search.js

import fetch from "node-fetch";
import UserAgent from "user-agents";
import cookie from "cookie";

const cookies = new Map();

//fetches a Vinted cookie to authenticate the requests
const fetchCookie = (domain = "be") => {
  return new Promise((resolve, reject) => {
    const controller = new AbortController();
    fetch(`https://vinted.${domain}`, {
      signal: controller.signal,
      headers: {
        "user-agent": new UserAgent().toString(),
      },
    })
      .then((res) => {
        const sessionCookie = res.headers.get("set-cookie");
        controller.abort();
        const c = cookie.parse(sessionCookie)["secure, _vinted_fr_session"];
        if (c) {
          //console.log(c);
          cookies.set(domain, c);
        }
        resolve(c);
      })
      .catch((err) => {
        controller.abort();
        reject(err);
      });
  });
};

//gets a bunch of parameters right into the url, not really used but just handy in case :)
const parseVintedURL = (params, order = "newest_first") => {
  let newParams = {
    order : order,
    domain : "be",
    catalog_ids : params.catalogId || "",
    color_ids : "",
    brand_ids : params.brandId || "",
    size_ids : "",
    material_ids : "",
    video_game_rating_ids : "",
    status_ids : "",
    is_for_swap : 0,
    page : 1,
    per_page : 24
  }
  return `https://www.vinted.${newParams.domain}/api/v2/catalog/items?order=${newParams.order}&catalog_ids=${newParams.catalog_ids}&color_ids=${newParams.color_ids}&brand_ids=${newParams.brand_ids}&size_ids=${newParams.size_ids}&material_ids=${newParams.material_ids}&video_game_rating_ids=${newParams.video_game_rating_ids}&status_ids=${newParams.status_ids}&is_for_swap=${newParams.is_for_swap}&page=${newParams.page}&per_page=${newParams.per_page}`;
};

//searches something on vinted, using the 'newest first' order by default

/**
 * Search an item on vinted
 *
 * @param {string} search_text - The text to search
 * @param {string} order - The order of the results (optional, default is newest_first)
 * @returns {Promise} A promise that resolves to the results
 */
const vintedSearch = (params = {}, order = "newest_first") => {
  return new Promise(async (resolve, reject) => {
    var c = cookies.get("be") || (await fetchCookie("be"));
    const controller = new AbortController();
    fetch(parseVintedURL(params, order), {
      headers: {
        "user-agent": new UserAgent(),
        cookie: "_vinted_fr_session=" + c,
        accept: "application/json, text/plain, */*",
      },
    })
      .then((res) => {
        controller.abort();
        res.json().then((data) => {
          resolve(data);
        });
      })
      .catch((err) => {
        controller.abort();
        reject(err);
      });
  });
};

export default vintedSearch;