aryzing•14mo ago

How to make typed error responses in the context of a specific query?

Each query has a typed (success) response, although it seems all queries have a shared type for the error response. Is there a way of having per-query typed error responses? Is there a better alternative to having an error within a successful response, as below?

const appRouter = router({
  foo: publicProcedure.query(() => {
    const [error, data] = doSomething();

    if (error) return {
      isSuccess: false,
      error,
    };

    return {
      isSuccess: true,
      data
    };
  })
});

const appRouter = router({
  foo: publicProcedure.query(() => {
    const [error, data] = doSomething();

    if (error) return {
      isSuccess: false,
      error,
    };

    return {
      isSuccess: true,
      data
    };
  })
});

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How to make typed error responses in the context of a specific query?

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