If you need real-time updates (like for chat or notifications), tRPC supports subscriptions (via SSE or WebSockets). You’ll set up a special link on the client and define .subscription() procedures on the server. Check tRPC docs for the exact approach (since it can differ between SSE and WS). Example snippet on the server:

onNewUser: publicProcedure.subscription(() => {
	// Return a subscription that emits whenever a new user is created
});

Then on the client:

client.user.onNewUser.subscribe(undefined, {
	next(data) {
		console.log('New user:', data);
	},
});