email-amazon/email-worker-nodejs/health.ts

49 lines
1.1 KiB
TypeScript

/**
* Health check HTTP server
*
* Provides a simple /health endpoint for Docker healthcheck
* and monitoring. Returns domain list and feature flags.
*/
import { createServer, type Server } from 'node:http';
import { log } from './logger.js';
export function startHealthServer(
port: number,
domains: string[],
getStats?: () => any,
): Server {
const server = createServer((_req, res) => {
const stats = getStats?.() ?? {};
const payload = {
status: 'healthy',
worker: 'unified-email-worker-ts',
version: '2.0.0',
domains,
domainCount: domains.length,
features: {
bounce_handling: true,
ooo_replies: true,
forwarding: true,
blocklist: true,
prometheus_metrics: true,
lmtp: false,
legacy_smtp_forward: false,
},
stats,
uptime: process.uptime(),
timestamp: new Date().toISOString(),
};
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(payload, null, 2));
});
server.listen(port, () => {
log(`Health check on port ${port}`);
});
return server;
}