import type { IncomingMessage, ServerResponse } from 'node:http';
import type { SSRManifest } from 'astro';
export interface UserOptions {
    /**
     * Specifies the mode that the adapter builds to.
     *
     * - 'middleware' - Build to middleware, to be used within another Node.js server, such as Express.
     * - 'standalone' - Build to a standalone server. The server starts up just by running the built script.
     */
    mode: 'middleware' | 'standalone';
    /**
     * Disables HTML streaming. This is useful for example if there are constraints from your host.
     */
    experimentalDisableStreaming?: boolean;
    /**
     * If enabled, the adapter will save [static headers in the framework API file](https://docs.netlify.com/frameworks-api/#headers).
     *
     * Here the list of the headers that are added:
     * - The CSP header of the static pages is added when CSP support is enabled.
     */
    experimentalStaticHeaders?: boolean;
    /**
     * The host that should be used if the server needs to fetch the prerendered error page.
     * If not provided, this will default to the host of the server. This should be set if the server
     * should fetch prerendered error pages from a different host than the public URL of the server.
     * This is useful for example if the server is behind a reverse proxy or a load balancer, or if
     * static files are hosted on a different domain. Do not include a path in the URL: it will be ignored.
     */
    experimentalErrorPageHost?: string | URL;
}
export interface Options extends UserOptions {
    host: string | boolean;
    port: number;
    server: string;
    client: string;
    assets: string;
    trailingSlash?: SSRManifest['trailingSlash'];
    experimentalStaticHeaders: boolean;
}
export type RequestHandler = (...args: RequestHandlerParams) => void | Promise<void>;
type RequestHandlerParams = [
    req: IncomingMessage,
    res: ServerResponse,
    next?: (err?: unknown) => void,
    locals?: object
];
export {};