多人游戏会话高级主题

https://{authority}/serviceconfigs/{service-config-id}/sessiontemplates/{session-template-name}/sessions/{session-name}

    "custom": {
      "myField1": true,
      "myField2": "string",
      "myField3": 5.5,
      "myField4": { "myObject": null },
      "myField5": [ "my", "array" ]
    }

    {
      // These flags control the member status and "activeTitle" and are mutually exclusive (it's an error to set both to true).
      // For each, false is the same as not present. The default status is "inactive"; that is, neither present.
      "ready": true,
      "active": false,

      // Base-64 blob, or not present. An empty string is the same as not present.
      "secureDeviceAddress": "ryY=",

      // During member initialization, if any members in the list fail, this member will also fail.
      // Can't be set on large sessions.
      "initializationGroup": [ 5 ],

      // List of the groups I'm in and the encounters I just had.
      // An encounter is a brief interaction with a group. When an encounter is reported, it counts as retroactively joining the group 30 seconds ago and just now leaving.
      // Group names use the session name validation rules (like case-insensitive).
      // On large sessions, groups are used to report who played with whom (rather than just session membership). Members
      // who are active in at least one group together at the same time are counted as playing together.
      // Empty lists are the same as no value specified.
      // The set of encounters is a point-in-time property, so it's immediately consumed and will never appear on a response.
      "groups": [ "team-buzz", "posse.99" ],
      "encounters": [ "CoffeeShop-757093D8-E41F-49D0-BB13-17A49B20C6B9" ],

      // Optional list of role preferences that the player has specified for role-based game modes.
      // All role names have to match across all members in the session. Role weights are
      // defined from 0-100.
      "RolePreference": { "medic": 75, "sniper": 25, "assault": 50, "support": 100 },

      // Quality of Service (QoS) measurements by lowercase device token.
      // Like all fields, "measurements" must be updated as a whole. It should be set once when measurement is complete, not incrementally.
      // Metrics can be omitted if they weren't successfully measured; that is, the peer is unreachable.
      // If a "measurements" object is set, it can't contain an entry for the member's own address.
      "measurements": {
        "e69c43a8": {
          "bandwidthDown": 19342,  // Kilobits per second.
          "bandwidthUp": 944,  // Kilobits per second.
          "custom": { }
        }

      // QoS measurements by game-server connection string. Like all fields, "serverMeasurements" must be updated as a whole, so it should be set once when measurement is complete.
      // If empty, it means that none of the measurements were completed within the "serverMeasurementTimeout".
      "serverMeasurements": {
        "server farm a": {
          "latency": 233  // Milliseconds.
        }
      },

      // Subscriptions for shoulder taps on session changes. The "profile" indicates which session changes to tap and other properties of the registration like the minimum time between taps.
      // The subscription is named with a title-generated GUID that's also sent back with the tap as a context ID.
      // Subscriptions can be added and removed individually, without affecting other subscriptions in the "subscriptions" object.
      // To remove a subscription, set its context ID to null.
      // (Like the "ready" and "active" flags, the "subscriptions" data is copied out and maintained internally, so the normal replace-all rule on system fields doesn't apply to "subscriptions".)
      // Can't be set on large sessions.
      "subscriptions": {
        "961dc162-3a8c-4982-b58b-0347ed086bc9": {
          "profile": "party",  // Or "matchmaking", "initialization", "roster", "queuehost", or "queue".
          "onBehalfOfTitleId": "3948320593",  // Optional decimal title ID of the registered channel. If not set, the title ID is taken from the token.
        },
        "709fef70-4638-4b94-905b-24cb02706eb5": null
      }
    }