{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/jupyterhub/main/json-schema/jupyterhub-server.json",
  "title": "JupyterHub Server",
  "description": "Schema for a JupyterHub single-user server resource.",
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "description": "Server name (empty string for the default server)."
    },
    "ready": {
      "type": "boolean",
      "description": "Whether the server is ready to handle requests."
    },
    "stopped": {
      "type": "boolean",
      "description": "Whether the server is stopped."
    },
    "pending": {
      "type": ["string", "null"],
      "enum": ["spawn", "stop", null],
      "description": "Pending action on this server."
    },
    "url": {
      "type": "string",
      "description": "URL where the server is reachable."
    },
    "progress_url": {
      "type": "string",
      "description": "URL for the server's spawn progress events."
    },
    "started": {
      "type": ["string", "null"],
      "format": "date-time",
      "description": "When the server was started."
    },
    "last_activity": {
      "type": ["string", "null"],
      "format": "date-time",
      "description": "Last activity timestamp on the server."
    },
    "state": {
      "type": "object",
      "description": "Spawner-specific state."
    },
    "user_options": {
      "type": "object",
      "description": "Spawner user options used to start the server."
    }
  }
}