Metrics GuidesCapture

Capture

This guide explains how to use metrics for exporting metric definitions from your application.

With Provider Metrics

If your application defines one or more metrics, you can export them using the bake metrics:document command. This command will generate a list of metrics which you can export.

$ cd test/metrics/backend/.capture/
$ bake metrics:capture environment metrics:capture:list output --format json
[
  {
    "name": "my_metric",
    "type": "gauge",
    "description": "My metric",
    "unit": "seconds",
    "values": [

    ],
    "tags": [

    ],
    "sample_rates": [

    ]
  }
]

With Test Suite

If your application has a test suite which emits metrics, you can capture those as samples for the purpose of your documentation. This includes fields like tags.

$ cd test/metrics/backend/.capture/
$ bake metrics:capture run metrics:capture:list output --format json
[
  {
    "name": "my_metric",
    "type": "gauge",
    "description": "My metric",
    "unit": "seconds",
    "values": [
      1
    ],
    "tags": [
      "environment:test"
    ],
    "sample_rates": [
      1.0
    ]
  }
]

This uses a custom task called run in the above example, but you should probably consider using bake test which runs your test suite.