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// A different IP each time\n```\n\nSame signature as native `fetch()`.\n\n## How It Works\n\n```mermaid\nsequenceDiagram\n participant SDK as main.ts (SDK)\n participant Proxy as proxy.ts\n participant VT as Val Town API\n participant SA as ScraperAPI\n\n SDK->>Proxy: POST {url, method, headers, body} + Bearer token\n Proxy->>VT: verify token\n Proxy->>Proxy: check rate limit (100/min per user)\n Proxy->>SA: fetch via ScraperAPI\n SA-->>Proxy: response\n Proxy->>Proxy: log to SQLite\n Proxy-->>SDK: pass response through\n```\n\n## Files\n\n| File | Type | Purpose |\n|------|------|---------|\n| `main.ts` | script | SDK — exports `fetch()` |\n| `proxy.ts` | http | Auth, rate limit, proxy, log |\n| `database.ts` | script | SQLite logging + rate limiting |\n\n## Environment Variables\n\n| Key | Description |\n|-----|-------------|\n| `ScraperAPI_KEY` | [ScraperAPI](https://www.scraperapi.com/) API key |\n\n## Rate Limiting\n\n100 requests per minute per user. Returns `429` with `Retry-After: 60` header when exceeded.\n\n## Usage Tracking\n\nEvery request logged to `fetch_usage` table (indexed on `user_id, created_at`) with user_id, username, url, method, status_code, timestamp.\n","deleted","label","children",[],[169],{"_109":189,"_100":190,"_170":191,"_172":-5,"_173":155,"_174":175,"_176":122,"_111":192,"_105":33,"_179":193,"_181":194,"_183":22,"_184":-5,"_185":195,"_103":196},"d696973a-306b-11f1-a69c-42dde27851f2","database.ts","d696980c-306b-11f1-a69c-42dde27851f2",["D",1775337514484],"script","import { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\n\nlet initialized = false;\n\nexport async function ensureTable() {\n if (initialized) return;\n await sqlite.batch([\n {\n sql: `CREATE TABLE IF NOT EXISTS fetch_usage (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n user_id TEXT NOT NULL,\n username TEXT NOT NULL,\n url TEXT NOT NULL,\n method TEXT NOT NULL DEFAULT 'GET',\n status_code INTEGER,\n created_at TEXT NOT NULL DEFAULT (datetime('now'))\n )`,\n },\n { sql: `CREATE INDEX IF NOT EXISTS idx_fetch_usage_user_time ON fetch_usage (user_id, created_at)` },\n { sql: `CREATE INDEX IF NOT EXISTS idx_fetch_usage_created ON fetch_usage (created_at)` },\n ]);\n initialized = true;\n}\n\nexport async function logUsage(params: {\n userId: string;\n username: string;\n url: string;\n method: string;\n statusCode: number | null;\n}) {\n await ensureTable();\n await sqlite.execute({\n sql: `INSERT INTO fetch_usage (user_id, username, url, method, status_code) VALUES (?, ?, ?, ?, ?)`,\n args: [params.userId, params.username, params.url, params.method, params.statusCode],\n });\n}\n\n/**\n * Check if a user is within their rate limit.\n * Returns { allowed, count } where count is requests in the window.\n */\nexport async function checkRateLimit(\n userId: string,\n maxRequests: number,\n windowSeconds: number,\n): Promise<{ allowed: boolean; count: number }> {\n await ensureTable();\n const result = await sqlite.execute({\n sql: `SELECT COUNT(*) as cnt FROM fetch_usage\n WHERE user_id = ? AND created_at > datetime('now', ?)`,\n args: [userId, `-${windowSeconds} seconds`],\n });\n const count = (result.rows[0] as any)?.cnt ?? 0;\n return { allowed: count < maxRequests, count };\n}\n",[],[190],{"_109":198,"_100":199,"_170":200,"_172":-5,"_173":155,"_174":106,"_176":22,"_111":201,"_105":178,"_179":193,"_181":202,"_183":22,"_184":-5,"_185":203,"_103":204},"0837c480-306c-11f1-a959-42dde27851f2","main.ts","d696ab1c-306b-11f1-a69c-42dde27851f2",["D",1775337597751],"import { httpEndpoint } from \"https://esm.town/v/std/utils/index.ts\";\n\nlet cachedEndpoint: string | null = null;\n\nasync function getEndpoint(): Promise {\n if (cachedEndpoint) return cachedEndpoint;\n cachedEndpoint = await httpEndpoint(\"/proxy.ts\");\n return cachedEndpoint;\n}\n\n/**\n * Drop-in replacement for `fetch()` that routes requests through\n * rotating proxy IPs so each request appears to come from a\n * different IP address.\n *\n * @example\n * ```ts\n * import { fetch } from \"https://esm.town/v/std/fetch/main.ts\";\n *\n * const res = await fetch(\"https://httpbin.org/ip\");\n * console.log(await res.json()); // { origin: \"some.random.ip\" }\n * ```\n */\nexport async function fetch(\n input: string | URL | Request,\n requestInit?: RequestInit,\n): Promise {\n const endpoint = await getEndpoint();\n const token = Deno.env.get(\"valtown\");\n if (!token) throw new Error(\"std/fetch: 'valtown' env var not set\");\n\n // Extract url/method/headers/body from input\n let url: string;\n let method = \"GET\";\n const headers: Record = {};\n let body: string | undefined;\n\n if (input instanceof Request) {\n url = input.url;\n method = input.method;\n input.headers.forEach((v, k) => {\n headers[k] = v;\n });\n if (input.body) body = await input.text();\n } else {\n url = input.toString();\n }\n\n if (requestInit?.method) method = requestInit.method;\n if (requestInit?.headers) {\n new Headers(requestInit.headers).forEach((v, k) => {\n headers[k] = v;\n });\n }\n if (requestInit?.body !