Clarification in documentation on setting cookies

[jweatherby]

Hi! I'm getting started with sveltekit and trpc and am really happy so far! I'm just a bit stuck on how to best set cookies from a mutation. I have a pretty standard pattern, but couldn't find information in the docs on Authentication on how to best translate this bit of code into sveltekit-trpc as the result of a mutation:

cookies.set('jwt', jwt.sign({ id, name }, JWT_SECRET), { path: '/', secure: false });

Thanks!

[jweatherby]

Update: I was able to figure this out with the following:

// hooks.server.ts

const trpcHandle = createTRPCHandle({
  router, createContext, responseMeta: (ctx) => {
    const { data: [{ error, result }], paths } = ctx
    let headers
    if (paths?.includes('account.login') && !error) {
      headers = {
        'Set-Cookie': buildCookie(/* ...result.data */)
      }
    }
    return { headers }
  }
});

Not sure if this is the best approach, but it does the trick.