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43 lines
No EOL
1.1 KiB
CoffeeScript
43 lines
No EOL
1.1 KiB
CoffeeScript
fs = require 'fs'
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path = require 'path'
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config = require '../../server_config'
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StatsD = require 'node-statsd'
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if config.statsd
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realClient = new StatsD(config.statsd)
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else
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mock = new StatsD(mock: true)
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exports.client = realClient or mock
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exports.middleware = (req, res, next) ->
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req.statsd = exports.client
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if realClient
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time = process.hrtime();
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cleanup = ->
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res.removeListener 'finish', recordMetrics
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res.removeListener 'error', cleanup
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res.removeListener 'close', cleanup
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recordMetrics = ->
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diff = process.hrtime(time);
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ms = (diff[0] * 1000 + diff[1] / 1e6);
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path = req.route?.path or '/*'
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stat = req.method + "." + path.replace /[^A-Za-z0-9]+/g, '_'
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realClient.timing stat, ms
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res.once 'finish', recordMetrics
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res.once 'error', cleanup
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res.once 'close', cleanup
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else
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req.statsd = mock
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next() unless not next
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exports.trace = (name, callback) ->
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return callback unless realClient
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time = process.hrtime()
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(args...) ->
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realClient.timing name, ms
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return callback.apply(this, args) |