WISK Sales API

openapi: 3.2.0
info:
  title: WISK Public Upload Sales API
  version: '1.0'
  description: 'WISK''s public sales-upload API lets POS providers and integration partners push sales line items into a customer''s WISK account so that sales can be reconciled against inventory. A partner submits an array of sales lines via a single POST operation. WISK provisions each partner with a venue unique identifier that is supplied in the request header to route the data to the correct venue/account.


    This specification was generated from WISK''s public documentation. The request path, JSON body structure, and field definitions are taken verbatim from the public "Public Sales upload" guide; the exact request header name is provisioned per-partner by WISK and is therefore modeled generically.'
  contact:
    name: WISK Integrations Team
    url: https://help.wisk.ai/en/articles/5071983-integrating-with-wisk-for-pos-providers
  x-generated-from: documentation
  x-source-url: https://wiskai.notion.site/Public-Sales-upload-9d06c365cdea42069598a526dd657086
  x-last-validated: '2026-06-03'
servers:
- url: https://api.wisk.ai
  description: WISK production API
tags:
- name: Sales
  description: Push point-of-sale sales line items into a WISK venue account.
paths:
  /public/sales/upload:
    post:
      operationId: uploadSales
      summary: Upload Sales Lines
      description: Push an array of point-of-sale sales line items into a WISK venue account. Each element of the array represents a single sales line from a receipt; a receipt that contains multiple distinct items produces one array element per item. The destination venue is identified by the venue unique identifier header that WISK provisions for the partner.
      tags:
      - Sales
      security:
      - venueIdHeader: []
      requestBody:
        required: true
        description: An array of sales line items to record against the venue.
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SalesUpload'
            examples:
              UploadSalesRequestExample:
                summary: Default uploadSales request
                x-microcks-default: true
                value:
                - id: '1'
                  date: '2019-01-04T02:37:30Z'
                  plu_number: '1'
                  title: Negroni
                  quantity: 2
                  total: 60
                - id: '2'
                  date: '2019-01-04T02:38:30Z'
                  plu_number: '2'
                  title: Mojito
                  quantity: 4
                  total: 40
                - id: '3'
                  date: '2019-01-04T02:39:30Z'
                  plu_number: '4'
                  title: Martini
                  quantity: 1
                  total: 10
                - id: '4'
                  date: '2019-01-04T02:40:30Z'
                  plu_number: '4'
                  title: Martini
                  quantity: -1
                  total: -10
      responses:
        '200':
          description: Sales lines accepted for processing.
        '400':
          description: The request body was malformed or failed validation.
        '401':
          description: The venue unique identifier was missing or invalid.
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    SalesLine:
      title: Sales Line
      type: object
      description: A single point-of-sale sales line from a receipt.
      x-schema-source: documentation
      x-source-url: https://wiskai.notion.site/Public-Sales-upload-9d06c365cdea42069598a526dd657086
      required:
      - id
      - date
      - plu_number
      - title
      - quantity
      - total
      properties:
        id:
          type: string
          description: The unique identifier of the receipt sales line. If a client buys two different cocktails on one receipt, each cocktail is a separate line with a different id.
          example: '1'
        date:
          type: string
          format: date-time
          description: The receipt date, in ISO 8601 format.
          example: '2019-01-04T02:37:30Z'
        plu_number:
          type: string
          description: The unique POS identifier (price look-up number) of the POS item sold.
          example: '1'
        title:
          type: string
          description: The name of the POS item sold.
          example: Negroni
        quantity:
          type: number
          format: double
          description: How many of the item were sold. May be negative to represent a void or refund line.
          example: 2
        total:
          type: number
          format: double
          description: The total for the line in the venue's local currency.
          example: 60
    SalesUpload:
      title: Sales Upload
      type: array
      description: The POST body is a JSON array of sales line items.
      items:
        $ref: '#/components/schemas/SalesLine'
  securitySchemes:
    venueIdHeader:
      type: apiKey
      in: header
      name: X-Wisk-Venue-Id
      description: Venue unique identifier provisioned by WISK for the partner. The public guide instructs partners to "ask WISK to give the venue unique identifier" and supply it in the request header. The exact header name is assigned by WISK per integration; X-Wisk-Venue-Id is used here as a representative placeholder.