interface RequestConfig {
    headers?: Record<string, string>;
    timeout?: number;
    responseType?: XMLHttpRequestResponseType;
}
export interface ApiResponse {
    meta: {
        requestId: string;
        httpStatus: number;
        errorCode?: string;
        message?: string;
    };
    result: Record<string, any>;
}
/**
 * API utility class for making HTTP requests using XMLHttpRequest
 */
export declare class API {
    baseUrl: any;
    defaultHeaders: Record<string, any>;
    defaultTimeout: number;
    useCookie: boolean;
    sessionKey: string | undefined;
    constructor(payload?: {
        baseUrl?: string;
        defaultHeaders?: Record<string, string>;
        defaultTimeout?: number;
        useCookie?: boolean;
        sessionKey?: string;
    });
    setUseCookie(value: boolean): void;
    get(endpoint: string, config?: RequestConfig): Promise<ApiResponse>;
    post(endpoint: string, payload?: Record<string, any>, config?: RequestConfig): Promise<ApiResponse>;
    put(endpoint: string, payload?: Record<string, any>, config?: RequestConfig): Promise<ApiResponse>;
    delete(endpoint: string, payload?: Record<string, any>, config?: RequestConfig): Promise<ApiResponse>;
    patch(endpoint: string, payload?: Record<string, any>, config?: RequestConfig): Promise<ApiResponse>;
    request(method: string, endpoint: string, data?: any, config?: RequestConfig): Promise<ApiResponse>;
    /**
     * Build the full URL by combining baseUrl and endpoint
     */
    buildUrl(endpoint: string): string;
    /**
     * Prepare data by response type
     */
    getResponseData(xhr: XMLHttpRequest, headers: Record<string, any>): ApiResponse;
}
export declare const CheckoutAPI: API;
export declare const CardAPI: API;
export {};