arazzo: 1.0.1
info:
  title: Datadog Manage Metric Metadata
  summary: Read a metric's tag configuration, then update its tags and metadata.
  description: >-
    A governance pattern for managing custom metric cardinality in Datadog. The
    workflow reads the existing tag configuration for a metric to capture its
    current type and tag keys, then issues a merge-patch update to change the
    set of indexed tag keys and percentile behavior. Every step spells out its
    request inline so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: datadogMetricsApi
  url: ../openapi/datadog-metrics-openapi.yml
  type: openapi
workflows:
- workflowId: manage-metric-metadata
  summary: Read a metric tag configuration then update its tags.
  description: >-
    Fetches the tag configuration for a metric and then updates the set of
    indexed tag keys and percentile behavior.
  inputs:
    type: object
    required:
    - metricName
    - tags
    properties:
      metricName:
        type: string
        description: The name of the metric to manage (e.g. system.cpu.user).
      tags:
        type: array
        description: Updated list of tag keys to include when storing metric data.
        items:
          type: string
      includePercentiles:
        type: boolean
        description: Whether to include percentile aggregations (distribution metrics only).
  steps:
  - stepId: getTagConfiguration
    description: >-
      Read the current tag configuration for the metric to capture its type and
      existing indexed tag keys before updating.
    operationId: getMetricTagConfiguration
    parameters:
    - name: metric_name
      in: path
      value: $inputs.metricName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      metricId: $response.body#/data/id
      currentTags: $response.body#/data/attributes/tags
  - stepId: updateTagConfiguration
    description: >-
      Update the metric tag configuration with the new set of indexed tag keys
      and percentile behavior using merge-patch semantics.
    operationId: updateMetricTagConfiguration
    parameters:
    - name: metric_name
      in: path
      value: $inputs.metricName
    requestBody:
      contentType: application/json
      payload:
        data:
          type: manage_tags
          id: $inputs.metricName
          attributes:
            tags: $inputs.tags
            include_percentiles: $inputs.includePercentiles
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      updatedId: $response.body#/data/id
      updatedTags: $response.body#/data/attributes/tags
  outputs:
    updatedId: $steps.updateTagConfiguration.outputs.updatedId
    updatedTags: $steps.updateTagConfiguration.outputs.updatedTags