import { Credentials, NotRequestKey, Strategy, Request, StrategyException } from './common.interface';
/**
 * This abstract class is implement general methods.
 */
export declare abstract class BaseAbstractStrategy<K extends string, T = unknown, R = T, C = Credentials> implements Strategy<T, R, C> {
    private readonly key;
    /**
     * oauth callback uri, oauth system will redirect this uri with code
     */
    private readonly redirect_uri;
    constructor(key: NotRequestKey<K>, 
    /**
     * oauth callback uri, oauth system will redirect this uri with code
     */
    redirect_uri: string);
    /**
     * this method will be called when strategy have exception.
     */
    protected throw({ statusCode, message, }: StrategyException): never;
    getCode(request: Request): string;
    isRedirectURL(path: string): boolean;
    saveIdentity(request: Request, identity: R): void;
    abstract readonly OAUTH2_URI: string;
    abstract authorize(code: string): Promise<C>;
    abstract getIdentity(credentials: C): Promise<T>;
    abstract validate(identity: T, credentials: C): boolean;
    abstract transform(identity: T): R;
}