import { OAuthConfig } from './types/OAuthConfig';
import { Token } from './types';
/**
 * Returns URI to request authorization code with the given parameters.
 *
 * @param authorizationEndpoint string
 * @param clientId string
 * @param redirectUri string
 * @param queryParams {} optional
 * @returns {string}
 */
declare function createAuthCodeRequestUri(authorizationEndpoint: string, clientId: string, redirectUri: string, queryParams?: {}): string;
/**
 * Makes a request to the `tokenInfoUrl` to validate the given `accessToken`.
 * Resolves with an object containing access token information in case of success.
 * Otherwise, rejects with an error message.
 *
 * @param tokenInfoUrl
 * @param accessToken
 * @returns {Promise<Token>}
 */
declare function getTokenInfo(tokenInfoUrl: string, accessToken: string): Promise<Token>;
/**
 * Helper function to get an access token for the specified scopes.
 * Reads client and user credentials (to build a valid authorization header) and makes a
 * request to the `accessTokenEndpoint`.
 *
 * Resolves with object containing property `accessToken` with the access token
 * (in case of success). Otherwise, rejects with error message.
 *
 * Currently supports the following OAuth flows (specified by the `grantType` property):
 *  - Resource Owner Password Credentials Grant (PASSWORD_CREDENTIALS_GRANT)
 *  - Authorization Code Grant (AUTHORIZATION_CODE_GRANT)
 *  - Refresh Token Grant (REFRESH_TOKEN_GRANT)
 *
 *  The `options` object can have the following properties:
 *  - credentialsDir string
 *  - grantType string
 *  - accessTokenEndpoint string
 *  - scopes string[] optional
 *  - queryParams {} optional
 *  - redirect_uri string optional (required with AUTHORIZATION_CODE_GRANT)
 *  - code string optional (required with AUTHORIZATION_CODE_GRANT)
 *  - refreshToken string optional (required with REFRESH_TOKEN_GRANT)
 *
 * @param options
 * @returns {Promise<T>}
 */
declare function getAccessToken(options: OAuthConfig): Promise<Token>;
export { getTokenInfo, getAccessToken, createAuthCodeRequestUri };