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Monorepo for Tangled
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TypeScript
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970import { Container } from "@cloudflare/containers";
export interface Env { BOBBIN: DurableObjectNamespace<BobbinContainer>; RATE_LIMITER: RateLimit; BOBBIN_HYDRANT_URL: string; BOBBIN_SLINGSHOT_URL: string; BOBBIN_LOG: string;}
export class BobbinContainer extends Container { defaultPort = 8090; enableInternet = true; // Bobbin maintains an in-memory index rebuilt from Hydrant replay on every // restart, so we want to avoid sleeping where possible. Override // onActivityExpired() to keep the container alive indefinitely. sleepAfter = "24h";
onActivityExpired(): boolean { // Keep the container running; bobbin's in-memory index is expensive to rebuild. return true; }
onError(error: Error) { console.error("bobbin container error:", error); }}
const INDEX = `This is bobbin, Tangled's stateless XRPC API service: https://tangled.org/tangled.org/core/tree/master/bobbin`;
export default { async fetch(request: Request, env: Env): Promise<Response> { const url = new URL(request.url); if (url.pathname === "/" || url.pathname === "") { return new Response(INDEX, { headers: { "Content-Type": "text/plain" } }); }
const ip = request.headers.get("cf-connecting-ip") ?? "unknown"; const { success } = await env.RATE_LIMITER.limit({ key: ip }); if (!success) { return new Response( JSON.stringify({ error: "RateLimitExceeded", message: "too many requests, slow down", }), { status: 429, headers: { "Content-Type": "application/json", "Retry-After": "60", }, }, ); }
const container = env.BOBBIN.getByName("primary"); await container.startAndWaitForPorts({ startOptions: { envVars: { BOBBIN_HYDRANT_URL: env.BOBBIN_HYDRANT_URL, BOBBIN_SLINGSHOT_URL: env.BOBBIN_SLINGSHOT_URL, BOBBIN_LOG: env.BOBBIN_LOG, BOBBIN_LOG_FORMAT: "json", }, }, }); return container.fetch(request); },} satisfies ExportedHandler<Env>;