51af249361
# Conflicts: # packages/api/src/llm/fo-blog-pipeline.ts # packages/api/src/routes/blog.ts # packages/scraper/src/scheduler.ts # packages/scraper/src/scrapers/fs-com.ts # packages/scraper/src/scrapers/gbics.ts
238 lines
8.7 KiB
TypeScript
238 lines
8.7 KiB
TypeScript
/**
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* SFPcables.com Scraper — 10Gtek's Retail Store
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*
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* sfpcables.com — Magento store with server-rendered HTML, real USD prices.
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* Product pages have clean <h2 class="product-name"> + <span class="price"> structure.
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* Rate limited: 1 req/2sec. TLS verification disabled (self-signed cert issues).
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*/
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import { pool, findOrCreateScrapedTransceiver, ensureVendor, upsertPriceObservation } from "../utils/db";
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import { contentHash } from "../utils/hash";
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const BASE = "https://www.sfpcables.com";
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const HEADERS = {
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"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
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Accept: "text/html,application/xhtml+xml",
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};
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const CATEGORIES = [
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{ path: "/sfp-1-25g-series", formFactor: "SFP", speed: "1G", speedGbps: 1 },
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{ path: "/sfp-transceivers", formFactor: "SFP+", speed: "10G", speedGbps: 10 },
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{ path: "/sfp28-transceivers", formFactor: "SFP28", speed: "25G", speedGbps: 25 },
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{ path: "/qsfp-transceivers", formFactor: "QSFP+", speed: "40G", speedGbps: 40 },
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{ path: "/100g-qsfp28-transceivers", formFactor: "QSFP28", speed: "100G", speedGbps: 100 },
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{ path: "/qsfp-dd-400g-transceivers", formFactor: "QSFP-DD", speed: "400G", speedGbps: 400 },
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{ path: "/xfp-transceivers", formFactor: "XFP", speed: "10G", speedGbps: 10 },
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{ path: "/2-5g-transceivers", formFactor: "SFP", speed: "2.5G", speedGbps: 2.5 },
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{ path: "/industrial-sfp-transceivers", formFactor: "SFP", speed: "1G", speedGbps: 1 },
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{ path: "/industrial-qsfp-transceivers", formFactor: "QSFP28", speed: "100G", speedGbps: 100 },
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{ path: "/8x50g-qsfp-dd-transceiver-optical-module", formFactor: "QSFP-DD", speed: "400G", speedGbps: 400 },
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{ path: "/8x100g-qsfp-dd-transceiver-optical-module", formFactor: "QSFP-DD", speed: "800G", speedGbps: 800 },
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{ path: "/osfp-flat-fiber-optic-transceiver-modules", formFactor: "OSFP", speed: "400G", speedGbps: 400 },
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{ path: "/400g-8x50g-osfp-fin-fiber-optic-transceiver-modules", formFactor: "OSFP", speed: "400G", speedGbps: 400 },
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{ path: "/fc16g-sfp-transceivers", formFactor: "SFP+", speed: "16G FC", speedGbps: 16 },
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{ path: "/fc32g-sfp-transceivers", formFactor: "SFP28", speed: "32G FC", speedGbps: 32 },
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];
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interface Product {
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partNumber: string;
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name: string;
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url: string;
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price?: number;
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formFactor: string;
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speed: string;
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speedGbps: number;
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reachLabel?: string;
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reachMeters?: number;
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fiberType?: string;
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wavelength?: string;
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}
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function sleep(ms: number): Promise<void> {
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return new Promise((resolve) => setTimeout(resolve, ms));
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}
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function detectReach(text: string): { label: string; meters: number } | undefined {
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const patterns: [RegExp, string, number][] = [
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[/\b120\s*km\b/i, "120km", 120000],
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[/\b80\s*km\b/i, "80km", 80000],
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[/\b40\s*km\b/i, "40km", 40000],
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[/\b20\s*km\b/i, "20km", 20000],
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[/\b10\s*km\b/i, "10km", 10000],
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[/\b2\s*km\b/i, "2km", 2000],
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[/\b550\s*m\b/i, "550m", 550],
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[/\b500\s*m\b/i, "500m", 500],
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[/\b400\s*m\b/i, "400m", 400],
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[/\b300\s*m\b/i, "300m", 300],
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[/\b150\s*m\b/i, "150m", 150],
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[/\b100\s*m\b/i, "100m", 100],
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[/\b30\s*m\b/i, "30m", 30],
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[/\bLR4\b/, "10km", 10000],
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[/\bLR\b/, "10km", 10000],
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[/\bER4?\b/, "40km", 40000],
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[/\bZR4?\b/, "80km", 80000],
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[/\bSR4?\b/, "300m", 300],
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[/\bDR4?\b/, "500m", 500],
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[/\bFR4?\b/, "2km", 2000],
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];
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for (const [regex, label, meters] of patterns) {
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if (regex.test(text)) return { label, meters };
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}
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return undefined;
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}
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function detectFiber(text: string): string {
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if (/single.?mode|smf|[^a-z]lx[^a-z]|[^a-z]lr[^a-z]|[^a-z]er[^a-z]|[^a-z]zr[^a-z]|bidi|cwdm|dwdm/i.test(text)) return "SMF";
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if (/multi.?mode|mmf|[^a-z]sx[^a-z]|[^a-z]sr[^a-z]/i.test(text)) return "MMF";
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if (/copper|dac|twinax|rj.?45|base-t|cat[56x]/i.test(text)) return "Copper";
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return "";
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}
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function detectWavelength(text: string): string {
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const match = text.match(/(\d{3,4})\s*nm/i);
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if (match) return match[1];
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return "";
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}
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function parseProductList(html: string, cat: typeof CATEGORIES[number]): Product[] {
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const products: Product[] = [];
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// Magento product listing: <h2 class="product-name"><a href="URL" title="NAME">NAME</a></h2>
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// Prices: <span class="price">US$XX.XX</span>
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const productRegex = /<h2\s+class="product-name">\s*<a\s+href="([^"]+)"[^>]*title="([^"]+)"[^>]*>/gi;
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let match;
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while ((match = productRegex.exec(html)) !== null) {
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const url = match[1];
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const name = match[2].trim();
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if (name.length < 5) continue;
