Create Word document in AWS Lambda

22 Jul 202615 minutes to read

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

Prerequisites

Before you begin, ensure the following are in place:

  • Install the AWS Toolkit for Visual Studio extension.
  • An active AWS account with permission to create and invoke Lambda functions (IAM role with the AWSLambdaBasicExecutionRole managed policy).
  • AWS access key ID and secret access key for the console client.
  • A supported .NET target framework: .NET 8 or later.

Steps to create Word document in AWS Lambda

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

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

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

Install Syncfusion.DocIO.Net.Core NuGet package

NOTE

Starting with v16.2.0.x, if you reference Syncfusion® assemblies from the trial setup or from the NuGet feed, you must add a reference to the Syncfusion.Licensing assembly and include a valid license key in your application.

Install the Syncfusion.Licensing NuGet package and register the license key during application startup.

Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("YOUR_LICENSE_KEY");

For more information about generating and registering a license key, refer to the Syncfusion® licensing documentation.

Step 4: Create a folder named Data in the project root and copy the following required image files into it. Include the files in the project.

  • AdventureCycle.jpg
  • Mountain-200.jpg
  • Mountain-300.jpg
  • Road-550-W.jpg

You can obtain these images from the DocIO examples repository.
Create a folder

Step 5: Open the properties of each data file and set Copy to Output Directory to Copy if newer.
Property change for data files

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

using Syncfusion.DocIO;
using Syncfusion.DocIO.DLS;

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

// Creating a new document.
WordDocument document = new WordDocument();
//Adding a new section to the document.
WSection section = document.AddSection() as WSection;
//Set Margin of the section
section.PageSetup.Margins.All = 72;
//Set page size of the section
section.PageSetup.PageSize = new Syncfusion.Drawing.SizeF(612, 792);

//Create Paragraph styles
WParagraphStyle style = document.AddParagraphStyle("Normal") as WParagraphStyle;
style.CharacterFormat.FontName = "Calibri";
style.CharacterFormat.FontSize = 11f;
style.ParagraphFormat.BeforeSpacing = 0;
style.ParagraphFormat.AfterSpacing = 8;
style.ParagraphFormat.LineSpacing = 13.8f;

style = document.AddParagraphStyle("Heading 1") as WParagraphStyle;
style.ApplyBaseStyle("Normal");
style.CharacterFormat.FontName = "Calibri Light";
style.CharacterFormat.FontSize = 16f;
style.CharacterFormat.TextColor = Syncfusion.Drawing.Color.FromArgb(46, 116, 181);
style.ParagraphFormat.BeforeSpacing = 12;
style.ParagraphFormat.AfterSpacing = 0;
style.ParagraphFormat.Keep = true;
style.ParagraphFormat.KeepFollow = true;
style.ParagraphFormat.OutlineLevel = OutlineLevel.Level1;

IWParagraph paragraph = section.HeadersFooters.Header.AddParagraph();
// Gets the image stream.
string filePath = Path.GetFullPath(@"Data/AdventureCycle.jpg");
FileStream imageStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
IWPicture picture = paragraph.AppendPicture(imageStream);
picture.TextWrappingStyle = TextWrappingStyle.InFrontOfText;
picture.VerticalOrigin = VerticalOrigin.Margin;
picture.VerticalPosition = -45;
picture.HorizontalOrigin = HorizontalOrigin.Column;
picture.HorizontalPosition = 263.5f;
picture.WidthScale = 20;
picture.HeightScale = 15;

paragraph.ApplyStyle("Normal");
paragraph.ParagraphFormat.HorizontalAlignment = HorizontalAlignment.Left;
WTextRange textRange = paragraph.AppendText("Adventure Works Cycles") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Calibri";
textRange.CharacterFormat.TextColor = Syncfusion.Drawing.Color.Red;

//Appends paragraph.
paragraph = section.AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.HorizontalAlignment = HorizontalAlignment.Center;
textRange = paragraph.AppendText("Adventure Works Cycles") as WTextRange;
textRange.CharacterFormat.FontSize = 18f;
textRange.CharacterFormat.FontName = "Calibri";

//Appends paragraph.
paragraph = section.AddParagraph();
paragraph.ParagraphFormat.FirstLineIndent = 36;
paragraph.BreakCharacterFormat.FontSize = 12f;
textRange = paragraph.AppendText("Adventure Works Cycles, the fictitious company on which the AdventureWorks sample databases are based, is a large, multinational manufacturing company. The company manufactures and sells metal and composite bicycles to North American, European and Asian commercial markets. While its base operation is in Bothell, Washington with 290 employees, several regional sales teams are located throughout their market base.") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;

//Appends paragraph.
paragraph = section.AddParagraph();
paragraph.ParagraphFormat.FirstLineIndent = 36;
paragraph.BreakCharacterFormat.FontSize = 12f;
textRange = paragraph.AppendText("In 2000, AdventureWorks Cycles bought a small manufacturing plant, Importadores Neptuno, located in Mexico. Importadores Neptuno manufactures several critical subcomponents for the AdventureWorks Cycles product line. These subcomponents are shipped to the Bothell location for final product assembly. In 2001, Importadores Neptuno, became the sole manufacturer and distributor of the touring bicycle product group.") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;

paragraph = section.AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.HorizontalAlignment = HorizontalAlignment.Left;
textRange = paragraph.AppendText("Product Overview") as WTextRange;
textRange.CharacterFormat.FontSize = 16f;
textRange.CharacterFormat.FontName = "Calibri";

