add socket code

src/background/session.ts

@@ -0,0 +1,42 @@
+import WebSocket from 'ws';
+import { windowEmitter } from './windowEmitter';
+
+const ip = 'ws://localhost';
+const port = 8080;
+const username = 'hernandeze2@xavier.edu';
+
+const receiveMessage = (message: string): void => {
+  // NOTE assuming message is JSON string
+  const parsed = JSON.parse(message);
+  windowEmitter.emit('ipc-renderer', {
+      endpoint: 'render-message',
+      message: parsed
+  });
+}
+
+let socket: WebSocket;
+
+export function initSession() {
+
+    try {
+        socket = new WebSocket(`${ip}:${port}`);
+        socket.binaryType = 'arraybuffer';
+
+        socket.on('open', () => {
+            socket.send(username);
+        })
+
+        socket.on("message", receiveMessage);
+
+    } catch(e) {
+        console.log('error connecting socket', + e);
+    }
+}
+
+export const sendMessage = (content: string | Buffer) => {
+    if (content instanceof Buffer) {
+        socket.send(content);
+    } else {
+        socket.send(JSON.stringify(content));
+    }
+}