const emitter = new EventEmitter();app.use("/sse/*", async (c, next) => { c.header("Content-Type", "text/event-stream"); c.header("Cache-Control", "no-cache"); c.header("Connection", "keep-alive"); await next();});app.post('/message', async (c) => { const message = 'test'; emitter.emit('message', message); return c.json({message});})app.get('/sse', async (c) => { return streamSSE(c, async (stream) => { const handler = async (message: string) => { await stream.writeSSE({ data: message, event: "message" }); } stream.onAbort(() => { console.log('Connection aborted'); }) emitter.on('message', handler);})})