fix(runtime): event register functions return unregister function

Author: ddadaal

.changeset/clever-cows-occur.md

@@ -0,0 +1,5 @@
+---
+"@ddadaal/next-typed-api-routes-runtime": patch
+---
+
+event register functions return unregister function

example/src/pages/index.tsx

@@ -103,8 +103,8 @@ export const FailEventTestDiv = () => {
     const handler = (e: HttpError) => {
       setErrors((errors) => [...errors, e]);
     };
-    failEvent.register(handler);
-    return () => failEvent.unregister(handler);
+    const unregister = failEvent.register(handler);
+    return unregister;
   }, []);
 
 

packages/runtime/src/fetch/events.ts

@@ -6,6 +6,8 @@ class Event<TArgs> {
 
   register = (handler: (args: TArgs) => void) => {
     this.handlers.push(handler);
+
+    return () => this.unregister(handler);
   };
 
   execute = (args: TArgs) => {