Serverless

Serverless is a cloud-native development model for building and running applications without managing servers. The cloud provider handles the routine work of provisioning, maintaining, and scaling the server infrastructure.

When to Use

• Event-driven background tasks (Image processing, Cron jobs).
• APIs with spiky or unpredictable traffic (Auto-scales instantly).
• Startup/MVP where "Scale to Zero" (Zero cost when idle) is critical.
• Glue code between cloud services (e.g., S3 trigger -> Lambda -> DynamoDB).

Quick Start

// AWS Lambda Handler (Node.js)
export const handler = async (event) => {
  console.log("Event received:", JSON.stringify(event));

  const name = event.queryStringParameters?.name || "World";