/// <reference types="node" />
type Method = 'GET' | 'DELETE' | 'POST' | 'PUT' | 'PATCH';
type Config = Omit<RequestConfig, 'method' | 'url' | 'body'>;
export declare class RequestError extends Error {
    constructor(message: string);
}
export interface RequestConfig extends RequestInit {
    method: Method;
    url: string;
    origin?: string;
}
/** 请求拦截器 */
export type RequestInterceptor = (config: RequestConfig) => RequestConfig | Promise<RequestConfig>;
/** 响应拦截器 */
export type ResponseInterceptor<T = unknown> = (result: Result<T>) => Result | Promise<Result>;
/** 结果集 */
export interface Result<T = unknown> {
    data: T;
    /** 请求配置项 */
    config: RequestConfig;
    /** 响应状态码 */
    status: number;
    /** 状态码消息 */
    statusText: string;
    /** 请求头 */
    headers: Headers;
}
export declare class Request {
    private requestInterceptors;
    private responseInterceptors;
    constructor();
    /** 添加请求拦截器 */
    useRequestInterceptor(interceptor: RequestInterceptor): void;
    /** 添加响应拦截器 */
    useResponseInterceptor<T>(interceptor: ResponseInterceptor<T>): void;
    basis<T>(config: RequestConfig): Promise<Result<T>>;
    get<T>(url: string, params?: object, config?: Config): Promise<Result<T>>;
    delete<T>(url: string, params?: object, config?: Config): Promise<Result<T>>;
    post<T>(url: string, params?: object, config?: Config): Promise<Result<T>>;
    put<T>(url: string, params?: object, config?: Config): Promise<Result<T>>;
    patch<T>(url: string, params?: object, config?: Config): Promise<Result<T>>;
}
export {};