import { IFintectureConfig } from './interfaces/ConfigInterface';
/**
 * Class responsible for performing authentication with Fintecture
 *
 * @export
 * @class Authentication
 */
export declare class Authentication {
    private axiosInstance;
    private appId;
    private appSecret;
    /**
     * Creates an instance of Authentication.
     *
     * @param {string} appId
     */
    constructor(config: IFintectureConfig);
    /**
     * The accesstoken API is used to exchange the code received
     * in the /authorize API for an access_token.
     *
     * @param {string} appSecret
     * @param {string} authCode (optional)
     * @returns {Promise<object>}
     */
    accessToken(authCode?: string, scopes?: string): Promise<object>;
    /**
     * The accesstoken API is used to exchange the code received
     * in the /authorize API for an access_token.
     *
     * @param {string} appSecret
     * @param {string} refreshToken
     * @returns {Promise<object>}
     */
    refreshToken(refreshToken: string): Promise<object>;
    /**
     * Private function that returns the data necessary to make an
     * access_token query in PIS and AIS context.
     *
     * @param {string} authCode (optional)
     * @returns {string}
     */
    private _getAccessTokenData;
    /**
     * Private function that returns the data necessary to make a
     * refresh_token query in AIS context.
     *
     * @param {string} refreshToken
     * @returns {string}
     */
    private _getRefreshTokenData;
    /**
     * Private function that creates an instance of authentication
     * axios. This instance of axios include all the common headers
     * params.
     *
     * @param {IFintectureConfig} config
     * @returns {axios}
     */
    private _getAxiosInstance;
    /**
     * Private function that calculates the client token in order to
     * include it in the axios instance header.
     *
     * @param {string} appSecret
     * @returns {string}
     */
    private _getClientToken;
    /**
     * Private function that throw a list of errors in the same error object.
     *
     * @param {string[]} parameters
     * @returns {Error}
     */
    private _trowErrors;
}