openapi: 3.0.1
info:
  title: Quix Cloud HTTP APIs Definitions Event Data API
  description: 'OpenAPI 3.0 description of the HTTP (REST) surfaces of Quix Cloud: the Streaming Writer API for publishing time-series parameter data, events, and definitions into Quix topics, and the account-wide Portal API for managing workspaces, topics, and deployments.


    The Streaming Reader API is delivered exclusively over a Microsoft SignalR hub (WebSockets / Long Polling) and is therefore modeled separately in the companion AsyncAPI document at asyncapi/quix-asyncapi.yml, not here.


    All endpoints authenticate with a Quix Personal Access Token (PAT) supplied as an `Authorization: Bearer <PAT>` header. The Streaming Writer API base host is environment-specific (`writer-{environmentId}.cloud.quix.io`); the Portal API is account-wide (`portal-api.platform.quix.io`). Endpoint paths are documented by Quix; per-environment Swagger/OpenAPI references are available from the Quix portal under Settings > APIs and tokens.'
  termsOfService: https://quix.io/terms/
  contact:
    name: Quix Support
    url: https://quix.io/contact/
  license:
    name: API documentation - Quix Terms
    url: https://quix.io/terms/
  version: '1.0'
servers:
- url: https://writer-{environmentId}.cloud.quix.io
  description: Streaming Writer API. Environment-specific host; `{environmentId}` is the URL-friendly combination of organization, project, and environment names (e.g. `myorg-myproject-production`).
  variables:
    environmentId:
      default: myorg-myproject-production
      description: Quix environment (workspace) identifier.
- url: https://portal-api.platform.quix.io
  description: Portal API. Account-wide management host. The subdomain segment may differ per Quix deployment; copy the exact Portal API base from the Quix portal (Settings > APIs and tokens).
tags:
- name: Event Data
  description: Publish discrete events into a stream (Streaming Writer API).
paths:
  /topics/{topicName}/streams/{streamId}/events/data:
    post:
      operationId: sendEventData
      tags:
      - Event Data
      summary: Send event data
      description: Publishes one or more discrete events to a stream. Each event carries a nanosecond `timestamp`, an `id`, an optional `value`, and optional `tags`.
      servers:
      - url: https://writer-{environmentId}.cloud.quix.io
        variables:
          environmentId:
            default: myorg-myproject-production
      parameters:
      - $ref: '#/components/parameters/TopicName'
      - $ref: '#/components/parameters/StreamId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EventDataRequest'
      responses:
        '200':
          description: Events accepted.
        '401':
          $ref: '#/components/responses/Unauthorized'
      security:
      - bearerAuth: []
components:
  responses:
    Unauthorized:
      description: Authentication failed - the bearer token is missing, malformed, or expired.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  parameters:
    TopicName:
      name: topicName
      in: path
      required: true
      description: The name of the topic the stream belongs to.
      schema:
        type: string
    StreamId:
      name: streamId
      in: path
      required: true
      description: The unique identifier of the stream. Publishing to an id that does not exist creates the stream implicitly.
      schema:
        type: string
  schemas:
    Error:
      type: object
      properties:
        status:
          type: integer
        title:
          type: string
        detail:
          type: string
    EventDataRequest:
      type: array
      description: An array of discrete events to publish.
      items:
        type: object
        required:
        - id
        - timestamp
        properties:
          id:
            type: string
            description: The event definition id.
          timestamp:
            type: integer
            format: int64
            description: Nanosecond epoch timestamp of the event.
          value:
            type: string
            description: Optional event payload value.
          tags:
            type: object
            additionalProperties:
              type: string
            description: Optional tags for the event.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: PAT
      description: 'Quix Personal Access Token (PAT) presented as `Authorization: Bearer <PAT>`. Generate from the Quix portal under your profile > Personal Access Tokens, or Settings > APIs and tokens.'