Polygon Crypto Pair Analysis

arazzo: 1.0.1
info:
  title: Polygon Crypto Pair Analysis
  summary: Snapshot a crypto pair, pull its aggregate bars, and read its Level-2 order book.
  description: >-
    A cross-exchange analysis flow for a single crypto pair (e.g. X:BTCUSD).
    The workflow reads the current snapshot to capture the last trade and
    day session, pulls aggregate bars over a date range for trend context,
    and then reads the current Level-2 order book to gauge depth and spread.
    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: cryptoApi
  url: ../openapi/polygon-crypto-openapi.yml
  type: openapi
workflows:
- workflowId: crypto-pair-analysis
  summary: Analyze a crypto pair via snapshot, aggregate bars, and the Level-2 book.
  description: >-
    Reads a crypto ticker snapshot, then chains its aggregate bars and the
    Level-2 order book for the same pair.
  inputs:
    type: object
    required:
    - ticker
    - multiplier
    - timespan
    - from
    - to
    properties:
      ticker:
        type: string
        description: Crypto ticker symbol (e.g. X:BTCUSD).
      multiplier:
        type: integer
        description: Size of the timespan multiplier for the aggregate window.
      timespan:
        type: string
        description: Aggregate window size (minute, hour, day, week, month, quarter, year).
      from:
        type: string
        description: Start of the aggregate window (YYYY-MM-DD).
      to:
        type: string
        description: End of the aggregate window (YYYY-MM-DD).
  steps:
  - stepId: getSnapshot
    description: >-
      Read the current snapshot for the crypto ticker to capture its last
      trade and day session.
    operationId: getCryptoSnapshotForTicker
    parameters:
    - name: ticker
      in: path
      value: $inputs.ticker
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      lastTrade: $response.body#/ticker/lastTrade
      day: $response.body#/ticker/day
  - stepId: getAggregates
    description: >-
      Retrieve aggregate bars for the crypto pair over the requested date
      range for trend context.
    operationId: getCryptoAggregateBars
    parameters:
    - name: cryptoTicker
      in: path
      value: $inputs.ticker
    - name: multiplier
      in: path
      value: $inputs.multiplier
    - name: timespan
      in: path
      value: $inputs.timespan
    - name: from
      in: path
      value: $inputs.from
    - name: to
      in: path
      value: $inputs.to
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      bars: $response.body#/results
      resultsCount: $response.body#/resultsCount
  - stepId: getOrderBook
    description: >-
      Read the current Level-2 order book for the crypto pair to gauge
      market depth and spread.
    operationId: getCryptoL2Book
    parameters:
    - name: ticker
      in: path
      value: $inputs.ticker
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      spread: $response.body#/data/spread
      bidCount: $response.body#/data/bidCount
      askCount: $response.body#/data/askCount
  outputs:
    lastTrade: $steps.getSnapshot.outputs.lastTrade
    bars: $steps.getAggregates.outputs.bars
    spread: $steps.getOrderBook.outputs.spread