@verdaccio/types/build/plugins/middleware.d.ts

import { IBasicAuth } from './auth';
import { IPlugin } from './commons';
import { IStorageManager } from './storage';
export interface IPluginMiddleware<T> extends IPlugin<T> {
    register_middlewares(app: any, auth: IBasicAuth<T>, storage: IStorageManager<T>): void;
}