30 lines
942 B
JavaScript
30 lines
942 B
JavaScript
import { resolveDns } from "../shared/dnsResolver.js";
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import { HEALTH_CHECK } from "./config.js";
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export async function probeUrlAlive(url) {
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if (!url) return false;
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let hostname;
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try { hostname = new URL(url).hostname; } catch { return false; }
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if (!await resolveDns(hostname, HEALTH_CHECK.dnsTimeoutMs)) return false;
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try {
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const res = await fetch(`${url}/api/health`, {
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signal: AbortSignal.timeout(HEALTH_CHECK.fetchTimeoutMs),
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});
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return res.ok;
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} catch {
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return false;
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}
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}
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export async function waitForHealth(url, cancelToken = { cancelled: false }) {
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const start = Date.now();
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while (Date.now() - start < HEALTH_CHECK.timeoutMs) {
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if (cancelToken.cancelled) throw new Error("cancelled");
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if (await probeUrlAlive(url)) return true;
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await new Promise((r) => setTimeout(r, HEALTH_CHECK.intervalMs));
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}
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throw new Error(`Health check timeout after ${HEALTH_CHECK.timeoutMs}ms`);
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}
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