@unchainedshop/core-events/src/module/configureEventHistoryAdapter.ts

This package defines the event module which ensures the emitted events are written to the database as an Event History and offers a core module to search for events.

import { getEmitHistoryAdapter, setEmitHistoryAdapter, EmitAdapter } from '@unchainedshop/events';
import { RawPayloadType } from '@unchainedshop/events';

export const configureEventHistoryAdapter = (
  createFn: ({ type, payload }: RawPayloadType<any> & { type: string }) => Promise<unknown>,
) => {
  if (!getEmitHistoryAdapter()) {
    const adapter: EmitAdapter = {
      subscribe: () => {
        // Do nothing
      },
      publish: async (eventName, { payload }) => {
        await createFn({
          type: eventName,
          payload,
        });
      },
    };
    setEmitHistoryAdapter(adapter);
  }
};