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Datadog Custom Metric

Pigeon-http comes with a Datadog custom metric integration to gather metrics during HTTP calls. It is enabled by default, but you need to set some credentials to make it work.

Set environment variable

By default, Pigeon-http needs to access these environment variables.

STATSD_HOST=
STATSD_PORT=
DD_ENV=
DD_SERVICE=

TO DO: Make it configurable.

Set custom metric name

When initializing Pigeon-http, you need to specify the request name.

p = Pigeon::Client.new('http_integration')

'http_integration' will become a custom metric namespace.

Gather custom metric

By default, Pigeon-http will collect these metrics:

  • Latency
  • Througput
  • Status code

So, based on the custom metric namespace above, each metric will be named as:

  • http_integration_latency
  • http_integration_througput
  • http_integration_status

Custom metric tags

If you want to group your custom metric, Pigeon-http comes with several tags:

  • host (can be IP address or domain name)
  • http (HTTP status code)
  • retry (retryable request)

TO DO: Make it configurable.

Example Graph

The image below will demonstrate how to create a simple graph using the gathered custom metrics:

Example Graph