import { binding } from "../internal";
/**
 * Types of an authentication provider.
 */
export declare enum ProviderType {
    AnonUser = "anon-user",
    ApiKey = "api-key",
    LocalUserPass = "local-userpass",
    CustomFunction = "custom-function",
    CustomToken = "custom-token",
    OAuth2Google = "oauth2-google",
    OAuth2Facebook = "oauth2-facebook",
    OAuth2Apple = "oauth2-apple"
}
export declare function isProviderType(arg: string): arg is ProviderType;
export declare class Credentials {
    /** @internal */
    internal: binding.AppCredentials;
    /** @internal */
    private constructor();
    /**
     * Creates credentials for an anonymous user. These can only be used once - using them a second
     * time will result in a different user being logged in. If you need to get a user that has already logged
     * in with the Anonymous credentials, use {@link App.currentUser} or {@link App.allUsers}.
     * @param reuse - Reuse any existing anonymous user already logged in.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://docs.mongodb.com/realm/authentication/anonymous/
     */
    static anonymous(reuse?: boolean): Credentials;
    /**
     * Creates credentials based on a login with an email address and a password.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/email-password/
     */
    static emailPassword(credentials: {
        email: string;
        password: string;
    }): Credentials;
    static emailPassword(email: string, password: string): Credentials;
    /**
     * Creates credentials from an API key.
     * @param key - A string identifying the API key.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/api-key/
     */
    static apiKey(key: string): Credentials;
    /**
     * Creates credentials based on an Apple login.
     * @param token - An Apple authentication token, obtained by logging into Apple.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/apple/
     */
    static apple(token: string): Credentials;
    /**
     * Creates credentials based on a Facebook login.
     * @param token - A Facebook authentication token, obtained by logging into Facebook.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/facebook/
     */
    static facebook(token: string): Credentials;
    /**
     * Creates credentials based on a Google login.
     * @param authObject - An object with either an `authCode` or `idToken` property.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/google/
     */
    static google(authObject: {
        authCode: string;
    } | {
        idToken: string;
    }): Credentials;
    /**
     * Creates credentials with a JSON Web Token (JWT) provider and user identifier.
     * @param token - A string identifying the user. Usually an identity token or a username.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/custom-jwt/
     */
    static jwt(token: string): Credentials;
    /**
     * Creates credentials with an Atlas App Services function and user identifier.
     * @param payload - An object identifying the user. Usually an identity token or a username.
     * @returns An instance of `Credentials` that can be used in {@link App.logIn}.
     * @see https://www.mongodb.com/docs/atlas/app-services/authentication/custom-function/
     */
    static function(payload: object): Credentials;
}