Fix Web Sockets. Form into library. Move demo to demo folder. Split demo between sse and websocket.

demo/sse.ts

@@ -0,0 +1,37 @@
+import { PrivateKey } from "@xo-cash/primitives";
+import { toExtendedJson } from "@xo-cash/utils";
+
+import { SSEClient } from '../src/sse/client.js';
+
+const testSSE = async () => {
+  const privateKey = PrivateKey.fromString('c440ce6ac5b63ae7bc4af9891b80b7a88ccdeebba5e43246885e9ec56f912ac2');
+  const client = new SSEClient('https://v2.sync.xo.harvmaster.com', privateKey, {
+    onMessage: (message) => {
+      console.log(toExtendedJson(message));
+    },
+    onError: (error) => {
+      console.error(error);
+    },
+  });
+
+  // Connect to the sync server
+  await client.connect();
+
+  // Subscribe to the resource
+  await client.subscribe('test');
+
+  // Write a new value to the resource
+  await client.write('test', {'message': 'Hello, world! this is the minimal sync client using SSE'});
+
+  // Read the current value of the resource
+  const data = await client.read('test');
+  console.log(data);
+
+  // If the user presses Ctrl+C, disconnect the client and exit the program
+  process.on('SIGINT', async () => {
+    await client.disconnect();
+    process.exit(0);
+  });
+}
+
+testSSE();