//Appends table.
IWTable table = section.AddTable();
table.ResetCells(3, 2);
table.TableFormat.Borders.BorderType = BorderStyle.None;
table.TableFormat.IsAutoResized = true;
//Appends paragraph.
paragraph = table[0, 0].AddParagraph();
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.BreakCharacterFormat.FontSize = 12f;
//Appends picture to the paragraph.
string filePath1 = Path.GetFullPath(@"Data/Mountain-200.jpg");
FileStream image1 = new FileStream(filePath1, FileMode.Open, FileAccess.Read);
picture = paragraph.AppendPicture(image1);
picture.TextWrappingStyle = TextWrappingStyle.TopAndBottom;
picture.VerticalOrigin = VerticalOrigin.Paragraph;
picture.VerticalPosition = 4.5f;
picture.HorizontalOrigin = HorizontalOrigin.Column;
picture.HorizontalPosition = -2.15f;
picture.WidthScale = 79;
picture.HeightScale = 79;

//Appends paragraph.
paragraph = table[0, 1].AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.AppendText("Mountain-200");
//Appends paragraph.
paragraph = table[0, 1].AddParagraph();
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.BreakCharacterFormat.FontSize = 12f;
paragraph.BreakCharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Product No: BK-M68B-38\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Size: 38\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Weight: 25\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Price: $2,294.99\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
//Appends paragraph.
paragraph = table[0, 1].AddParagraph();
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.BreakCharacterFormat.FontSize = 12f;

//Appends paragraph.
paragraph = table[1, 0].AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.AppendText("Mountain-300 ");
//Appends paragraph.
paragraph = table[1, 0].AddParagraph();
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.BreakCharacterFormat.FontSize = 12f;
paragraph.BreakCharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Product No: BK-M47B-38\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Size: 35\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Weight: 22\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Price: $1,079.99\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
//Appends paragraph.
paragraph = table[1, 0].AddParagraph();
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.BreakCharacterFormat.FontSize = 12f;

//Appends paragraph.
paragraph = table[1, 1].AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.LineSpacing = 12f;
//Appends picture to the paragraph.
string filePath2 = Path.GetFullPath(@"Data/Mountain-300.jpg");
FileStream image2 = new FileStream(filePath2, FileMode.Open, FileAccess.Read);
picture = paragraph.AppendPicture(image2);
picture.TextWrappingStyle = TextWrappingStyle.TopAndBottom;
picture.VerticalOrigin = VerticalOrigin.Paragraph;
picture.VerticalPosition = 8.2f;
picture.HorizontalOrigin = HorizontalOrigin.Column;
picture.HorizontalPosition = -14.95f;
picture.WidthScale = 75;
picture.HeightScale = 75;

//Appends paragraph.
paragraph = table[2, 0].AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.LineSpacing = 12f;
//Appends picture to the paragraph.
string filePath3 = Path.GetFullPath(@"Data/Road-550-W.jpg");
FileStream image3 = new FileStream(filePath3, FileMode.Open, FileAccess.Read);
picture = paragraph.AppendPicture(image3);
picture.TextWrappingStyle = TextWrappingStyle.TopAndBottom;
picture.VerticalOrigin = VerticalOrigin.Paragraph;
picture.VerticalPosition = 3.75f;
picture.HorizontalOrigin = HorizontalOrigin.Column;
picture.HorizontalPosition = -5f;
picture.WidthScale = 92;
picture.HeightScale = 92;

//Appends paragraph.
paragraph = table[2, 1].AddParagraph();
paragraph.ApplyStyle("Heading 1");
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.AppendText("Road-150 ");
//Appends paragraph.
paragraph = table[2, 1].AddParagraph();
paragraph.ParagraphFormat.AfterSpacing = 0;
paragraph.ParagraphFormat.LineSpacing = 12f;
paragraph.BreakCharacterFormat.FontSize = 12f;
paragraph.BreakCharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Product No: BK-R93R-44\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Size: 44\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Weight: 14\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
textRange = paragraph.AppendText("Price: $3,578.27\r") as WTextRange;
textRange.CharacterFormat.FontSize = 12f;
textRange.CharacterFormat.FontName = "Times New Roman";
//Appends paragraph.
section.AddParagraph();

//Save the Word document into stream
MemoryStream stream = new MemoryStream();
document.Save(stream, FormatType.Docx);
return Convert.ToBase64String(stream.ToArray());

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

Step 9: Create a new AWS profile in the Upload Lambda Function Window. To create a profile, you need your AWS access key ID, secret access key, and region. After creating the profile, add a name for the Lambda function to publish. Then, click Next.
Upload Lambda Function

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.
Advance Function Details

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

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

Steps to invoke the AWS Lambda function from a console app

Step 1: Create a new console project.
Create a console project

Step 2: Install the following NuGet packages in your application from NuGet.org.

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

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.

NOTE

The Payload value "\"Test\"" is sent because the Lambda FunctionHandler expects a string input, but it is not used inside the handler.

//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 serializer = new JsonSerializer();
var responseText = serializer.Deserialize(reader);
//Convert Base64String into Word document
byte[] bytes = Convert.FromBase64String(responseText.ToString());
FileStream fileStream = new FileStream("Sample.docx", FileMode.Create);
BinaryWriter writer = new BinaryWriter(fileStream);
writer.Write(bytes, 0, bytes.Length);
writer.Close();
System.Diagnostics.Process.Start("Sample.docx");

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

Create a Word document in AWS Lambda

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

Looking for the full .NET Word Library overview, features, pricing, and documentation? Visit the .NET Word Library page.

An online sample link to create a Word document in ASP.NET Core.