Something went wrong. Try again.
[READ-ONLY] Mirror of https://github.com/openstatusHQ/openstatus. 🫖 Status page with uptime monitoring & API monitoring as code 🫖 openstatus.dev
bun drizzle-orm monitoring monitoring-as-code nextjs observability on-call open-source shadcn-ui status-page statuspage synthetic-monitoring tinybird turso uptime uptime-checker uptime-monitor
Something went wrong. Try again.
2.3 kB · 68 lines
TypeScript
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869import { parseCfRay } from "../parser/cf-ray";import { regions as iataRegions } from "../regions/cloudflare";import { regions as vercelRegions } from "../regions/vercel";import type { CdnProvider } from "./detect-cdn";import { getHeader } from "./get-header";
export interface EdgePop { /** PoP/colo code, e.g. "FRA" or "fra1" */ pop: string | null; /** best-effort city name resolved from the IATA code */ location: string | null;}
// the cloudflare map is keyed by IATA airport codes, so it doubles as a// generic IATA → city lookup for other vendors' PoP codesfunction lookupIata(code: string): string | null { return iataRegions[code.toUpperCase()]?.location ?? null;}
export function extractEdgePop( headers: Record<string, string>, provider: CdnProvider | null,): EdgePop { switch (provider) { case "cloudflare": { const ray = getHeader(headers, "cf-ray"); if (!ray) break; const parsed = parseCfRay(ray); if (parsed.status === "success") { return { pop: parsed.data.code, location: parsed.data.location }; } const code = ray.match(/\b([A-Z]{3})\b/)?.[1]; if (code) return { pop: code, location: lookupIata(code) }; break; } case "cloudfront": { // e.g. "FRA56-P5" — leading 3 letters are the IATA code const pop = getHeader(headers, "x-amz-cf-pop"); const code = pop?.match(/^([A-Z]{3})/)?.[1]; if (pop && code) return { pop, location: lookupIata(code) }; break; } case "fastly": { // e.g. "cache-fra-etou8220141-FRA" — trailing segment is the IATA code const servedBy = getHeader(headers, "x-served-by"); const code = servedBy?.match(/-([A-Z]{3})$/)?.[1]; if (code) return { pop: code, location: lookupIata(code) }; break; } case "vercel": { // e.g. "fra1::iad1::82mqm-..." — first segment is the serving edge const id = getHeader(headers, "x-vercel-id"); const pop = id?.match(/^([a-z]{3}\d*)/)?.[1]; if (pop) { const known = vercelRegions[pop]; return { pop, location: known?.location ?? lookupIata(pop.slice(0, 3)), }; } break; } default: break; }
return { pop: null, location: null };}