AWS Serverless Snippets

A collection of code snippets for AWS serverless development with Express, DynamoDB, and S3. This extension provides ready-to-use code snippets to accelerate your serverless application development using AWS services.

Features

• Express Setup: Quickly set up an Express application with AWS SDK v3 configuration
• DynamoDB Operations: Create, read, update, and delete items in DynamoDB tables
• S3 File Management: Upload and delete files from S3 buckets
• Express Routes: Ready-to-use route handlers for CRUD operations
• EJS Templates: HTML templates for creating forms and displaying data

Installation

1. Open VS Code
2. Go to Extensions (Ctrl+Shift+X)
3. Search for "AWS Serverless Snippets"
4. Click Install

Usage

Type the prefix in a JavaScript file and press Tab to insert the snippet.

AWS Configuration Snippets

S3 Snippets

DynamoDB Snippets

Express Route Snippets

EJS Template Snippets

Requirements

• Visual Studio Code 1.98.0 or higher
• For using the snippets in your project, you'll need:
  • Node.js and npm
  • AWS account with appropriate permissions
  • AWS SDK v3 for JavaScript

Example

To create a basic Express app with AWS configuration:

1. Create a new JavaScript file
2. Type aws-express and press Tab
3. The boilerplate code will be inserted

Dependencies

The snippets assume you have the following npm packages installed in your project:

npm install express dotenv path multer uuid
npm install @aws-sdk/client-dynamodb @aws-sdk/lib-dynamodb @aws-sdk/client-s3

Initial release of AWS Serverless Snippets with support for:

• Express setup with AWS SDK v3
• DynamoDB CRUD operations
• S3 file upload and deletion
• Express routes for CRUD operations
• EJS templates for forms and data display

Enjoy!

Sample code snippets for AWS serverless development with Express, DynamoDB, and S3. This extension provides ready-to-use code snippets to accelerate your serverless application development using AWS services.

🧩 Snippet: aws-dynamo-update

Update item in DynamoDB using AWS SDK v3 with UpdateExpression and ExpressionAttributeValues.

Prefix: aws-dynamo-update

async function updateItem(id, updateExpression, expressionValues) {
  const command = new UpdateCommand({
    TableName: process.env.DYNAMO_TABLE_NAME,
    Key: { id },
    UpdateExpression: updateExpression,
    ExpressionAttributeValues: expressionValues,
    ReturnValues: "ALL_NEW",
  });

  const result = await documentClient.send(command);
  return result.Attributes;
}

await updateItem("user123", "SET name = :name, description = :desc", {
  ":name": "Name",
  ":desc": "Description",
});

Guide to Deploy a Node.js Project on EC2

1. Configure Security Group

After launching the EC2 instance, make sure to configure the Security Group:

• For SSH, open the appropriate IP (e.g., your local IP) to allow access.

2. Copy Code Directory from Local to EC2

• Remove the node_modules and .git folders from your code directory before uploading.

scp -i ./path/key.pem -r code_folder ubuntu@public_ip:/home/ubuntu/

Note: You must have the .pem key file to perform this copy operation.

3. Set Up Environment on Ubuntu EC2

After successfully transferring the code files to your EC2 Ubuntu instance, follow these steps:

sudo apt update -y
sudo apt install nodejs npm -y

4. Run the Project

cd path/to/your/code_folder
npm install
npm start

Tip: Make sure your application listens on 0.0.0.0 or your public IP so it can be accessed externally.