Graphite TCP

Graphite TCP client for Node.js

• Uses the plaintext Graphite protocol
• Group values for a configurable interval and send 1 request
• No other module dependencies

Install

npm install graphite-tcp

Usage

var graphite = require('graphite-tcp')
var metric = graphite.createClient([options])
metric.add(name, value)
metric.put(name, value)

options is an object with the following defaults:

{
  host: '127.0.0.1', // graphite server host or ip
  port: 2003, // graphite server tcp port
  family: '4', // TCP family
  prefix: '', // a prefix to prepend to the name of all metrics
  suffix: '', // a suffix to append to the name of all metrics
  verbose: false, // log messages to console
  interval: 5000, // group metrics for 5s and send only 1 request
  callback: null // callback(error, metrics) called when metrics are sent
}

Example

var os = require('os')
var graphite = require('graphite-tcp')
var metric = graphite.createClient({
  prefix: 'productname',
  suffix: os.hostname(),
  interval: 60000,
  verbose: true,
  callback: function(error, metricsSent) {
    console.log('Metrics sent\n'+ metricsSent)
  }
})

metric.add('my.test.metric1', 10) // add 10
metric.add('my.test.metric1', 20) // add 20 (previous 10 + 20 = 30)
metric.put('my.test.metric2', 1) // put 1
metric.put('my.test.metric2', 5) // put 5 (overwrite 1 with 5)

Will generate

productname.my.test.metric1.machinename 30 1447193969
productname.my.test.metric2.machinename 5 1447193969

API

metric.add

During the interval time option, if 2 or more metrics with the same name are sent, metrics will be added (summed)

metric.add('my.test.metric', 20)
metric.add('my.test.metric', 10)

What will actually be sent to the server after interval is

my.test.metric 30

metric.put

During the interval time option, if 2 or more metrics with the same name are sent, the last one will be used

metric.put('my.test.metric', 20)
metric.put('my.test.metric', 10)

What will actually be sent to the server after interval is

my.test.metric 10

metric.close

Close the underlying UDP client socket

metric.close()

License

Licensed under the MIT license. Credit to @fermads for his graphite-udp repo