Amplitude Feature Flag Rollout

arazzo: 1.0.1
info:
  title: Amplitude Feature Flag Rollout
  summary: Create a feature flag, read it back, enable it, and confirm it appears in the flag list.
  description: >-
    Automates a feature flag rollout through the Amplitude Experiment Management
    API. The workflow creates a new flag with variants, retrieves it by its
    returned ID to confirm the configuration, patches it to enable the flag, and
    lists all flags to confirm the rollout. This is the pattern teams wire into
    CI/CD pipelines to manage flag lifecycle without the Amplitude UI. All steps
    authenticate with a Management API key as a bearer token. 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: experimentManagementApi
  url: ../openapi/amplitude-experiment-management-api-openapi.yml
  type: openapi
workflows:
- workflowId: roll-out-flag
  summary: Create a feature flag, read it, enable it, and list all flags.
  description: >-
    Drives a feature flag from creation through enablement, reading it back and
    confirming it is present in the project flag list so the full rollout is
    exercised end to end.
  inputs:
    type: object
    required:
    - bearerToken
    - key
    properties:
      bearerToken:
        type: string
        description: The Experiment Management API key passed as a bearer token.
      key:
        type: string
        description: The unique key for the flag, used to reference it in code.
      name:
        type: string
        description: The display name of the flag.
      description:
        type: string
        description: A description of the flag's purpose.
      variants:
        type: array
        description: Array of variant configurations for the flag.
        items:
          type: object
      bucketingKey:
        type: string
        description: The property used for bucketing users into variants.
  steps:
  - stepId: createFlag
    description: >-
      Create a new feature flag with the supplied key, variants, and bucketing
      configuration.
    operationId: createFlag
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.bearerToken"
    requestBody:
      contentType: application/json
      payload:
        key: $inputs.key
        name: $inputs.name
        description: $inputs.description
        variants: $inputs.variants
        bucketingKey: $inputs.bucketingKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      flagId: $response.body#/id
      state: $response.body#/state
  - stepId: getFlag
    description: >-
      Retrieve the newly created flag by its ID to confirm its full
      configuration including variants and deployments.
    operationId: getFlag
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.bearerToken"
    - name: id
      in: path
      value: $steps.createFlag.outputs.flagId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      key: $response.body#/key
      enabled: $response.body#/enabled
  - stepId: enableFlag
    description: >-
      Patch the flag to enable it. Only the enabled field is changed; all other
      configuration is left intact.
    operationId: updateFlag
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.bearerToken"
    - name: id
      in: path
      value: $steps.createFlag.outputs.flagId
    requestBody:
      contentType: application/json
      payload:
        enabled: true
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      enabled: $response.body#/enabled
      state: $response.body#/state
  - stepId: listFlags
    description: >-
      List all flags in the project to confirm the enabled flag is present.
    operationId: listFlags
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.bearerToken"
    - name: limit
      in: query
      value: 100
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      flags: $response.body#/flags
  outputs:
    flagId: $steps.createFlag.outputs.flagId
    enabled: $steps.enableFlag.outputs.enabled
    flags: $steps.listFlags.outputs.flags