T

TanStack•4mo ago•

4 replies

efficient-indigo

How do I run a server function during SSR?

I'm using TS Start with React Query (based on this example https://tanstack.com/start/latest/docs/framework/react/examples/start-basic-react-query) and I want to get a theme cookie during SSR so I don't get a flash of inaccurate color theme.

It looks like if I put the server function in the

loader

loader

it works but doesn't update and if I put it in a

useQuery

useQuery

it updates dynamically but flashes a null / system theme first.

I could wire up the loader to pass initial data to the query client but I want to make sure I'm not making it too complicated.

Thanks!

React TanStack Start Start Basic React Query) Example | TanStack St...

An example showing how to implement Start Basic React Query) in React using TanStack Start.