Invariant failed: createServerFn must be called with a function that is marked with the 'use server' pragma.

[SeyyedKhandon]

This server function:

const getHashId = createServerFn("GET", () => storage.hashId);

results in :

Invariant failed: createServerFn must be called with a function that is marked with the 'use server' pragma. Are you using the @tanstack/router-plugin/vite ?

while it works for:

const getHashId = createServerFn("GET", () => {
  return storage.hashId;
});

I am curious what is the reason?

[schiller-manuel]

this looks like a bug in our compiler.
however, since server functions are currently re-written, let's wait until this is done and the revisit this issue if it still exists.

[SeyyedKhandon]

Should we file a bug report for it, or marking this as a bug in case we dont miss it later then?

[schiller-manuel]

sure create a GitHub issue and we will follow up there. ideally, create a failing unit test as a PR

[SeyyedKhandon]

Bug report :
#2441