Hooks stopped working after upgrading

[MattPhantastic]

Describe the bug

After following these two issues:

1. Cannot read properties of undefined (reading 'startsWith') vite-plugin-svelte#1053
2. TypeScript nodes still causing code generation failures #14743

I've upgraded my Svelte version to the, as of current, latest 5.14.3. Hooks have completely stopped working for me. I can't even write a string to the console. My src/hooks.ts is essentially being ignored.

Reproduction

1. Install new a new project with the latest version of SvelteKit
2. Create a src/hooks.ts file:

import type { Handle } from "@sveltejs/kit";
export const handle: Handle = async ({ event, resolve }) => {
  console.log("Hooks?");
  const response = await resolve(event);
  return response;
};

Logs

No response

System Info

System:
  OS: macOS 14.6.1
  CPU: (8) arm64 Apple M2
  Memory: 120.38 MB / 8.00 GB
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 20.18.0 - ~/Library/pnpm/node
  npm: 10.8.2 - ~/Library/pnpm/npm
  pnpm: 9.12.3 - ~/Library/pnpm/pnpm
Browsers:
  Brave Browser: 131.1.73.101
  Safari: 17.6
npmPackages:
  svelte: ^5.14.3 => 5.14.3 

Severity

blocking an upgrade

[cloudymeatball]

handle is only available in hooks.server.js/ts.

Right now if using handle in universal hook, it is typed as

({ event, resolve }: {
    event: any;
    resolve: any;
}) => Promise<any>

It may be less confusing to type it as never, along with a note that it is only available in server-side hooks.

EDIT: Also ideally a warning is given when trying to import server hook types such as Handle into non-server hooks. Personally I'm not sure how easy it is to implement such a warning or error.

[paoloricciuti]

As pointed out handle is only available in hooks.server.ts...this was a bug in kit that was fixed in sveltejs/kit#13104

You can just move your hook to hooks.server.ts, therefore closing this but thanks for reporting