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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | 44x 52x 52x 51x 51x 44x 48x 48x 48x | import { Application } from 'express';
import { ListenOptions } from 'net';
import http from 'http';
export const listenPromise = (
serverLike: http.Server | Application,
listenOptions: ListenOptions = {}
): Promise<http.Server> =>
new Promise((resolve, reject) => {
// express 5's `app.listen` forwards bind errors to the listen callback (error-first),
// whereas raw http.Server.listen signals them via the 'error' event — handle both so a
// failed bind (e.g. EADDRINUSE) rejects instead of resolving with an unbound server.
const server = serverLike.listen(listenOptions, (error?: Error) =>
error ? reject(error) : resolve(server)
) as http.Server;
server.on('error', reject);
});
export const serverClosePromise = (server: http.Server): Promise<void> =>
new Promise((resolve, reject) => {
server.once('close', resolve);
server.close((error) => (error ? reject(error) : null));
});
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