45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
import { data } from "react-router";
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import type { Route } from "./+types/api.route";
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import { computeRoute } from "~/lib/brouter";
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import { checkRateLimit } from "~/lib/rate-limit";
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export async function action({ request }: Route.ActionArgs) {
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if (request.method !== "POST") {
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return data({ error: "Method not allowed" }, { status: 405 });
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}
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const body = await request.json();
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const { waypoints, profile, sessionId } = body as {
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waypoints: Array<{ lat: number; lon: number }>;
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profile?: string;
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sessionId?: string;
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};
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if (!waypoints || waypoints.length < 2) {
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return data({ error: "At least 2 waypoints are required" }, { status: 400 });
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}
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// Rate limit by session ID or IP
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const rateLimitKey = sessionId ?? request.headers.get("x-forwarded-for") ?? "unknown";
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const limit = checkRateLimit(`route:${rateLimitKey}`);
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if (!limit.allowed) {
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return data(
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{ error: "Rate limit exceeded" },
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{
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status: 429,
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headers: { "Retry-After": String(limit.retryAfterSeconds) },
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},
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);
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}
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try {
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const route = await computeRoute({ waypoints, profile });
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return data(route, {
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headers: { "X-RateLimit-Remaining": String(limit.remaining) },
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});
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} catch (e) {
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const message = e instanceof Error ? e.message : "Route computation failed";
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return data({ error: message }, { status: 502 });
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}
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}
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