/**
 * The MIT License (MIT)
 * Copyright (c) Taketoshi Aono
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * @fileoverview
 * @author Taketoshi Aono
 */
import { StateHandler, Advices } from '@rxx/core';
import { Observable, Subscription, ConnectableObservable } from 'rxjs';
import { HttpConfig, Fetch } from './types';
/**
 * Http request sender.
 */
export declare class HttpHandler extends StateHandler {
    static displayName: string;
    private static _maxHistoryLength;
    static maxHistoryLength: number;
    static readonly maxHistoryLenght: number;
    private history;
    constructor(a?: Advices);
    clone(): HttpHandler;
    /**
     * Wait for request from observables.
     * @override
     * @param request Observable that send request.
     */
    subscribe(props: {
        http: Observable<{
            type: string;
            request: HttpConfig;
        } | {
            type: string;
            request: HttpConfig;
        }[]> | {
            [key: string]: Observable<HttpConfig> | ConnectableObservable<HttpConfig>;
        };
    }): Subscription;
    /**
     * @inheritDoc
     */
    push(key: string, args?: any): Promise<any>;
    private handleUploadResonse;
    private notifyUploading;
    private notifyResponse;
    private handleResponse;
    private processHeaders;
    protected getFetcher(): Fetch;
    /**
     * Send GET request.
     * @data url Target url.
     * @data data GET parameters.
     * @returns Promise that return response.
     */
    private get;
    /**
     * Send POST request.
     * @data url Target url.
     * @data data POST body.
     * @returns Promise that return response.
     */
    private post;
    /**
     * Send PUT request.
     * @data url Target url.
     * @data data PUT body.
     * @returns Promise that return response.
     */
    private put;
    /**
     * Send PATCH request.
     * @data url Target url.
     * @data data PUT body.
     * @returns Promise that return response.
     */
    private patch;
    /**
     * Send DELETE request.
     * @data url Target url.
     * @data data PUT body.
     * @returns Promise that return response.
     */
    private delete;
    private upload;
    /**
     * Get proper response from fetch response body.
     * @param responseType The type of response. ex. ARRAY_BUFFER, BLOB, etc...
     * @param res Http response.
     * @returns
     */
    private getResponse;
    private getResponseTypeFromHeader;
}