openapi: 3.0.3
info:
  title: AccelByte Gaming Services (AGS) Achievement Leaderboard API
  description: Representative OpenAPI description of the core AccelByte Gaming Services (AGS) REST surface. AGS is delivered as a set of independent microservices (IAM, Basic, Cloud Save, Statistics/Leaderboard, Matchmaking, Session, Platform/Commerce, Season Pass, Achievement, DSMC/Armada, Game Telemetry, and UGC), each mounted under its own path prefix on the environment base URL (for example https://demo.accelbyte.io). Almost every operation is scoped to a `namespace` path parameter and secured with an OAuth2 Bearer access token issued by IAM. This document models a representative slice of each service rather than the exhaustive per-service specs, which AccelByte publishes individually.
  termsOfService: https://accelbyte.io/terms-of-service
  contact:
    name: AccelByte
    url: https://accelbyte.io/contact-us
  version: '1.0'
servers:
- url: https://demo.accelbyte.io
  description: Shared AccelByte demo environment
- url: https://{namespace}.accelbyte.io
  description: Customer environment base URL
  variables:
    namespace:
      default: demo
      description: Customer environment host prefix
security:
- bearerAuth: []
tags:
- name: Leaderboard
  description: Ranked leaderboards derived from statistics.
paths:
  /leaderboard/v1/public/namespaces/{namespace}/leaderboards/{leaderboardCode}/all:
    get:
      operationId: leaderboardGetAllTimeRanking
      tags:
      - Leaderboard
      summary: Get all-time leaderboard rankings.
      parameters:
      - $ref: '#/components/parameters/Namespace'
      - name: leaderboardCode
        in: path
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/Limit'
      - $ref: '#/components/parameters/Offset'
      responses:
        '200':
          description: Ranked entries.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LeaderboardRankingResult'
components:
  parameters:
    Limit:
      name: limit
      in: query
      required: false
      schema:
        type: integer
        default: 20
    Offset:
      name: offset
      in: query
      required: false
      schema:
        type: integer
        default: 0
    Namespace:
      name: namespace
      in: path
      required: true
      description: The game namespace the request is scoped to.
      schema:
        type: string
      example: demogame
  schemas:
    RankingEntry:
      type: object
      properties:
        userId:
          type: string
        rank:
          type: integer
        point:
          type: number
    LeaderboardRankingResult:
      type: object
      properties:
        leaderboardCode:
          type: string
        data:
          type: array
          items:
            $ref: '#/components/schemas/RankingEntry'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth2 access token issued by the IAM token endpoint.
    basicAuth:
      type: http
      scheme: basic
      description: OAuth2 client id / client secret used at the token endpoint.