import { HttpClient, HttpEvent, HttpHeaders, HttpParams, HttpProgressEvent, HttpResponse } from '@angular/common/http';
import { Observable } from 'rxjs';
import { MessageResource } from './interface/message-resource';
import * as i0 from "@angular/core";
export declare type Headers = HttpHeaders | {
    [header: string]: string | Array<string>;
};
export declare type Params = HttpParams | ObjectParams;
export declare type ResponseType = 'json' | 'hal';
export interface ObjectParams {
    [param: string]: string | Array<string>;
}
export declare enum ProgressType {
    UPLOAD = "upload",
    DOWNLOAD = "download"
}
export interface ProviderProgress {
    type: ProgressType;
    loaded: number;
    total?: number;
    progress?: number;
}
export declare abstract class AbstractResourceProvider {
    protected httpClient: HttpClient;
    protected constructor(httpClient: HttpClient);
    private static addLastSlash;
    private static removeFirstSlash;
    static sanitizeUrl(endpoint?: string, url?: string): string;
    /**
     * Combines two instances of {@link Params} type into one.
     * If a parameter is declared in both instances uses the value of the `highPriorityParams` in the result.
     * @param highPriorityParams parameters with the higher priority
     * @param lowPriorityParams parameters with the lower priority
     * @returns combination of botch parameters. Uses the value of the higher priority parameters if the keys are in conflict.
     */
    static combineParams(highPriorityParams: Params, lowPriorityParams: Params): HttpParams;
    /**
     * Converts {@link HttpParams} instance into a simple object.
     * @param params instance to convert
     * @returns simple object with keys and values from the input argument
     */
    static convertHttpParamsToObjectParams(params: HttpParams): ObjectParams;
    static getProgress(event: HttpProgressEvent): ProviderProgress;
    static processMessageResource(response: MessageResource | HttpResponse<MessageResource>): MessageResource;
    get$<T>(endpoint?: string, url?: string, params?: Params, headers?: Headers, responseType?: ResponseType): Observable<T>;
    getBlob$(endpoint?: string, url?: string, params?: Params, headers?: Headers): Observable<HttpEvent<Blob>>;
    post$<T>(endpoint?: string, url?: string, body?: object, params?: Params, headers?: Headers, responseType?: ResponseType): Observable<T>;
    postWithEvent$<T>(endpoint?: string, url?: string, body?: object, params?: Params, headers?: Headers, responseType?: ResponseType): Observable<HttpEvent<T>>;
    put$<T>(endpoint?: string, url?: string, body?: object, params?: Params, headers?: Headers, responseType?: ResponseType): Observable<T>;
    delete$<T>(endpoint?: string, url?: string, params?: Params, headers?: Headers, responseType?: ResponseType, body?: object): Observable<T>;
}
export declare class ResourceProvider extends AbstractResourceProvider {
    constructor(httpClient: HttpClient);
    static ɵfac: i0.ɵɵFactoryDeclaration<ResourceProvider, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ResourceProvider>;
}