Client Development

This section documents the OST WebSocket API for developers who want to build a client — web, mobile, desktop, or any other platform that can open a WebSocket connection.

The server listens on port 9624 (plain WebSocket) or via a reverse proxy with WSS. All messages are JSON text frames.

• Data Model

  Hierarchy of modules, properties, and elements exchanged over WebSocket

• Server → Client Messages

  All JSON messages sent by the OST server to connected clients

• Client → Server Messages

  All JSON messages that clients can send to the OST server

• Example Session

  Annotated WebSocket exchange showing a complete client session