/**
* @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
*/
/**
* @module cloud-services/uploadgateway/uploadgateway
*/
import { FileUploader } from "./fileuploader.js";
import type { InitializedToken } from "../token/token.js";
/**
* UploadGateway abstracts file uploads to CKEditor Cloud Services.
*/
export declare class UploadGateway {
	/**
	* CKEditor Cloud Services access token.
	*/
	private readonly _token;
	/**
	* CKEditor Cloud Services API address.
	*/
	private readonly _apiAddress;
	/**
	* Creates `UploadGateway` instance.
	*
	* @param token Token used for authentication.
	* @param apiAddress API address.
	*/
	constructor(token: InitializedToken, apiAddress: string);
	/**
	* Creates a {@link module:cloud-services/uploadgateway/fileuploader~FileUploader} instance that wraps
	* file upload process. The file is being sent at a time when the
	* {@link module:cloud-services/uploadgateway/fileuploader~FileUploader#send} method is called.
	*
	* ```ts
	* const token = await Token.create( 'https://token-endpoint' );
	* new UploadGateway( token, 'https://example.org' )
	* 	.upload( 'FILE' )
	* 	.onProgress( ( data ) => console.log( data ) )
	* 	.send()
	* 	.then( ( response ) => console.log( response ) );
	* ```
	*
	* @param {Blob|String} fileOrData A blob object or a data string encoded with Base64.
	* @returns {module:cloud-services/uploadgateway/fileuploader~FileUploader} Returns `FileUploader` instance.
	*/
	upload(fileOrData: string | Blob): FileUploader;
}