Create PowerPoint document in AWS Lambda

13 Sep 20246 minutes to read

Syncfusion PowerPoint is a .NET Core PowerPoint library used to create, read, edit and convert PowerPoint documents programmatically without Microsoft PowerPoint or interop dependencies. Using this library, you can create a PowerPoint document in AWS Lambda.

Steps to create PowerPoint document in AWS Lambda

Step 1: Create a new AWS Lambda project as follows.

Step 2: Select Blueprint as Empty Function and click Finish.

Step 3: Install the Syncfusion.Presentation.Net.Core NuGet package as a reference to your project from NuGet.org.

NOTE

Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, you also have to add “Syncfusion.Licensing” assembly reference and include a license key in your projects. Please refer to this link to know about registering Syncfusion license key in your application to use our components.

Step 4: Create a folder and copy the required data files and include the files to the project.

Step 5: Set the copy to output directory to Copy if newer to all the data files.

Step 6: Include the following namespaces in Function.cs file.

C#

using Syncfusion.Presentation;

step 7: Add the following code snippet in Function.cs to create a PowerPoint document in AWS Lambda.

C#

//Create a new instance of PowerPoint Presentation file.
using IPresentation pptxDoc = Presentation.Create();

//Add a new slide to file and apply background color.
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.TitleOnly);
//Specify the fill type and fill color for the slide background.
slide.Background.Fill.FillType = FillType.Solid;
slide.Background.Fill.SolidFill.Color = ColorObject.FromArgb(232, 241, 229);

//Add title content to the slide by accessing the title placeholder of the TitleOnly layout-slide.
IShape titleShape = slide.Shapes[0] as IShape;
titleShape.TextBody.AddParagraph("Company History").HorizontalAlignment = HorizontalAlignmentType.Center;

//Add description content to the slide by adding a new TextBox.
IShape descriptionShape = slide.AddTextBox(53.22, 141.73, 874.19, 77.70);
descriptionShape.TextBody.Text = "IMN Solutions PVT LTD is the software company, established in 1987, by George Milton. The company has been listed as the trusted partner for many high-profile organizations since 1988 and got awards for quality products from reputed organizations.";

//Add bullet points to the slide.
IShape bulletPointsShape = slide.AddTextBox(53.22, 270, 437.90, 116.32);
//Add a paragraph for a bullet point.
IParagraph firstPara = bulletPointsShape.TextBody.AddParagraph("The company acquired the MCY corporation for 20 billion dollars and became the top revenue maker for the year 2015.");
//Format how the bullets should be displayed.
firstPara.ListFormat.Type = ListType.Bulleted;
firstPara.LeftIndent = 35;
firstPara.FirstLineIndent = -35;
// Add another paragraph for the next bullet point.
IParagraph secondPara = bulletPointsShape.TextBody.AddParagraph("The company is participating in top open source projects in automation industry.");
//Format how the bullets should be displayed.
secondPara.ListFormat.Type = ListType.Bulleted;
secondPara.LeftIndent = 35;
secondPara.FirstLineIndent = -35;

//Get a picture as stream.
string filePath = Path.GetFullPath(@"Data/Image.jpg");
using FileStream pictureStream = new(filePath, FileMode.Open, FileAccess.Read);
//Add the picture to a slide by specifying its size and position.
slide.Shapes.AddPicture(pictureStream, 499.79, 238.59, 364.54, 192.16);

//Add an auto-shape to the slide.
IShape stampShape = slide.Shapes.AddShape(AutoShapeType.Explosion1, 48.93, 430.71, 104.13, 80.54);
//Format the auto-shape color by setting the fill type and text.
stampShape.Fill.FillType = FillType.None;
stampShape.TextBody.AddParagraph("IMN").HorizontalAlignment = HorizontalAlignmentType.Center;

//Save the PowerPoint Presentation.
MemoryStream pptxStream = new MemoryStream();
pptxDoc.Save(pptxStream);
return Convert.ToBase64String(pptxStream.ToArray());

Step 8: Right-click the project and select Publish to AWS Lambda.

Step 9: Create a new AWS profile in the Upload Lambda Function Window. After creating the profile, add a name for the Lambda function to publish. Then, click Next.

Step 10: In the Advanced Function Details window, specify the Role Name as based on AWS Managed policy. After selecting the role, click the Upload button to deploy your application.

Step 11: After deploying the application, you can see the published Lambda function in AWS console.

Step 12: Edit Memory size and Timeout as maximum in General configuration of the AWS Lambda function.

Steps to post the request to AWS Lambda

Step 1: Create a new console project.

step 2: Install the following Nuget packages in your application from Nuget.org.

• AWSSDK.Core
• AWSSDK.Lambda
• Newtonsoft.Json
  
  
  

Step 3: Include the following namespaces in Program.cs file.

C#

using Amazon;
using Amazon.Lambda;
using Amazon.Lambda.Model;
using Newtonsoft.Json;

Step 4: Add the following code snippet in Program.cs to invoke the published AWS Lambda function using the function name and access keys.

C#

//Create a new AmazonLambdaClient
AmazonLambdaClient client = new AmazonLambdaClient("awsaccessKeyID", "awsSecreteAccessKey", RegionEndpoint.USEast2);
//Create new InvokeRequest with published function name.
InvokeRequest invoke = new InvokeRequest
{
    FunctionName = "MyNewFunction",
    InvocationType = InvocationType.RequestResponse,
    Payload = "\"Test\""
};
//Get the InvokeResponse from client InvokeRequest.
InvokeResponse response = client.Invoke(invoke);
//Read the response stream
var stream = new StreamReader(response.Payload);
JsonReader reader = new JsonTextReader(stream);
var serilizer = new JsonSerializer();
var responseText = serilizer.Deserialize(reader);
//Convert Base64String into PowerPoint document
byte[] bytes = Convert.FromBase64String(responseText.ToString());
FileStream fileStream = new FileStream("Sample.pptx", FileMode.Create);
BinaryWriter writer = new BinaryWriter(fileStream);
writer.Write(bytes, 0, bytes.Length);
writer.Close();
System.Diagnostics.Process.Start("Sample.pptx");

By executing the program, you will get the PowerPoint document as follows.

From GitHub, you can download the console application and AWS Lambda project.

Click here to explore the rich set of Syncfusion PowerPoint Library (Presentation) features.

An online sample link to create a PowerPoint Presentation in ASP.NET Core.