heartbeat

src/server/api/events.ts

@@ -8,7 +8,11 @@ const router = Hype.router()
 // individual events so apps can react to specific lifecycle changes.
 router.sse('/stream', (send) => {
   const unsub = onEvent(event => send(event))
-  return unsub
+  const heartbeat = setInterval(() => send('', 'ping'), 60_000)
+  return () => {
+    clearInterval(heartbeat)
+    unsub()
+  }
 })
 
 export default router

src/tools/events.ts

@@ -35,8 +35,10 @@ function ensureConnection() {
         buf = lines.pop()!
         for (const line of lines) {
           if (!line.startsWith('data: ')) continue
+          const payload = line.slice(6)
+          if (!payload) continue
           try {
-            const event: ToesEvent = JSON.parse(line.slice(6))
+            const event: ToesEvent = JSON.parse(payload)
             _listeners.forEach(l => {
               if (l.types.includes(event.type)) l.callback(event)
             })