Metrics module

The Metrics module for logging (node.js > 4.*)

For example log response time from Google with StatsD

include 'console' to config.enabledMetrics for pm2 logs

const Metrics = require('xpm-metrics');
const metrics = new Metrics({
  metricTargets: [
    {
      name: 'xpm-metrics-statsd',
      config: {
        host: 'example.host',
        port: 8124
      }
    }
  ],
  enabledMetrics: ['console', 'xpm-metrics-statsd'],
  prefix: 'test_prefix.%hostname%'
});
const request = require('request-promise');
const params = {
    uri: 'https://www.google.com',
    resolveWithFullResponse: true,
    time: true
};

request(params)
    .then((res) => metrics.logTime('google_response', res.elapsedTime, 'test'));

find obtained logs with grep

grep -h -r 'google_response' ~/.pm2/logs/

result:

2017-02-03T09:25:01.329Z google_response 561 "test"
2017-02-03T09:34:32.153Z google_response 858 "test"
2017-02-03T09:36:38.098Z google_response 357 "test"

print in CSV-format

grep -h -r 'google_response' ~/.pm2/logs/ | awk '{print $1 ";" $2 ";" $3 ";" $4}'

result:

2017-02-03T09:25:01.329Z;google_response;561;"test"
2017-02-03T09:34:32.153Z;google_response;858;"test"
2017-02-03T09:36:38.098Z;google_response;357;"test"

For metricTargets can be used:

• xpm-metrics-graylog
• xpm-metrics-statsd