server.ts

importtype{RequestListener}from"node:http";

importtype{
AppLoadContext,
ServerBuild,
UNSAFE_MiddlewareEnabled,
unstable_InitialContext,
}from"react-router";
import{createRequestHandler}from"react-router";
importtype{ClientAddress}from"@mjackson/node-fetch-server";
import{createRequestListenerascreateRequestListener_}from"@mjackson/node-fetch-server";

typeMaybePromise<T>=T|Promise<T>;

exportinterfaceRequestListenerOptions{
build: ServerBuild|(()=>ServerBuild|Promise<ServerBuild>);
getLoadContext?: (
request: Request,
client: ClientAddress
)=>UNSAFE_MiddlewareEnabledextendstrue
 ? MaybePromise<unstable_InitialContext>
 : MaybePromise<AppLoadContext>;
mode?: string;
}

/**
 * Creates a request listener that handles requests using Node's built-in HTTP server.
 *
 * @param options Options for creating a request listener.
 * @returns A request listener that can be used with `http.createServer`.
 */
exportfunctioncreateRequestListener(
options: RequestListenerOptions
): RequestListener{
lethandleRequest=createRequestHandler(options.build,options.mode);

returncreateRequestListener_(async(request,client)=>{
letloadContext=awaitoptions.getLoadContext?.(request,client);
returnhandleRequest(request,loadContext);
});
}