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Try Luma's internal discover API (no key needed, pure HTTP)\n * 2. Fall back to Firecrawl if the internal API blocks (free key at firecrawl.dev)\n *\n * Environment variables (set in val.town Settings → Environment Variables):\n * FIRECRAWL_API_KEY — optional, only needed if Luma's API returns empty\n */\n\nconst LUMA_GEO = \"singapore\";\nconst SINGAPORE_LAT = 1.3521;\nconst SINGAPORE_LNG = 103.8198;\n\nexport default async function handler(_req: Request): Promise {\n let events: LumaEvent[] = [];\n\n // ── Strategy 1: Luma internal discover API ───────────────────────────────\n events = await fetchViaLumaAPI();\n\n // ── Strategy 2: Firecrawl fallback ──────────────────────────────────────\n if (events.length === 0) {\n const fcKey = Deno.env.get(\"FIRECRAWL_API_KEY\");\n if (fcKey) {\n events = await fetchViaFirecrawl(fcKey);\n }\n }\n\n if (events.length === 0) {\n return new Response(\n \"No events found. If Luma's API changed, add a FIRECRAWL_API_KEY env var (free at firecrawl.dev).\",\n { status: 502 },\n );\n }\n\n return new Response(buildRss(events), {\n headers: {\n \"Content-Type\": \"application/rss+xml; charset=utf-8\",\n \"Cache-Control\": \"public, max-age=1800\", // cache 30 min\n },\n });\n}\n\n// ── Types ─────────────────────────────────────────────────────────────────\n\ninterface LumaEvent {\n title: string;\n link: string;\n description: string;\n imageUrl?: string;\n pubDate?: string;\n author?: string;\n}\n\n// ── Strategy 1: Luma internal API ─────────────────────────────────────────\n// Luma's discovery page makes XHR calls to their backend.\n// We try multiple known endpoint patterns — whichever one works, we use.\n\nasync function fetchViaLumaAPI(): Promise {\n const endpoints = [\n // Slug-based (most likely for named city pages)\n `https://api.lu.ma/discover/get-paginated-events?discover_geo=${LUMA_GEO}&pagination_limit=50`,\n // Coordinate-based (what Apify scrapers use after geocoding)\n `https://api.lu.ma/discover/get-paginated-events?latitude=${SINGAPORE_LAT}&longitude=${SINGAPORE_LNG}&pagination_limit=50&radius=50`,\n // Alternate slug format\n `https://api.lu.ma/discover/get-paginated-events?geo=${LUMA_GEO}&pagination_limit=50`,\n ];\n\n const headers = {\n \"Accept\": \"application/json\",\n \"x-luma-client-type\": \"web\",\n \"Origin\": \"https://luma.com\",\n \"Referer\": \"https://luma.com/singapore\",\n };\n\n for (const url of endpoints) {\n try {\n const res = await fetch(url, { headers });\n if (!res.ok) continue;\n const data = await res.json();\n\n // Luma API response shape: { entries: [...], pagination: {...} }\n // Each entry: { event: { name, url, start_at, cover_url, ... }, ... }\n const entries: any[] = data?.entries ?? data?.events ?? data?.data ?? [];\n if (entries.length === 0) continue;\n\n return entries.map((entry: any) => {\n const ev = entry.event ?? entry;\n const slug = ev.url ?? ev.api_id ?? \"\";\n const link = slug.startsWith(\"http\") ? slug : `https://lu.ma/${slug}`;\n return {\n title: ev.name ?? \"Untitled Event\",\n link,\n description: [ev.description, ev.geo_address_info?.address].filter(\n Boolean,\n ).join(\" · \"),\n imageUrl: ev.cover_url ?? ev.image_url,\n pubDate: ev.start_at\n ? new Date(ev.start_at).toUTCString()\n : undefined,\n author: ev.calendar?.name ??\n ev.hosts?.map((h: any) => h.name).join(\", \"),\n };\n });\n } catch {\n continue;\n }\n }\n\n return [];\n}\n\n// ── Strategy 2: Firecrawl ─────────────────────────────────────────────────\n// Firecrawl renders JS, returns clean markdown. Free tier: 500 pages/month.