Bernt
88 lines
1.9 KiB
JavaScript
88 lines
1.9 KiB
JavaScript
/**
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* LandveX Gateway — HTTP Proxy
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* Routes requests to backend services
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*/
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import http from 'http';
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export function proxyRequest(req, res, target) {
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const options = {
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hostname: target.host,
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port: target.port,
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path: req.url,
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method: req.method,
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headers: {
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...req.headers,
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host: `${target.host}:${target.port}`,
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},
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timeout: 30000,
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};
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const proxyReq = http.request(options, (proxyRes) => {
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res.writeHead(proxyRes.statusCode || 500, proxyRes.headers);
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proxyRes.pipe(res);
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});
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proxyReq.on('error', (err) => {
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console.error(`[PROXY ERROR] ${target.name}: ${err.message}`);
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res.statusCode = 502;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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error: 'Bad Gateway',
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service: target.name,
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message: err.message,
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}));
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});
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proxyReq.on('timeout', () => {
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proxyReq.destroy();
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res.statusCode = 504;
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res.setHeader('Content-Type', 'application/json');
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res.end(JSON.stringify({
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error: 'Gateway Timeout',
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service: target.name,
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message: 'Request timed out',
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}));
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});
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req.pipe(proxyReq);
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}
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export async function checkServiceHealth(service) {
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const start = Date.now();
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return new Promise((resolve) => {
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const req = http.request({
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hostname: service.host,
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port: service.port,
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path: service.healthPath,
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method: 'GET',
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timeout: 5000,
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}, (res) => {
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resolve({
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healthy: res.statusCode === 200,
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latency: Date.now() - start,
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});
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});
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req.on('error', (err) => {
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resolve({
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healthy: false,
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latency: Date.now() - start,
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error: err.message,
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});
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});
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req.on('timeout', () => {
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req.destroy();
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resolve({
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healthy: false,
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latency: Date.now() - start,
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error: 'Timeout',
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});
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});
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req.end();
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});
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}
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