fratzinger/feathers-utils

import type { HookContext } from "@feathersjs/feathers";
import { getItemsIsArray } from "../utils/getItemsIsArray";

/**
 * Parse fields to date or number
 * skips undefined fields
 */
export const parseFields =
  (type: "date" | "number", options: { fields: string[] }) =>
  (context: HookContext) => {
    const { items } = getItemsIsArray(context);

    items.forEach((item) => {
      options.fields.forEach((field) => {
        // ignore undefined fields
        if (!(field in item)) {
          return;
        }

        if (type === "date") {
          item[field] = new Date(item[field]);
        } else if (type === "number") {
          item[field] = Number(item[field]);
        }
      });
    });

    return context;
  };