\n// Get a key at https://firecrawl.dev\n\nasync function fetchViaFirecrawl(apiKey: string): Promise {\n try {\n const res = await fetch(\"https://api.firecrawl.dev/v1/scrape\", {\n method: \"POST\",\n headers: {\n \"Authorization\": `Bearer ${apiKey}`,\n \"Content-Type\": \"application/json\",\n },\n body: JSON.stringify({\n url: \"https://luma.com/singapore\",\n formats: [\"markdown\"],\n onlyMainContent: true,\n waitFor: 3000, // wait 3s for JS to render\n }),\n });\n\n const data = await res.json();\n const markdown: string = data?.data?.markdown ?? \"\";\n return parseMarkdownEvents(markdown);\n } catch {\n return [];\n }\n}\n\n// Parse events from Firecrawl markdown output\nfunction parseMarkdownEvents(md: string): LumaEvent[] {\n const events: LumaEvent[] = [];\n // Luma renders events as: ### Event Title\\n\\nBy Author\\n\\nVenue\n const blocks = md.split(/\\n(?=###\\s)/);\n\n for (const block of blocks) {\n const titleMatch = block.match(/^###\\s+(.+)/m);\n if (!titleMatch) continue;\n const title = titleMatch[1].trim();\n if (title.length < 4) continue;\n\n // Find luma.com links\n const linkMatch = block.match(\n /https?:\\/\\/(?:luma\\.com|lu\\.ma)\\/([a-zA-Z0-9_-]+)/,\n );\n const link = linkMatch ? linkMatch[0] : `https://luma.com/singapore`;\n\n const lines = block\n .replace(/#{1,6}\\s.+/g, \"\")\n .split(\"\\n\")\n .map((l) => l.replace(/[*[\\]()]/g, \"\").trim())\n .filter((l) => l && l.length > 1 && !l.startsWith(\"http\"));\n\n events.push({\n title,\n link,\n description: lines.slice(0, 4).join(\" · \"),\n });\n }\n\n return events;\n}\n\n// ── RSS builder ───────────────────────────────────────────────────────────\n\nfunction buildRss(events: LumaEvent[]): string {\n const now = new Date().toUTCString();\n const items = events.map((e) => `\n \n ${x(e.title)}\n ${x(e.link)}\n ${x(e.link)}\n ${x(e.description)}\n ${e.author ? `${x(e.author)}` : \"\"}\n ${e.pubDate ? `${x(e.pubDate)}` : \"\"}\n ${\n e.imageUrl\n ? ``\n : \"\"\n }\n `).join(\"\\n\");\n\n return `\n\n \n Popular Events in Singapore · Luma\n https://luma.com/singapore\n Discover the hottest events in Singapore — tech, innovation, culture, fitness, and more.\n en-sg\n ${now}\n \n ${items}\n \n`;\n}\n\nfunction x(s = \"\"): string {\n return s.replace(/&/g, \"&\").replace(//g, \">\")\n .replace(/\"/g, \""\");\n}","/**\n * Luma Singapore — Live RSS Feed via Jina Reader\n * Deploy at https://val.town/new as an HTTP val.\n *\n * No API keys needed. Jina Reader (r.jina.ai) is free and renders JS pages.\n * Your RSS URL: https://YOUR_USERNAME.web.val.run/\n */\n\nexport default async function handler(_req: Request): Promise {\n // ── 1. Fetch Luma Singapore via Jina Reader ──────────────────────────────\n // Jina uses headless Chrome — handles JS-rendered pages, totally free.\n let markdown = \"\";\n try {\n const res = await fetch(\"https://r.jina.ai/https://luma.com/singapore\", {\n headers: {\n \"Accept\": \"text/plain\",\n \"X-Timeout\": \"25\", // give JS time to render\n \"X-Return-Format\": \"markdown\",\n },\n });\n if (!res.ok) throw new Error(`Jina status ${res.status}`);\n markdown = await res.text();\n } catch (err) {\n return new Response(`Failed to fetch via Jina: ${err}`, { status: 502 });\n }\n\n // ── 2. Parse events from the markdown ────────────────────────────────────\n const events = parseEvents(markdown);\n\n if (events.length === 0) {\n // Return the raw markdown so we can debug what Jina returned\n return new Response(\n `No events