import { MessageConnection, NotificationType } from 'vscode-jsonrpc';
import { listen } from 'vscode-ws-jsonrpc';

const webSocket = new WebSocket('ws://www.example.com/socketserver');
listen({
  webSocket,
  onConnection: (connection: MessageConnection) => {
    const notification = new rpc.NotificationType<string, void>('testNotification');
    connection.listen();
    connection.sendNotification(notification, 'Hello World');
  }
});

import { createWebSocketConnection, ConsoleLogger, IWebSocket } from 'vscode-ws-jsonrpc';
import { NotificationType } from 'vscode-languageserver';

const socket: IWebSocket; // open the web socket
const logger = new ConsoleLogger();
const connection = createWebSocketConnection(socket, logger);
const notification = new NotificationType<string, void>('testNotification');
connection.onNotification(notification, (param: string) => {
  console.log(param); // This prints Hello World
});

connection.listen();

import { IWebSocket, WebSocketMessageReader, WebSocketMessageWriter } from 'vscode-ws-jsonrpc';
import { createConnection, createServerProcess, forward } from 'vscode-ws-jsonrpc/server';
import { Message } from 'vscode-languageserver';

const socket: IWebSocket; // open the web socket
const reader = new WebSocketMessageReader(socket);
const writer = new WebSocketMessageWriter(socket);
const socketConnection = createConnection(reader, writer, () => socket.dispose());
const serverConnection = createServerProcess('Example', 'node', ['example.js']);
forward(socketConnection, serverConnection, (message) => {
  if (Message.isNotification(message)) {
    if (message.method === 'testNotification') {
      // handle the test notification
    }
  }
  return message;
});