mof-statsd

mof-statsd which is a wrapper of statsd-client is a middleware of floodesh

Install

npm install mof-statsd

Usage

const Worker = require("floodesh/worker")
const request = require('mof-request')
const statsd = require('mof-statsd')

const options = {
	host:"host of statsd daemon",
	port:8125,
	debug: fase
};

worker.use(statsd(options));// make sure statsd middlerware is before middleware which have to use statsd
worker.use(request());

The mof-request default sends a counting metric while requesting, and also a counting metric if error. Once a response comes back, it sends a timing metric wich represents a network latency.

Customise

Below is an example for sending a metric in your middleware:

//example.js
module.exports = (ctx, next)=>{
	//send a counter metric
	ctx.scounter("example");

	//a `timing` metric
	//first we set a beginning time
	ctx.ts = new Date();

	//...

	// then we send the diff, statsd automatically compute the diff between the moment calling the fucntion and the beginning time
	ctx.stiming("processtime");
}