/// <reference types="express" />
import * as express from 'express';
import { MiddlewareOptions, ExtendedRequest, PrecedenceFunction, PrecedenceErrorHandler, PrecedenceOptions } from './types';
/**
 * Returns a function (express middleware) that validates the scopes against the user scopes
 * attached to the request (for example by `handleOAuthRequestMiddleware`).
 * If the the requested scopes are not matched request is rejected (with 403 Forbidden).
 *
 * Usage:
 *  app.get('/path', requireScopesMiddleware['scopeA', 'scopeB'], (req, res) => { // Do route work })
 *
 * @param scopes - array of scopes that are needed to access the endpoint
 * @param precedenceOptions - This options let consumers define a way to over rule scope checking. The parameter is optional.
 *
 * @returns { function(any, any, any): undefined }
 */
declare function requireScopesMiddleware(scopes: string[], precedenceOptions?: PrecedenceOptions): (req: ExtendedRequest, res: express.Response, next: express.NextFunction) => void;
/**
 * Returns a function (middleware) to extract and validate an access token from a request.
 * Furthermore, it attaches the scopes granted by the token to the request for further usage.
 * If the token is not valid the request is rejected (with 401 Unauthorized).
 *
 * The options object can have the following properties:
 *  - publicEndpoints string[]
 *  - tokenInfoEndpoint string
 *
 * Usage:
 * app.use(handleOAuthRequestMiddleware(options))
 *
 * @param options
 * @returns express middleware
 */
declare function handleOAuthRequestMiddleware(options: MiddlewareOptions): (req: ExtendedRequest, res: express.Response, next: express.NextFunction) => void;
export { PrecedenceFunction, PrecedenceErrorHandler, PrecedenceOptions, requireScopesMiddleware, handleOAuthRequestMiddleware };