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index.js
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index.js
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import http from 'node:http';
export default function waitForLocalhost({port, path, useGet, statusCodes = [200]} = {}) {
return new Promise(resolve => {
const retry = () => {
setTimeout(main, 200);
};
const method = useGet ? 'GET' : 'HEAD';
const doRequest = (ipVersion, next) => {
const request = http.request({method, port, path, family: ipVersion}, response => {
if (statusCodes.includes(response.statusCode)) {
resolve({ipVersion});
return;
}
next();
});
request.on('error', next);
request.end();
};
const main = () => {
doRequest(4,
() => doRequest(6,
() => retry(),
),
);
};
main();
});
}