Azure Client-Side Binding

import React from 'react'; import FileManager, { Permissions } from 'devextreme-react/file-manager'; import CustomFileSystemProvider from 'devextreme/file_management/custom_provider'; import { LoadPanel } from 'devextreme-react/load-panel'; const endpointUrl = 'https://js.devexpress.com/Demos/Mvc/api/file-manager-azure-access'; const allowedFileExtensions = []; const loadPanelPosition = { of: '#file-manager' }; class App extends React.Component { constructor() { super(); this.state = { requests: [], loadPanelVisible: true, wrapperClassName: '' }; this.onRequestExecuted = this.onRequestExecuted.bind(this); gateway = new AzureGateway(endpointUrl, this.onRequestExecuted); azure = new AzureFileSystem(gateway); this.fileSystemProvider = new CustomFileSystemProvider({ getItems, createDirectory, renameItem, deleteItem, copyItem, moveItem, uploadFileChunk, downloadItems }); this.checkAzureStatus(); } render() { return ( <div id="wrapper" className={this.state.wrapperClassName}> <LoadPanel visible={this.state.loadPanelVisible} position={loadPanelPosition} /> <div id="widget-area"> <FileManager id="file-manager" fileSystemProvider={this.fileSystemProvider} allowedFileExtensions={allowedFileExtensions}> {/* uncomment the code below to enable file/directory management */} <Permissions create={true} copy={true} move={true} delete={true} rename={true} upload={true} download={true}> </Permissions> </FileManager> <div id="request-panel"> { this.state.requests.map((r, i) => { return <div key={i} className="request-info"> <div className="parameter-info"> <div className="parameter-name">Method:</div> <div className="parameter-value dx-theme-accent-as-text-color">{r.method}</div> </div> <div className="parameter-info"> <div className="parameter-name">Url path:</div> <div className="parameter-value dx-theme-accent-as-text-color">{r.urlPath}</div> </div> <div className="parameter-info"> <div className="parameter-name">Query string:</div> <div className="parameter-value dx-theme-accent-as-text-color">{r.queryString}</div> </div> <br /> </div>; }) } </div> </div> <div id="message-box"> To run the demo locally, specify your Azure storage account name, access key and container name in the web.config file. Refer to the <a href="https://js.devexpress.com/Demos/WidgetsGallery/Demo/FileManager/AzureClientBinding/React/Light/" target="_blank" rel="noopener noreferrer"> https://js.devexpress.com/Demos/WidgetsGallery/Demo/FileManager/AzureClientBinding/React/Light/</a> to see the demo online. </div> </div> ); } checkAzureStatus() { fetch('https://js.devexpress.com/Demos/Mvc/api/file-manager-azure-status?widgetType=fileManager') .then(response => response.json()) .then(result => { const className = result.active ? 'show-widget' : 'show-message'; this.setState({ wrapperClassName: className, loadPanelVisible: false }); }); } onRequestExecuted({ method, urlPath, queryString }) { const request = { method, urlPath, queryString }; this.setState({ requests: [request, ...this.state.requests] }); } } function getItems(parentDirectory) { return azure.getItems(parentDirectory.path); } function createDirectory(parentDirectory, name) { return azure.createDirectory(parentDirectory.path, name); } function renameItem(item, name) { return item.isDirectory ? azure.renameDirectory(item.path, name) : azure.renameFile(item.path, name); } function deleteItem(item) { return item.isDirectory ? azure.deleteDirectory(item.path) : azure.deleteFile(item.path); } function copyItem(item, destinationDirectory) { const destinationPath = destinationDirectory.path ? `${destinationDirectory.path}/${item.name}` : item.name; return item.isDirectory ? azure.copyDirectory(item.path, destinationPath) : azure.copyFile(item.path, destinationPath); } function moveItem(item, destinationDirectory) { const destinationPath = destinationDirectory.path ? `${destinationDirectory.path}/${item.name}` : item.name; return item.isDirectory ? azure.moveDirectory(item.path, destinationPath) : azure.moveFile(item.path, destinationPath); } function uploadFileChunk(fileData, uploadInfo, destinationDirectory) { let promise = null; if(uploadInfo.chunkIndex === 0) { const filePath = destinationDirectory.path ? `${destinationDirectory.path}/${fileData.name}` : fileData.name; promise = gateway.getUploadAccessUrl(filePath).done(accessUrl => { uploadInfo.customData.accessUrl = accessUrl; }); } else { promise = Promise.resolve(); } promise = promise.then(() => gateway.putBlock(uploadInfo.customData.accessUrl, uploadInfo.chunkIndex, uploadInfo.chunkBlob)); if(uploadInfo.chunkIndex === uploadInfo.chunkCount - 1) { promise = promise.then(() => gateway.putBlockList(uploadInfo.customData.accessUrl, uploadInfo.chunkCount)); } return promise; } function downloadItems(items) { azure.downloadFile(items[0].path); } let gateway = null; let azure = null; export default App;