mercadolibre-car-scraper/dist/index.mjs

TypeScript-based web scraper for MercadoLibre car listings with foreign currency prices

// src/scraper.ts
import chromium from "@sparticuz/chromium";
async function getPuppeteerAndOptions() {
  const isLocal = !process.env.VERCEL;
  let puppeteer;
  let launchOptions;
  if (isLocal) {
    puppeteer = await import("puppeteer");
    launchOptions = {
      headless: true,
      args: ["--no-sandbox", "--disable-setuid-sandbox"]
    };
  } else {
    puppeteer = await import("puppeteer-core");
    launchOptions = {
      args: chromium.args,
      defaultViewport: chromium.defaultViewport,
      executablePath: await chromium.executablePath(),
      headless: "true"
    };
  }
  return { puppeteer, launchOptions };
}
async function scrapeMercadoLibre(producto) {
  if (!producto || typeof producto !== "string") {
    throw new Error("Producto debe ser una cadena de texto v\xE1lida");
  }
  const { puppeteer, launchOptions } = await getPuppeteerAndOptions();
  let browser = null;
  try {
    browser = await puppeteer.launch(launchOptions);
    const page = await browser.newPage();
    const BASE_URL = "https://autos.mercadolibre.com.ar";
    const query = producto.trim().replace(/\s+/g, "-");
    const url = `${BASE_URL}/${query}`;
    const response = await page.goto(url, {
      waitUntil: "networkidle2",
      timeout: 3e4
    });
    if (!response?.ok()) {
      throw new Error(`Error al cargar la p\xE1gina: ${response?.status()}`);
    }
    await page.waitForSelector(".ui-search-layout__item", { timeout: 1e4 });
    const preciosNoPesos = await page.evaluate(() => {
      const items = Array.from(document.querySelectorAll(".ui-search-layout__item"));
      const preciosFiltrados = [];
      items.forEach((item) => {
        const frontImageElem = item.querySelector(".poly-component__picture.poly-component__picture--contain");
        const precioElem = item.querySelector(".andes-money-amount__fraction");
        const simboloElem = item.querySelector(".andes-money-amount__currency-symbol");
        const tituloElem = item.querySelector(".poly-component__title");
        if (precioElem && simboloElem) {
          const frontImage = frontImageElem ? frontImageElem.src : "";
          const simbolo = simboloElem.textContent || "";
          const precio = precioElem.textContent || "";
          const titulo = tituloElem ? tituloElem.textContent || "Sin t\xEDtulo" : "Sin t\xEDtulo";
          if (simbolo.includes("U$S") || simbolo.includes("USD") || simbolo.includes("US") || simbolo.includes("\u20AC") || simbolo.includes("\xA3")) {
            preciosFiltrados.push({ titulo, simbolo, precio, frontImage });
          }
        }
      });
      return preciosFiltrados;
    });
    return preciosNoPesos;
  } finally {
    if (browser) await browser.close();
  }
}
export {
  scrapeMercadoLibre
};