Refinitiv Eikon News Headline to Story

arazzo: 1.0.1
info:
  title: Refinitiv Eikon News Headline to Story
  summary: Search news headlines for a query, then fetch the full story body for the most recent match.
  description: >-
    A two-hop news pattern on the Refinitiv Data Platform. The workflow searches
    financial news headlines matching a query and date window, captures the
    story identifier of the first headline, and branches: when a headline is
    returned it retrieves the full story body, metadata, and associated
    subjects. Each 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: dataPlatformApi
  url: ../openapi/refinitiv-eikon-data-platform-openapi.yml
  type: openapi
workflows:
- workflowId: news-headline-to-story
  summary: Find a news headline by query and retrieve its full story content.
  description: >-
    Searches news headlines matching the supplied query and date range, captures
    the storyId of the first headline, and when present, retrieves the full
    story body and metadata.
  inputs:
    type: object
    required:
    - accessToken
    - query
    properties:
      accessToken:
        type: string
        description: OAuth 2.0 bearer access token obtained from the token endpoint.
      query:
        type: string
        description: Free-text search query for news headlines.
      count:
        type: integer
        description: Maximum number of headlines to return (1-100).
        default: 10
      dateFrom:
        type: string
        description: Start date for filtering headlines in ISO 8601 format.
      dateTo:
        type: string
        description: End date for filtering headlines in ISO 8601 format.
  steps:
  - stepId: getHeadlines
    description: >-
      Search financial news headlines matching the query and optional date
      window, and capture the storyId of the first result.
    operationId: getNewsHeadlines
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: query
      in: query
      value: $inputs.query
    - name: count
      in: query
      value: $inputs.count
    - name: dateFrom
      in: query
      value: $inputs.dateFrom
    - name: dateTo
      in: query
      value: $inputs.dateTo
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      headlines: $response.body#/data
      storyId: $response.body#/data/0/storyId
    onSuccess:
    - name: headlineFound
      type: goto
      stepId: getStory
      criteria:
      - context: $response.body
        condition: $.data.length > 0
        type: jsonpath
    - name: noHeadlines
      type: end
      criteria:
      - context: $response.body
        condition: $.data.length == 0
        type: jsonpath
  - stepId: getStory
    description: >-
      Retrieve the full story body and metadata for the storyId captured from the
      first headline.
    operationId: getNewsStory
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: storyId
      in: path
      value: $steps.getHeadlines.outputs.storyId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      title: $response.body#/title
      body: $response.body#/body
      subjects: $response.body#/subjects
  outputs:
    storyId: $steps.getHeadlines.outputs.storyId
    title: $steps.getStory.outputs.title
    body: $steps.getStory.outputs.body