import { FirmaConfig } from "./FirmaConfig";
export declare class IpfsService {
    private _config;
    private _ipfsNodeClient;
    private _protocol;
    constructor(_config: FirmaConfig);
    addJson(jsonData: string): Promise<string>;
    addBuffer(buffer: ArrayBuffer): Promise<string>;
    addFile(fileUrl: string): Promise<string>;
    getFile(hash: string): Promise<string>;
    getURLFromHash(hash: string): string;
}