1016780: Need to include new UG section on how to deploy spreadsheet server to AWS Lambda

Document-Processing-toc.html

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 									<li><a href="/document-processing/excel/spreadsheet/react/server-deployment/spreadsheet-server-docker-image-overview">Spreadsheet Server Docker Overview</a></li>
 									<li><a href="/document-processing/excel/spreadsheet/react/server-deployment/deploy-spreadsheet-docker-to-azure-using-azure-cli">Deploy Spreadsheet Docker to Azure App Service using Azure CLI</a></li>
 									<li><a href="/document-processing/excel/spreadsheet/react/server-deployment/publish-spreadsheet-server-to-azure-using-visual-studio">Publish Spreadsheet Server to Azure App Service using Visual Studio</a></li>
+									<li><a href="/document-processing/excel/spreadsheet/react/server-deployment/publish-spreadsheet-server-to-aws-lamda">Publish Spreadsheet Server to AWS Lambda</a></li>
 								</ul>
 							</li>
 							<li><a href="/document-processing/excel/spreadsheet/react/worksheet">Worksheet</a></li>

Document-Processing/Excel/Spreadsheet/React/server-deployment/publish-spreadsheet-server-to-aws-lamda.md

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+---
+layout: post
+title: Deploy Spreadsheet Server to AWS Lambda
+description: Learn how to deploy the Syncfusion Spreadsheet Server to AWS Lamda
+control: How to deploy eploy the Syncfusion Spreadsheet Server to AWS Lamda
+platform: document-processing
+documentation: ug
+---
+
+# Publish Spreadsheet Server to AWS Lambda Visual Studio
+
+## Prerequisites
+
+* [`AWS account`](https://aws.amazon.com/lambda/) with `IAM credentials`
+* The Spreadsheet [`Web API`](https://github.com/SyncfusionExamples/EJ2-Spreadsheet-WebServices/tree/main/WebAPI) project (Check out our detailed [`blog`](https://www.syncfusion.com/blogs/post/host-spreadsheet-open-and-save-services) to set up the web service locally).
+
+## Publish to AWS Lambda Service
+**Step 1:** Server-Side changes
+
+* Opening the file:
+The client converts the Excel file to base64 and sends it to the hosted Open endpoint - then simply loads the response into the Syncfusion React Spreadsheet. The AWS Lambda backend decodes the file, processes it with Workbook.Open, and returns spreadsheet-ready JSON for instant rendering on the frontend. You can refer to this [documentation](https://help.syncfusion.com/document-processing/excel/spreadsheet/react/open-excel-files#open-excel-files-with-aws-lambda) to know about the opening the file with AWS Lambda service.
+
+* Saving the file:
+The client converts the spreadsheet to JSON using the [saveAsJson](https://helpej2.syncfusion.com/react/documentation/api/spreadsheet/#saveasjson) method and sends it to AWS Lambda via fetch. It then decodes the base64 Excel response and creates a downloadable Excel file using a Blob. Receive the spreadsheet JSON in your Lambda function, convert it to an Excel file using Workbook.Save, and return it as a base64 string for secure client-side download. You can refer to this [documentation](https://help.syncfusion.com/document-processing/excel/spreadsheet/react/save-excel-files#save-excel-files-with-aws-lambda) to know about the saving the file with AWS Lambda service.
+
+
+**Step 2:** Deploy ASP.NET Core Spreadsheet Web API Service to AWS Lambda
+
+* Open `WebAPI project → Extensions > Manage Extensions → install AWS Toolkit with Amazon Q`. Restart VS.
+* From Extensions menu, select `Getting Started → enable AWS Toolkit with IAM credentials`.
+* Install the NuGet package: `Amazon.Lambda.AspNetCoreServer.Hosting`.
+* In WebAPI.csproj, add:
+```csharp
+<AWSProjectType>Lambda</AWSProjectType>
+```
+* In program.cs, add:
+```csharp
+builder.Services.AddAWSLambdaHosting(LambdaEventSource.RestApi);
+```
+* In `Solution Explorer → right-click project → Publish to AWS Lambda`.
+* Then enter your AWS credentials, choose your existing Lambda function or create a new function, enter the Handler name that matches your project name, and upload.
+* Host your project by creating a REST API in AWS API Gateway.
+* Integrate your API with Lambda by editing the integration, selecting your region and function, enabling Lambda Proxy Integration, and saving.
+* Deploy your API by selecting the Deploy API option and creating a new stage name. The hosted URL can then be used for open and save fetch requests in your React Spreadsheet sample.