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Gateway: env-configurable rate-limit skip prefixes for shared-NAT deployments #259

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Merged
kh0pper merged 1 commit into from
Jul 29, 2026
Merged

Gateway: env-configurable rate-limit skip prefixes for shared-NAT deployments #259

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11 changes: 9 additions & 2 deletions servers/gateway/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -325,15 +325,22 @@ app.use(cors({
credentials: true,
}));

// Rate limiting — general (skip for --no-auth since it's a local-only bridge)
// Rate limiting — general (skip for --no-auth since it's a local-only bridge).
// GATEWAY_RATE_LIMIT_SKIP_PREFIXES: comma-separated extra path prefixes exempted
// from the general limiter, for deployments where many clients share one NAT IP
// behind an already-allowlisted reverse proxy (per-IP buckets collapse to a
// single shared bucket there).
const rateLimitSkipPrefixes = (process.env.GATEWAY_RATE_LIMIT_SKIP_PREFIXES || "")
.split(",").map((s) => s.trim()).filter(Boolean);
if (!noAuth) {
app.use(rateLimit({
windowMs: 15 * 60 * 1000,
max: 200,
standardHeaders: true,
legacyHeaders: false,
message: { error: "Too many requests, please try again later" },
skip: (req) => req.path.startsWith("/dashboard") || req.path.startsWith("/api/meta-glasses/") || req.path.startsWith("/llm"),
skip: (req) => req.path.startsWith("/dashboard") || req.path.startsWith("/api/meta-glasses/") || req.path.startsWith("/llm")
|| rateLimitSkipPrefixes.some((p) => req.path.startsWith(p)),
}));
}

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