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// Find price after this product name (within next 800 chars)
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const afterContext = html.slice(match.index, match.index + 800);
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const priceMatch = afterContext.match(/class="price">\s*US?\$\s*([\d,.]+)/);
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const price = priceMatch ? parseFloat(priceMatch[1].replace(",", "")) : undefined;
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const reach = detectReach(name);
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// Build part number from URL slug
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const slug = url.split("/").filter(Boolean).pop() || "";
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const partNumber = slug.replace(/-\d+$/, "").slice(0, 80);
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products.push({
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partNumber,
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name,
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url,
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price: price && price > 0 && price < 50000 ? price : undefined,
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formFactor: cat.formFactor,
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speed: cat.speed,
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speedGbps: cat.speedGbps,
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reachLabel: reach?.label,
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reachMeters: reach?.meters,
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fiberType: detectFiber(name),
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wavelength: detectWavelength(name),
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});
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}
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// Dedupe by URL
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const seen = new Set<string>();
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return products.filter((p) => {
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if (seen.has(p.url)) return false;
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seen.add(p.url);
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return true;
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});
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}
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async function fetchPage(url: string): Promise<string> {
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const resp = await fetch(url, {
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headers: HEADERS,
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signal: AbortSignal.timeout(30000),
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});
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if (!resp.ok) throw new Error(`HTTP ${resp.status} for ${url}`);
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return resp.text();
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}
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export async function scrapeSfpCables(): Promise<void> {
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console.log("=== SFPcables.com Scraper Starting ===\n");
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const vendorId = await ensureVendor("SFPcables", "compatible", "https://www.sfpcables.com", "https://www.sfpcables.com/transceivers");
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let totalProducts = 0;
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let priceUpdates = 0;
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for (const cat of CATEGORIES) {
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console.log(`\n--- ${cat.formFactor} (${cat.speed}) [${cat.path}] ---`);
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try {
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const html = await fetchPage(BASE + cat.path);
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const catProducts = parseProductList(html, cat);
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console.log(` Found ${catProducts.length} products`);
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// Check for pagination (Magento uses ?p=N)
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const pageLinks = html.match(/[?&]p=(\d+)/g);
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let maxPage = 1;
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if (pageLinks) {
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for (const pl of pageLinks) {
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const n = parseInt(pl.replace(/[^0-9]/g, ""));
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if (n > maxPage) maxPage = n;
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}
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}
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// Fetch additional pages
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for (let page = 2; page <= Math.min(maxPage, 10); page++) {
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await sleep(2000);
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try {
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const pageHtml = await fetchPage(`${BASE}${cat.path}?p=${page}`);
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const pageProducts = parseProductList(pageHtml, cat);
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catProducts.push(...pageProducts);
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console.log(` Page ${page}: ${pageProducts.length} products`);
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} catch (err) {
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console.warn(` Page ${page} failed: ${(err as Error).message}`);
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}
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}
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for (const product of catProducts) {
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try {
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const txId = await findOrCreateScrapedTransceiver({
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partNumber: product.partNumber,
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vendorId,
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formFactor: product.formFactor,
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speedGbps: product.speedGbps,
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speed: product.speed,
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reachMeters: product.reachMeters,
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reachLabel: product.reachLabel,
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fiberType: product.fiberType,
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wavelengths: product.wavelength,
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category: "DataCenter",
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});
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if (product.price && product.price > 0) {
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const hash = contentHash({ price: product.price, part: product.partNumber });
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const updated = await upsertPriceObservation({
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transceiverId: txId,
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sourceVendorId: vendorId,
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price: product.price,
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currency: "USD",
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stockLevel: "in_stock",
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url: product.url,
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contentHash: hash,
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});
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if (updated) priceUpdates++;
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}
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totalProducts++;
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} catch (err) {
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console.warn(` Error: ${(err as Error).message.slice(0, 80)}`);
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}
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}
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} catch (err) {
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console.error(` Category failed: ${(err as Error).message}`);
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}
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await sleep(2000);
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}
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console.log(`\n=== SFPcables Complete: ${totalProducts} products, ${priceUpdates} prices ===`);
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}
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if (require.main === module) {
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scrapeSfpCables()
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.then(() => pool.end())
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.catch((err) => { console.error("Fatal:", err); pool.end(); process.exit(1); });
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}
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