Price Report

src/services/ebay.ts

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+import * as cheerio from 'cheerio';
+
+export async function fetchMedianSoldPriceUSDForSku(sku: string): Promise<number | null> {
+  const query = encodeURIComponent(`"${sku}"`);
+  const url = `https://www.ebay.com/sch/i.html?_nkw=${query}&LH_Sold=1&LH_Complete=1&rt=nc`;
+  const res = await fetch(url, {
+    headers: {
+      'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36'
+    } as any
+  } as any);
+  if (!res.ok) return null;
+  const html = await res.text();
+  const $ = cheerio.load(html);
+  const prices: number[] = [];
+  $('li.s-item').each((_i, el) => {
+    const priceText = $(el).find('.s-item__price').first().text().trim();
+    if (!priceText) return;
+    // Accept only USD (has $)
+    if (!priceText.includes('$')) return;
+    // Remove ranges like "$10.00 to $20.00"
+    const single = priceText.split(' to ')[0];
+    const num = single.replace(/[^0-9.]/g, '');
+    if (!num) return;
+    const value = Number(num);
+    if (!Number.isFinite(value) || value <= 0) return;
+    prices.push(value);
+  });
+  if (prices.length === 0) return null;
+  prices.sort((a, b) => a - b);
+  const mid = Math.floor(prices.length / 2);
+  if (prices.length % 2 === 0) {
+    return Number(((prices[mid - 1] + prices[mid]) / 2).toFixed(2));
+  } else {
+    return Number(prices[mid].toFixed(2));
+  }
+}
+
+