parsed. Raw Jina output (first 3000 chars):\\n\\n${\n markdown.slice(0, 3000)\n }`,\n { status: 200, headers: { \"Content-Type\": \"text/plain\" } },\n );\n }\n\n // ── 3. Serve RSS ──────────────────────────────────────────────────────────\n return new Response(buildRss(events), {\n headers: {\n \"Content-Type\": \"application/rss+xml; charset=utf-8\",\n \"Cache-Control\": \"public, max-age=1800\",\n },\n });\n}\n\n// ── Parser ────────────────────────────────────────────────────────────────\n// Luma's SSR markdown renders events in a repeating block:\n//\n// [/slug](https://luma.com/slug)\n// ### Event Title\n// By Organiser Name\n// Venue Name\n// [optional] Sold Out | Waitlist\n// [optional] +N\n//\n// We split on the link pattern and extract fields from each block.\n\ninterface Event {\n title: string;\n link: string;\n description: string;\n author: string;\n imageUrl: string;\n}\n\nfunction parseEvents(md: string): Event[] {\n const events: Event[] = [];\n const seen = new Set();\n\n // Match event card anchors: [/slug](https://luma.com/slug)\n // A slug is 6–30 alphanumeric/dash chars\n const linkPattern =\n /\\[\\/([a-zA-Z0-9_-]{4,40})\\]\$https:\\/\\/luma\\.com\\/([a-zA-Z0-9_-]{4,40})\$/g;\n\n // Split the markdown at each event link to get blocks\n const parts = md.split(\n /(?=\\[\\/[a-zA-Z0-9_-]{4,40}\\]\$https:\\/\\/luma\\.com\\/)/,\n );\n\n for (const part of parts) {\n const linkMatch = part.match(\n /\\[\\/([a-zA-Z0-9_-]{4,40})\\]\\((https:\\/\\/luma\\.com\\/[a-zA-Z0-9_-]{4,40})\$/,\n );\n if (!linkMatch) continue;\n\n const link = linkMatch[2];\n if (seen.has(link)) continue;\n\n // Skip nav/utility links\n const slug = linkMatch[1];\n const skipSlugs = [\n \"discover\",\n \"signin\",\n \"pricing\",\n \"app\",\n \"singapore\",\n \"sf\",\n \"nyc\",\n ];\n if (skipSlugs.includes(slug)) continue;\n seen.add(link);\n\n // Title: ### heading\n const titleMatch = part.match(/###\\s+(.+)/);\n if (!titleMatch) continue;\n const title = titleMatch[1].trim();\n if (title.length < 4) continue;\n\n // Organiser: line starting with \"By \"\n const authorMatch = part.match(/By\\s+(.+)/);\n const author = authorMatch ? authorMatch[1].trim() : \"\";\n\n // Venue: line after the \"By\" line (skip blank lines and status words)\n const lines = part\n .split(\"\\n\")\n .map((l) => l.replace(/\\[.*?\\]\$.*?\$/g, \"\").replace(/[*_#]/g, \"\").trim())\n .filter((l) => l.length > 1);\n\n const skipWords = /^(By |Sold Out|Waitlist|\\+\\d|Subscribe|Submit)/i;\n const descLines: string[] = [];\n for (const line of lines) {\n if (line === title) continue;\n if (line.startsWith(\"By \")) {\n descLines.push(line);\n continue;\n }\n if (skipWords.test(line)) continue;\n descLines.push(line);\n if (descLines.length >= 3) break;\n }\n\n // Status badges\n const status = /Sold Out/i.test(part)\n ? \" [Sold Out]\"\n : /Waitlist/i.test(part)\n ? \" [Waitlist]\"\n : \"\";\n\n // Thumbnail: Luma embeds CDN image URLs\n const imgMatch = part.match(/https:\\/\\/images\\.lumacdn\\.com\\/[^\\s\")]+/);\n\n events.push({\n title,\n link,\n description: descLines.join(\" · \") + status,\n author,\n imageUrl: imgMatch ? imgMatch[0] : \"\",\n });\n }\n\n return events;\n}\n\n// ── RSS builder ───────────────────────────────────────────────────────────\n\nfunction buildRss(events: Event[]): string {\n const now = new Date().toUTCString();\n const items = events\n .map(\n (e) => `\n \n ${x(e.title)}\n ${x(e.link)}\n ${x(e.link)}\n ${x(e.description)}\n ${e.author ? 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Diff · v6