Unity Matchmaking to Server Allocation

arazzo: 1.0.1
info:
  title: Unity Matchmaking to Server Allocation
  summary: Create a matchmaking ticket, poll until matched, then allocate a Multiplay game server for the session.
  description: >-
    A cross-service flow that bridges Unity Matchmaker and Unity Multiplay
    Hosting. The workflow creates a matchmaking ticket and polls it until a
    match is Found, then allocates a dedicated game server from a Multiplay
    fleet so the matched players have somewhere to connect. Because the
    matchmaker and multiplay descriptions each define their own operations, the
    sourceDescriptions form is used to disambiguate. Every step spells out its
    request inline so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: matchmakerApi
  url: ../openapi/unity-matchmaker-openapi.yml
  type: openapi
- name: multiplayApi
  url: ../openapi/unity-multiplay-openapi.yml
  type: openapi
workflows:
- workflowId: matchmaking-allocate-server
  summary: Match players then allocate a Multiplay server for the session.
  description: >-
    Creates a matchmaking ticket, polls until a match is found, then allocates
    a game server from a Multiplay fleet for the matched session.
  inputs:
    type: object
    required:
    - accessToken
    - projectId
    - environmentId
    - queueName
    - playerId
    - regionId
    - fleetId
    properties:
      accessToken:
        type: string
        description: Bearer JWT for the service account.
      projectId:
        type: string
        description: The Unity project identifier.
      environmentId:
        type: string
        description: The Unity environment identifier (matchmaker).
      queueName:
        type: string
        description: The matchmaking queue to enter.
      playerId:
        type: string
        description: The player id to include in the ticket.
      regionId:
        type: string
        description: The Multiplay region to allocate a server in.
      fleetId:
        type: string
        description: The Multiplay fleet to allocate a server from.
  steps:
  - stepId: createTicket
    description: >-
      Create a matchmaking ticket placing the player into the named queue.
    operationId: $sourceDescriptions.matchmakerApi.createTicket
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: projectId
      in: path
      value: $inputs.projectId
    - name: environmentId
      in: path
      value: $inputs.environmentId
    requestBody:
      contentType: application/json
      payload:
        queueName: $inputs.queueName
        players:
        - id: $inputs.playerId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      ticketId: $response.body#/id
  - stepId: pollTicket
    description: >-
      Poll the ticket status, retrying while InProgress and continuing once a
      match is Found.
    operationId: $sourceDescriptions.matchmakerApi.getTicket
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: projectId
      in: path
      value: $inputs.projectId
    - name: environmentId
      in: path
      value: $inputs.environmentId
    - name: ticketId
      in: path
      value: $steps.createTicket.outputs.ticketId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
    onSuccess:
    - name: retryWhileInProgress
      type: retry
      retryAfter: 5
      retryLimit: 30
      criteria:
      - context: $response.body
        condition: $.status == "InProgress"
        type: jsonpath
    - name: matchFound
      type: goto
      stepId: allocateServer
      criteria:
      - context: $response.body
        condition: $.status == "Found"
        type: jsonpath
  - stepId: allocateServer
    description: >-
      Allocate an available game server from the Multiplay fleet for the matched
      session.
    operationId: $sourceDescriptions.multiplayApi.allocateServer
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: projectId
      in: path
      value: $inputs.projectId
    - name: regionId
      in: path
      value: $inputs.regionId
    - name: fleetId
      in: path
      value: $inputs.fleetId
    requestBody:
      contentType: application/json
      payload:
        allocationContext: $steps.createTicket.outputs.ticketId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      allocationID: $response.body#/allocationID
      ip: $response.body#/ip
      port: $response.body#/port
  outputs:
    ticketId: $steps.createTicket.outputs.ticketId
    allocationID: $steps.allocateServer.outputs.allocationID
    serverIp: $steps.allocateServer.outputs.ip
    serverPort: $steps.allocateServer.outputs.port