ActionResult

ActionResult = Result<undefined, Error>

Defined in: packages/client/src/lib/command-processor/action-result.ts:22

Result returned by a vessel action handler.

Domain alias over the protocol’s generic Result that tightens the error channel to Error. Vessel author handlers signal success with ok(value) and failure with err(new Error(...)) from @maelstrom-co/protocol.

Example

import { ok, err } from '@maelstrom-co/protocol';
import type { ActionResult } from '@maelstrom-co/client';

const handler = async (params: { orderId: string }): Promise<ActionResult> => {
  if (!params.orderId) return err(new Error('orderId required'));
  return ok(undefined);
};