import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs';
import { HttpEvent, HttpOptions } from './types';
import { TransferState } from '@angular/core';
import { DataRequest, DataResult } from '@bootkit/angular/data';
import * as i0 from "@angular/core";
export declare class HttpService {
    private _http;
    private transferState;
    private platformId;
    private _eventsSubject;
    private _baseUrl?;
    events: Observable<HttpEvent>;
    defaultHeaders?: HttpHeaders;
    constructor(_http: HttpClient, transferState: TransferState, platformId: object, baseUrl?: string);
    get<T>(url: string, options?: HttpOptions): Observable<T>;
    private _handleTransferState;
    getPagable<T>(url: string, request: DataRequest, options?: HttpOptions): Observable<DataResult<T>>;
    post<T>(url: string, body: any, options?: HttpOptions): Observable<T>;
    put<T>(url: string, body: any, options?: HttpOptions): Observable<T>;
    delete<T>(url: string, options?: HttpOptions): Observable<T>;
    private tap;
    private makeUrl;
    private makeHttpClientOptions;
    private makeBody;
    private processBodyFields;
    private mapDataRequesToQueryObject;
    static ɵfac: i0.ɵɵFactoryDeclaration<HttpService, [null, null, null, { optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HttpService>;
}