Switch back to yarn, add in prettier linting

README.md

@@ -1,2 +1,3 @@
 # collab-server
+
 Excalidraw collaboration server

package.json

@@ -5,9 +5,12 @@
   "main": "index.js",
   "scripts": {
     "build": "tsc",
+    "fix": "yarn prettier --write",
+    "lint": "yarn prettier --list-different",
     "postinstall": "npm run build",
+    "prettier": "prettier \"**/*.{ts,md,json,yaml,yml}\"",
     "start": "node dist/index.js",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "yarn lint"
   },
   "repository": {
     "type": "git",

src/index.ts

@@ -40,10 +40,13 @@ io.on("connection", socket => {
     );
   });
 
-  socket.on("server-broadcast", (roomID: string, encryptedData: ArrayBuffer, iv: Uint8Array) => {
+  socket.on(
+    "server-broadcast",
+    (roomID: string, encryptedData: ArrayBuffer, iv: Uint8Array) => {
       console.log(`${socket.id} sends update to ${roomID}`);
       socket.broadcast.to(roomID).emit("client-broadcast", encryptedData, iv);
-  });
+    }
+  );
 
   socket.on("disconnecting", () => {
     const rooms = io.sockets.adapter.rooms;