import { HttpClient, HttpHeaders, HttpResponse } from '@angular/common/http';
import { Observable } from 'rxjs';
import { LoaderService } from '../loader/loader.service';
import { Configurations } from '../../../Configuration';
export declare enum MessageServiceState {
    Running = 0,
    Success = 1,
    Failed = 2,
    Error = 3
}
export declare class MessageService {
    private http;
    private loaderService;
    config: Configurations;
    constructor(http: HttpClient, loaderService: LoaderService, config?: Configurations);
    protected isJson(item?: any): boolean;
    protected getData(method?: string, params?: any, contentType?: string): any;
    getDefaultHeaders(contentType?: string): HttpHeaders;
    protected getHttpOptions(requestData: any, contentType?: string, responseType?: string, ignoreLoader?: boolean, isProgress?: boolean): any;
    protected onBegin(ignoreLoader?: boolean): void;
    protected onEnd(ignoreLoader?: boolean): void;
    text(requestUrl: string, params?: any, contentType?: string, responseType?: string, handleNoError?: boolean): Observable<any>;
    query(requestUrl: string, params?: any, contentType?: string, responseType?: string, handleNoError?: boolean): Observable<any>;
    file(requestUrl: string, params?: any, contentType?: string, responseType?: string, handleNoError?: boolean, isProgress?: boolean): Observable<any>;
    put(requestUrl: string, body?: any, params?: any, contentType?: string, handleNoError?: boolean): Observable<any>;
    post(requestUrl: string, body?: any, params?: any, contentType?: string, handleNoError?: boolean): Observable<any>;
    postResponse(requestUrl: string, body?: any, params?: any, contentType?: string, handleNoError?: boolean): Observable<HttpResponse<any>>;
    postResponseBlob(requestUrl: string, body?: any, params?: any, contentType?: string, handleNoError?: boolean): Observable<HttpResponse<any>>;
    patch(requestUrl: string, body?: any, params?: any, contentType?: string, ignoreLoader?: boolean, handleNoError?: boolean): Observable<any>;
    delete(requestUrl: string, params?: any, contentType?: string, handleNoError?: boolean): Observable<any>;
    deleteWithBody(requestUrl: string, body?: any, params?: any, contentType?: string): Observable<HttpResponse<any>>;
    /**
     * Handle Http operation that failed.
     * Let the app continue.
     * @param operation - name of the operation that failed
     * @param result - optional value to return as the observable result
     */
    private handleError;
    /** Log a HeroService message with the NotificationService */
    private log;
}