import constants from './constants';
export type AjaxServiceRequestRetryOptions = {
    attempts: number;
};
export type AjaxServiceRequestOptionsBase = {
    method: string;
    url: string;
    id?: string;
    headers?: Record<string, string>;
    data?: any;
    accept?: string;
    contentType?: string;
    credentials?: RequestCredentials;
    origin?: string;
    retry?: AjaxServiceRequestRetryOptions;
};
export type AjaxServiceResponse<T = any> = {
    status: number;
    headers: Record<string, string>;
    data: T;
};
export declare class AjaxServiceError extends Error {
    readonly response: AjaxServiceResponse;
    constructor(response: AjaxServiceResponse);
}
export declare function isAjaxServiceError(err: Error): err is AjaxServiceError;
export type RetryState = {
    err: Error & {
        status: number;
        response: AjaxServiceResponse;
    };
    attemptNumber: number;
    numOfAttempts: number;
};
export type RequestState = {
    cancel: () => Promise<AjaxServiceResponse>;
    retryState: RetryState;
    next: (req: AjaxServiceRequestOptionsBase) => Promise<AjaxServiceResponse>;
};
export type Interceptor = (req: AjaxServiceRequestOptionsBase, requestState: RequestState) => Promise<AjaxServiceResponse>;
export type ResponseState = {
    req: AjaxServiceRequestOptionsBase;
    res: AjaxServiceResponse;
};
export type ResponseListener = (responseState: ResponseState) => void | Promise<void>;
export type CancelState = {
    req: AjaxServiceRequestOptionsBase;
};
export type CancelListener = (cancelState: CancelState) => void;
export type AjaxServiceConfig = {
    onRequest: Interceptor;
    onResponse: ResponseListener;
    onCancel: CancelListener;
};
export type AjaxServiceRequestOptions = AjaxServiceRequestOptionsBase & {
    configs?: Partial<AjaxServiceConfig>[];
};
export type RequestInitWithUrl = RequestInit & {
    url: string;
    origin?: string;
};
export type AjaxService = {
    constants: typeof constants;
    get<T = any>(opts: Partial<AjaxServiceRequestOptions>): Promise<AjaxServiceResponse<T>>;
    post<T = any>(opts: Partial<AjaxServiceRequestOptions>): Promise<AjaxServiceResponse<T>>;
    delete(opts: Partial<AjaxServiceRequestOptions>): Promise<AjaxServiceResponse>;
    send<T>(opts: AjaxServiceRequestOptions): Promise<AjaxServiceResponse<T>>;
};
export type AjaxServiceInitializer = ((configs?: Partial<AjaxServiceConfig>[]) => AjaxService) & {
    constants: typeof constants;
};