ThingSpeak Bulk Update and Read Field Feed

arazzo: 1.0.1
info:
  title: ThingSpeak Bulk Update and Read Field Feed
  summary: Upload a batch of cached readings, then read a single field's recent feed.
  description: >-
    The flow an offline-caching device uses to flush buffered readings. It uploads
    a batch of messages to the channel in one bulk request, then reads back the
    recent history of one field to confirm the batch was ingested. The bulk
    endpoint returns 202 Accepted because entries are queued for ingestion. 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: channelsApi
  url: ../openapi/thingspeak-channels-api-openapi.yml
  type: openapi
workflows:
- workflowId: bulk-update-and-read-field-feed
  summary: Upload a batch of readings and read one field's recent feed back.
  description: >-
    Posts a bulk update of cached entries, then reads the recent history for a
    single field to verify ingestion.
  inputs:
    type: object
    required:
    - channelId
    - writeApiKey
    - updates
    - fieldId
    properties:
      channelId:
        type: integer
        description: Numeric id of the channel to bulk-write and then read.
      writeApiKey:
        type: string
        description: Channel Write API Key used inside the bulk update payload.
      readApiKey:
        type: string
        description: Optional Channel Read API Key for reading the field feed.
      updates:
        type: array
        description: Array of update objects, each with field values and optional created_at.
        items:
          type: object
      fieldId:
        type: integer
        description: Field number (1-8) whose feed to read back.
      results:
        type: integer
        description: Number of field entries to retrieve.
  steps:
  - stepId: bulkUpdate
    description: >-
      Upload the buffered readings to the channel in a single bulk request.
    operationId: bulkUpdateChannel
    parameters:
    - name: channel_id
      in: path
      value: $inputs.channelId
    requestBody:
      contentType: application/json
      payload:
        write_api_key: $inputs.writeApiKey
        updates: $inputs.updates
    successCriteria:
    - condition: $statusCode == 202
    outputs:
      statusCode: $statusCode
  - stepId: readFieldFeed
    description: >-
      Read the recent history of a single field to confirm the batch landed.
    operationId: readFieldFeed
    parameters:
    - name: channel_id
      in: path
      value: $inputs.channelId
    - name: field_id
      in: path
      value: $inputs.fieldId
    - name: api_key
      in: query
      value: $inputs.readApiKey
    - name: results
      in: query
      value: $inputs.results
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      channel: $response.body#/channel
      feeds: $response.body#/feeds
  outputs:
    bulkStatusCode: $steps.bulkUpdate.outputs.statusCode
    feeds: $steps.readFieldFeed.outputs.feeds