Convex with TanStack Start

Server-Side Rendering and Live Queries

TanStack Start routes render on the server for the first pageload of a browsing session. Neither the React Query nor standard Convex useQuery() hooks kick off requests for this data during this initial SSR pass, but the React Query hook useSuspenseQuery() does. The React Query client is then serialized with whatever data was loaded to make it available in the browser at hydration time. This reduces rendering on the server and updating on the client from two steps to one step: isomorphic data fetching with a single hook.

Try reloading this page to see the difference between useSuspenseQuery() and useQuery().

5
User 5664/2/25, 9:17 AM

hey Nipunn... I'll be late to make the meeting tomorrow morning

3
User 3034/2/25, 9:17 AM

Hi Emma; I'll be late to make the meeting tomorrow morning

5
User 564/2/25, 9:17 AM

hi Jamie- I'll be late to make the meeting tomorrow morning

3
User 3134/2/25, 9:17 AM

hey Emma... what's your favorite ice cream place?

7
User 7624/2/25, 9:17 AM

Hi Jamie- how was your weekend?

6
User 6804/2/25, 9:17 AM

hey Jamie, Could you let the customer know we've fixed their issue?

5
User 5904/2/25, 9:17 AM

hey James; what's your favorite ice cream place?

4
User 4134/2/25, 9:17 AM

Hi James, what's your favorite ice cream place?

2
User 234/2/25, 9:17 AM

hey James... how's the weather in SF?

8
User 8894/2/25, 9:17 AM

Hi James... how was your weekend?

2
User 2564/2/25, 9:17 AM

hello James, Could you let the customer know we've fixed their issue?

4
User 4854/2/25, 9:17 AM

hey Nipunn; Could you let the customer know we've fixed their issue?

7
User 7394/2/25, 9:17 AM

hi Jamie, Could you let the customer know we've fixed their issue?

4
User 4424/2/25, 9:17 AM

hey Jamie! how's the weather in SF?

3
User 39154/2/25, 9:17 AM

hey James, how was your weekend?

7
User 7834/2/25, 9:17 AM

hey Jamie; I'll be late to make the meeting tomorrow morning

3
User 3124/2/25, 9:17 AM

Hi James; Could you let the customer know we've fixed their issue?

8
User 8944/2/25, 9:16 AM

hello Jamie, how was your weekend?

3
User 3014/2/25, 9:16 AM

hello James; how's the weather in SF?

6
User 6114/2/25, 9:16 AM

hey Emma- how was your weekend?

1const { data } = useSuspenseQuery(convexQuery(
2  api.messages.listMessages,
3  { channel: "chatty" }
4))
1const { data, isPending } = useQuery(convexQuery(
2  api.messages.listMessages,
3  { channel: "chatty" }
4))

On the browser these queries resume their subscriptions which you can see by .

Another way to opt into server-side data loading is to load the query in a loader.

Learn More

TanStack Start SSR Guide