Tindie orderitem API

openapi: 3.0.3
info:
  title: Tindie order orderitem API
  version: v1
  description: 'Tindie''s public v1 REST API (Django Tastypie). It exposes three resources: `product` (public catalog listings for a store), and `order` and `orderitem` (a seller''s own orders, authenticated). Responses are JSON using the standard Tastypie envelope (`meta` pagination + `objects` array). The `product` resource schema is public; `order` and `orderitem` require API-key authentication and return 401 without credentials.'
  contact:
    name: Tindie Support
    url: https://www.tindie.com/help/
servers:
- url: https://www.tindie.com/api/v1
  description: Production
security: []
tags:
- name: orderitem
  description: Line items within a seller's orders (authenticated).
paths:
  /orderitem/:
    get:
      tags:
      - orderitem
      operationId: listOrderItems
      summary: List order items
      description: List line items across the authenticated seller's orders. Requires API-key authentication. Returns 401 without valid credentials.
      security:
      - apiKeyQuery: []
        usernameQuery: []
      parameters:
      - $ref: '#/components/parameters/limit'
      - $ref: '#/components/parameters/offset'
      - $ref: '#/components/parameters/format'
      responses:
        '200':
          description: A paginated list of order items (Tastypie envelope).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListEnvelope'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    ListMeta:
      type: object
      description: Tastypie pagination metadata.
      properties:
        limit:
          type: integer
          example: 20
        offset:
          type: integer
          example: 0
        total_count:
          type: integer
        next:
          type: string
          nullable: true
        previous:
          type: string
          nullable: true
    TastypieError:
      type: object
      description: Tastypie error envelope.
      properties:
        error_message:
          type: string
        traceback:
          type: string
    ListEnvelope:
      type: object
      description: Standard Tastypie list envelope. `objects` field schema for order / orderitem is only exposed to authenticated callers.
      properties:
        meta:
          $ref: '#/components/schemas/ListMeta'
        objects:
          type: array
          items:
            type: object
  parameters:
    format:
      name: format
      in: query
      description: Response serialization format (e.g. `json`).
      required: false
      schema:
        type: string
        default: json
    limit:
      name: limit
      in: query
      description: Page size (Tastypie; default 20). Use 0 for all.
      required: false
      schema:
        type: integer
        default: 20
    offset:
      name: offset
      in: query
      description: Result offset for pagination.
      required: false
      schema:
        type: integer
        default: 0
  responses:
    Unauthorized:
      description: Missing or invalid API-key credentials.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/TastypieError'
  securitySchemes:
    apiKeyQuery:
      type: apiKey
      in: query
      name: api_key
      description: 'Tindie API key (Tastypie ApiKeyAuthentication). Passed as the `api_key` query parameter alongside `username`, or as the header `Authorization: ApiKey <username>:<api_key>`.'
    usernameQuery:
      type: apiKey
      in: query
      name: username
      description: The Tindie account username that owns the API key.