Clip all available BJ's coupons

BJs_clipAllOffers.js

// ==UserScript==
// @name        BJ's Coupon Clipper
// @namespace   Violentmonkey Scripts
// @match       https://www.bjs.com/
// @grant       none
// @version     1.0
// @author      @raxityo
// @description 3/24/2024, 11:01:30 PM
// ==/UserScript==

/**
 * Clip all available BJ's coupons
 * - Login to BJ's website
 * - Open dev console and paste this function
 * - Run it! Example `await clipAllOffers()`
 * @return {Promise<T>}
 */
(async function clipAllOffers() {
  const membershipNumber = localStorage.getItem("x_MembershipNumber");
  const zipcode = JSON.parse(
    localStorage.getItem("clubDetailsForClubId")
  ).postalCode;
  await fetch(
    "https://api.bjs.com/digital/live/api/v1.0/member/available/offers",
    {
      method: "post",
      credentials: "include",
      body: JSON.stringify({
        membershipNumber,
        zipcode,
        category: "",
        isPrev: false,
        isNext: true,
        pagesize: 500,
        searchString: "",
        indexForPagination: 0,
        brand: ""
      })
    }
  )
    .then((r) => r.json())
    .then(([{ availableOffers }]) => {
      // Intentionally doing sequential requests to avoid hammering the backend
      availableOffers.forEach(async ({ offerId, storeId }) => {
        await fetch(
          `https://api.bjs.com/digital/live/api/v1.0/store/${storeId}/coupons/activate?zip=07302&offerId=${offerId}`,
          {
            credentials: "include"
          }
        );
      });
    });
})().then();

@raxityo Great idea. Thanks for the tip and the code!