get the data out and report on it somehow.

The simplest way to do this is through using the Connect middleware that is included in the voyeur package:

If for instance you are using express, you could do something like the following:

var app = express.createServer();

app.configure(function() {
    app.use(express.static(__dirname + '/public'));
    app.use(collector.json(collector.db))
});

By default this will expose a /samples route that will respond to both request for samples in the last 30 seconds (configurable) and also samples after a certain tick count using the /samples/123456789 route.

An example of this kind of configuration is available in the voyeur.io collector demo site.

Advanced Usage

To be completed