diff --git a/auxilary.ts b/subscriptionMap.ts
similarity index 100%
rename from auxilary.ts
rename to subscriptionMap.ts
diff --git a/utility.ts b/utility.ts
new file mode 100644
index 0000000..ffaef1c
--- /dev/null
+++ b/utility.ts
@@ -0,0 +1,4 @@
+export function guardStringNotEmpty(data: any, cb: (data: string) => void): void {
+  if (typeof data != "string" || data != "") return;
+  cb(data);
+}
diff --git a/websocket-handler.ts b/websocket-handler.ts
index 5408cb7..61037ad 100644
--- a/websocket-handler.ts
+++ b/websocket-handler.ts
@@ -1,7 +1,8 @@
 // TYPES
 
-import { SubscriptionMap } from "./auxilary";
+import { SubscriptionMap } from "./subscriptionMap";
 import { WS } from "./index";
+import { guardStringNotEmpty } from "./utility";
 
 // requests
 export interface IncomingMessage {
@@ -38,16 +39,16 @@ export function forgetConnection(ws: WS): void {
 export function processMessage(ws: WS, messageString: string): void {
   const messageObject: IncomingMessage = parseMessage(messageString);
 
-  if (typeof messageObject.subscribeChannel == "string") {
-    trackSubscription(ws, messageObject.subscribeChannel);
-  } else if (typeof messageObject.unsubscribeChannel == "string") {
-    removeSubscription(ws, messageObject.unsubscribeChannel);
-  } else if (
-    typeof messageObject.messageChannel == "string" &&
-    typeof messageObject.messageBody == "string"
-  ) {
-    sendMessage(messageObject.messageChannel, messageObject.messageBody);
-  }
+  guardStringNotEmpty(messageObject.subscribeChannel, (subscribeChannel) => {
+    trackSubscription(ws, subscribeChannel);
+  });
+  guardStringNotEmpty(messageObject.unsubscribeChannel, (unsubscribeChannel) => {
+    removeSubscription(ws, unsubscribeChannel);
+  });
+  guardStringNotEmpty(messageObject.messageChannel == "string", (messageChannel) => {
+    if (!messageObject.messageBody) return;
+    sendMessage(messageChannel, messageObject.messageBody);
+  });
 }
 
 // MESSAGING
@@ -73,5 +74,6 @@ function confirmSubscription(ws: WS, channel: string): void {
     subscribed: subscriptions.getChannelList(ws)?.has(channel),
   };
   const messageString = stringifyMessage(messageObject);
+  console.log(messageString);
   ws.send(messageString);
 }