@nestjs/platform-fastify/interfaces/nest-fastify-listen-options.interface.d.ts

Run NestJS on Fastify: the HTTP adapter with Fastify's plugins, JSON schemas and serialization.

import type { FastifyListenOptions } from 'fastify';
/**
 * @publicApi
 */
export interface NestFastifyListenOptions extends FastifyListenOptions {
    /**
     * A file descriptor of a socket that is already bound, such as the one
     * systemd passes on socket activation. Not supported on Windows.
     * @see [server.listen(handle)](https://nodejs.org/api/net.html#serverlistenhandle-backlog-callback)
     */
    fd?: number;
}