== undefined) {\n body = typeof requestInit.body === \"string\" ? requestInit.body : undefined;\n }\n\n const res = await globalThis.fetch(endpoint, {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/json\",\n Authorization: `Bearer ${token}`,\n },\n body: JSON.stringify({ url, method, headers, body }),\n });\n\n if (\n !res.ok && res.headers.get(\"content-type\")?.includes(\"application/json\")\n ) {\n const err = await res.json().catch(() => null);\n if (err?.error) throw new Error(err.error);\n }\n\n return res;\n}",[],[199],{"_109":206,"_100":104,"_170":207,"_172":-5,"_173":155,"_174":175,"_176":122,"_111":208,"_105":33,"_179":209,"_181":210,"_183":22,"_184":211,"_185":212,"_103":213},"d696b968-306b-11f1-a69c-42dde27851f2","d696ba26-306b-11f1-a69c-42dde27851f2",["D",1775337514484],"http","import { API_URL } from \"https://esm.town/v/std/API_URL\";\nimport { logUsage, checkRateLimit } from \"./database.ts\";\n\nasync function verifyToken(token: string): Promise<{ id: string; username: string } | null> {\n try {\n const res = await fetch(`${API_URL}/v1/me`, {\n headers: { Authorization: `Bearer ${token}` },\n });\n if (!res.ok) return null;\n const data = await res.json();\n return { id: data.id, username: data.username };\n } catch {\n return null;\n }\n}\n\nexport default async function handler(req: Request): Promise {\n try {\n return await handleRequest(req);\n } catch (err: any) {\n console.error(\"Unhandled error:\", err);\n return Response.json({ error: `Internal error: ${err.message}` }, { status: 500 });\n }\n}\n\nasync function handleRequest(req: Request): Promise {\n if (req.method === \"OPTIONS\") return new Response(null, { status: 204 });\n if (req.method !== \"POST\") {\n return Response.json({ error: \"POST only. Send { url, method?, headers?, body? }\" }, { status: 405 });\n }\n\n // Auth\n const authHeader = req.headers.get(\"Authorization\");\n if (!authHeader?.startsWith(\"Bearer \")) {\n return Response.json({ error: \"Missing Authorization: Bearer \" }, { status: 401 });\n }\n const user = await verifyToken(authHeader.slice(7));\n if (!user) {\n return Response.json({ error: \"Invalid Val Town token\" }, { status: 401 });\n }\n\n // Rate limit: 5 requests per minute per user\n const { allowed, count } = await checkRateLimit(user.id, 5, 60);\n if (!allowed) {\n return Response.json(\n { error: `Rate limit exceeded (${count}/5 per minute)` },\n { status: 429, headers: { \"Retry-After\": \"60\" } },\n );\n }\n\n // Parse request\n let body: { url: string; method?: string; headers?: Record; body?: string };\n try { body = await req.json(); } catch {\n return Response.json({ error: \"Invalid JSON\" }, { status: 400 });\n }\n if (!body.url) {\n return Response.json({ error: \"Missing 'url'\" }, { status: 400 });\n }\n\n const apiKey = Deno.env.get(\"ScraperAPI_KEY\");\n if (!apiKey) {\n return Response.json({ error: \"ScraperAPI_KEY not configured\" }, { status: 500 });\n }\n\n const method = body.method || \"GET\";\n\n // Build ScraperAPI URL\n const scraperUrl = new URL(\"http://api.scraperapi.com\");\n scraperUrl.searchParams.set(\"api_key\", apiKey);\n scraperUrl.searchParams.set(\"url\", body.url);\n\n let statusCode: number | null = null;\n try {\n const init: RequestInit = { method };\n if (body.headers) init.headers = new Headers(body.headers);\n if (body.body && ![\"GET\", \"HEAD\"].includes(method.toUpperCase())) init.body = body.body;\n\n const proxyRes = await fetch(scraperUrl.toString(), init);\n statusCode = proxyRes.status;\n\n // Log (fire and forget)\n logUsage({ userId: user.id, username: user.username, url: body.url, method, statusCode })\n .catch((e) => console.error(\"Log failed:\", e));\n\n // Pass the response straight through\n return new Response(proxyRes.body, {\n status: proxyRes.status,\n statusText: proxyRes.statusText,\n headers: proxyRes.headers,\n });\n } catch (err: any) {\n logUsage({ userId: user.id, username: user.username, url: body.url, method, statusCode })\n .catch(() => {});\n return Response.json({ error: `Proxy fetch failed: ${err.message}` }, { status: 502 });\n }\n}\n","random-ip",[],[104],{"_109":215,"_100":216,"_170":217,"_172":-5,"_173":155,"_174":175,"_176":122,"_111":218,"_105":33,"_179":193,"_181":219,"_183":22,"_184":-5,"_185":220,"_103":221},"d696d1fa-306b-11f1-a69c-42dde27851f2","test.ts","d696d27c-306b-11f1-a69c-42dde27851f2",["D",1775337514484],"import { fetch } from \"./main.ts\";\n\n// Test: simple GET — response should be the raw proxied response now\nconst res = await fetch(\"https://httpbin.org/ip\");\nconst body = await res.text();\nconsole.log(\"Body:\", 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