xy-websocket

Simple protocol for awaitable RPC calls and events over WebSocket connections. Current stable version is 1.14.1, with regular updates. Key differentiators: built-in RPC with automatic promise resolution, event broadcasting to all/single clients, and error handling that passes exceptions across the wire. Supports both server and client usage with a straightforward API. Compared to raw WebSocket or socket.io, it provides a higher-level abstraction for request-response patterns without heavy framework dependencies.