openapi: 3.1.0
info:
  title: Rakuten Web Services Ichibagt Ichibaranking API
  description: 'Public Rakuten Web Services (RWS) REST/JSON APIs for searching the Rakuten

    Ichiba marketplace (item search, genre search, item ranking). All endpoints

    require a Rakuten application ID and access key.

    '
  version: '20260401'
  contact:
    name: Rakuten Web Services
    url: https://webservice.rakuten.co.jp/
servers:
- url: https://app.rakuten.co.jp
  description: Public Rakuten Web Services base host
- url: https://openapi.rakuten.co.jp
  description: Rakuten OpenAPI host (used by current RWS endpoints)
security:
- applicationId: []
  accessKey: []
tags:
- name: Ichibaranking
paths:
  /ichibaranking/api/IchibaItem/Ranking/20220601:
    get:
      summary: Get Ichiba item ranking
      description: Returns top-ranked Ichiba items by genre, age, gender, carrier.
      operationId: getIchibaItemRanking
      servers:
      - url: https://openapi.rakuten.co.jp
      parameters:
      - $ref: '#/components/parameters/applicationId'
      - $ref: '#/components/parameters/accessKey'
      - name: genreId
        in: query
        schema:
          type: integer
          format: int64
      - name: age
        in: query
        schema:
          type: integer
          enum:
          - 10
          - 20
          - 30
          - 40
          - 50
      - name: sex
        in: query
        description: 0=Male, 1=Female.
        schema:
          type: integer
          enum:
          - 0
          - 1
      - name: page
        in: query
        schema:
          type: integer
          minimum: 1
          maximum: 34
      - name: carrier
        in: query
        description: 0=PC, 1=Mobile.
        schema:
          type: integer
          enum:
          - 0
          - 1
      - name: format
        in: query
        schema:
          type: string
          enum:
          - json
          - xml
          default: json
      - name: callback
        in: query
        schema:
          type: string
      responses:
        '200':
          description: Ranking response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/IchibaItemRankingResponse'
      tags:
      - Ichibaranking
components:
  schemas:
    RankedItem:
      type: object
      properties:
        rank:
          type: integer
        itemName:
          type: string
        itemPrice:
          type: integer
        itemUrl:
          type: string
        affiliateUrl:
          type: string
        mediumImageUrls:
          type: array
          items:
            type: string
        shopName:
          type: string
        shopCode:
          type: string
        shopUrl:
          type: string
        reviewCount:
          type: integer
        reviewAverage:
          type: number
        availability:
          type: integer
        taxFlag:
          type: integer
        postageFlag:
          type: integer
        creditCardFlag:
          type: integer
    IchibaItemRankingResponse:
      type: object
      properties:
        title:
          type: string
        lastBuildDate:
          type: string
        Items:
          type: array
          items:
            $ref: '#/components/schemas/RankedItem'
  parameters:
    accessKey:
      name: accessKey
      in: query
      required: true
      description: Rakuten access key (may be sent as a header instead).
      schema:
        type: string
    applicationId:
      name: applicationId
      in: query
      required: true
      description: Rakuten application ID.
      schema:
        type: string
  securitySchemes:
    applicationId:
      type: apiKey
      in: query
      name: applicationId
      description: Rakuten application ID (issued from the RWS developer console).
    accessKey:
      type: apiKey
      in: query
      name: accessKey
      description: Rakuten RWS access key. May also be supplied as an HTTP header.