Save document to AWS S3 in React DOCX Editor

23 Jul 20267 minutes to read

To save a document to AWS S3, follow the steps below.

Step 1: Create a simple React Document Editor (Document Editor) sample in React.

Follow the instructions provided in this link to create a simple Document Editor sample in React. This will give you a basic setup of the Document Editor component.

Step 2: Modify the DocumentEditorController.cs File in the Web Service Project

1. Create a web service project in .NET Core 3.0 or above. You can refer to this link for instructions on how to create a web service project.

2. Open the DocumentEditorController.cs file in your web service project.

3. Import the required namespaces at the top of the file:

using System.IO;
using Amazon;
using Amazon.S3;
using Amazon.S3.Model;

1. Add the following private fields and constructor parameters to the DocumentEditorController class. In the constructor, assign the values from the configuration to the corresponding fields.

private IConfiguration _configuration;
public readonly string _accessKey;
public readonly string _secretKey;
public readonly string _bucketName;

public DocumentEditorController(IWebHostEnvironment hostingEnvironment, IMemoryCache cache, IConfiguration configuration)
{
  _hostingEnvironment = hostingEnvironment;
  _cache = cache;
  _configuration = configuration;
  _accessKey = _configuration.GetValue<string>("AccessKey");
  _secretKey = _configuration.GetValue<string>("SecretKey");
  _bucketName = _configuration.GetValue<string>("BucketName");
}

1. Create the SaveToS3() method to save the document to AWS S3 bucket

[AcceptVerbs("Post")]
[HttpPost]
[EnableCors("AllowAllOrigins")]
[Route("SaveToS3")]
//Post action to save the document to AWS S3

public void SaveToS3(IFormCollection data)
{
  if (data.Files.Count == 0)
    return;
  RegionEndpoint bucketRegion = RegionEndpoint.USEast1;
  // Configure the AWS SDK with your access credentials and other settings
  var s3Client = new AmazonS3Client(_accessKey, _secretKey, bucketRegion);
  string bucketName = _bucketName;
  IFormFile file = data.Files[0];
  string documentName = this.GetValue(data, "documentName");
  string result = Path.GetFileNameWithoutExtension(documentName);
  Stream stream = new MemoryStream();
  file.CopyTo(stream);
  var request = new PutObjectRequest
  {
    BucketName = bucketName,
    Key = result + "_downloaded.docx",
    InputStream = stream,
  };
  // Upload the document to AWS S3
  var response = s3Client.PutObjectAsync(request).Result;
}

private string GetValue(IFormCollection data, string key)
{
    if (data.ContainsKey(key))
    {
        string[] values = data[key];
        if (values.Length > 0)
        {
            return values[0];
        }
    }
    return "";
}

1. Open the appsettings.json file in your web service project. Add the following lines below the existing "AllowedHosts" configuration.

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "AccessKey": "Your Access Key from AWS S3",
  "SecretKey": "Your Secret Key from AWS S3",
  "BucketName": "Your Bucket name from AWS S3"
}

NOTE

Replace Your Access Key from AWS S3, Your Secret Key from AWS S3, and Your Bucket name from AWS S3 with your actual AWS access key, secret key, and bucket name.

Step 3: Modify the index file in the Document Editor sample

On the client side, export the document to a blob using saveAsBlob and send it to the server side for saving in an AWS S3 Bucket.

import * as ReactDOM from 'react-dom';
import * as React from 'react';
import {
    DocumentEditorContainerComponent, Toolbar
} from '@syncfusion/ej2-react-documenteditor';

DocumentEditorContainerComponent.Inject(Toolbar);
function App() {
    let container: DocumentEditorContainerComponent;
    async function save(): Promise<void> {
    container.documentEditor.saveAsBlob('Docx').then((blob: Blob) => {
        let exportedDocument = blob;
        //Now, save the document where ever you want.
        let formData: FormData = new FormData();
        formData.append('documentName', container.documentEditor.documentName);
        formData.append('data', exportedDocument);
        let req = new XMLHttpRequest();
        // Replace your running Url here
        req.open(
            'POST',
            'http://localhost:62870/api/documenteditor/SaveToS3',
            true
        );
        req.onreadystatechange = () => {
            if (req.readyState === 4) {
                if (req.status === 200 || req.status === 304) {
                    console.log('Saved successfully');
                }
            }
        };
        req.send(formData);
    });
}
    return (
        <div>
            <button onClick={save}>Save Document</button>
            <DocumentEditorContainerComponent id="container" ref={(scope) => { container = scope; }}
                height={'590px'}
                serviceUrl="http://localhost:62870/api/documenteditor/"
                enableToolbar={true}
            />
        </div>
    );
}
export default App;
ReactDOM.render(<App />, document.getElementById('sample'));

NOTE

The AWSSDK.S3 NuGet package must be installed in your application to use the previous code example.