{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/embeddable/refs/heads/main/json-schema/embeddable-widget-instance-schema.json",
  "title": "WidgetInstance",
  "description": "A running instance of an embedded widget on a host page, including its host context, lifecycle state, and the signed token used to authorize it.",
  "type": "object",
  "properties": {
    "instance_id": {
      "type": "string",
      "description": "Unique identifier for the rendered widget instance.",
      "example": "wi_01HXYZ7N8K2QF8E4G5R3SA9PQ2"
    },
    "provider": {
      "type": "string",
      "description": "Vendor providing the widget.",
      "example": "Plaid"
    },
    "widget_type": {
      "type": "string",
      "description": "Category of embedded experience.",
      "enum": [
        "payment",
        "identity",
        "financial-link",
        "map",
        "media-player",
        "chat",
        "scheduling",
        "form",
        "analytics-dashboard",
        "video-conference",
        "auth",
        "comments",
        "other"
      ],
      "example": "financial-link"
    },
    "host": {
      "type": "object",
      "description": "Information about the host page that mounted the widget.",
      "properties": {
        "origin": { "type": "string", "format": "uri", "example": "https://app.example.com" },
        "page_url": { "type": "string", "format": "uri", "example": "https://app.example.com/onboarding/bank" },
        "user_agent": { "type": "string", "example": "Mozilla/5.0 ... Chrome/123.0" }
      }
    },
    "embed_mode": {
      "type": "string",
      "description": "How the widget is currently mounted.",
      "enum": ["inline", "iframe", "popup", "drawer", "modal", "side-tab", "full-page", "script-tag", "web-component"],
      "example": "popup"
    },
    "session_token": {
      "type": "string",
      "description": "Short-lived token authorizing this widget instance.",
      "example": "link-sandbox-abc123-9d4e-4f9a-9c4d-1234567890ab"
    },
    "status": {
      "type": "string",
      "description": "Lifecycle state of the widget instance.",
      "enum": ["initializing", "ready", "in-progress", "succeeded", "failed", "dismissed", "expired"],
      "example": "ready"
    },
    "user_ref": {
      "type": "string",
      "description": "Opaque reference to the end user in the host system.",
      "example": "user_8f2c1c7e"
    },
    "created_at": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp the widget instance was created on the host page.",
      "example": "2026-05-19T15:42:11Z"
    },
    "expires_at": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp the underlying session token expires.",
      "example": "2026-05-19T16:42:11Z"
    },
    "last_event": {
      "type": "object",
      "description": "Most recent lifecycle or domain event emitted by the widget.",
      "properties": {
        "name": { "type": "string", "example": "success" },
        "timestamp": { "type": "string", "format": "date-time", "example": "2026-05-19T15:43:02Z" },
        "payload": { "type": "object" }
      }
    }
  },
  "required": ["instance_id", "provider", "widget_type", "embed_mode", "status"]
}