ShrinkIt — Serverless URL Shortener

ShrinkIt is an open-source, serverless URL shortener built with AWS SAM and Go (Golang). It allows you to shorten long URLs into tiny, shareable links while staying cost-efficient and fully under your control.

✨ Features

• 🔗 Short URLs — Generate simple, easy-to-share links.
• ⚡ Serverless — Powered by AWS Lambda for high scalability and low cost.
• 🛠 Built with Go — Fast, efficient, and highly portable.
• 🧩 Infrastructure as Code — Managed using AWS SAM templates.

🏗️ Architecture

ShrinkIt is designed as a fully serverless app:

• API Gateway — Provides REST endpoints for creating and retrieving short URLs.
• Lambda (Go) — Business logic written in Go, handling shortening and redirection.
• DynamoDB — Stores original URLs and short-code mappings.
• AWS SAM — Deploys and manages the entire infrastructure.

[ Client ] → [ API Gateway ] → [ Lambda (Go) ] → [ DynamoDB ]

🚀 Getting Started

Prerequisites

• AWS CLI configured with your account
• AWS SAM CLI installed
• Go 1.23+

1. Clone the Repository

git clone https://github.com/ticatwolves/shrinkIt.git
cd shrinkIt

2. Build the Project

make build

3. Deploy to AWS

make deploy

Follow the prompts to configure stack name, region, and permissions.

4. Usage

• Shorten a URL

  curl -X POST https://<api-id>.execute-api.<region>.amazonaws.com/prod     -H "Content-Type: application/json"     -d '{"url": "https://example.com/very/long/url"}'

  Response:

  { "short_url": "https://<api-id>.execute-api.<region>.amazonaws.com/prod/shrink/abcd123" }

• Redirect to original URL

  curl -i https://<api-id>.execute-api.<region>.amazonaws.com/prod/shrink/abcd123

🛠 Development

Run Locally with SAM

make local-start

Test with:

curl http://127.0.0.1:3000/shrink -d '{"url":"https://example.com"}'

📂 Project Structure

.
├── cmd/             # Go Lambda handler
├── internal/        # Business logic
├── deploy/template.yaml    # AWS SAM template
├── go.mod
└── README.md

📜 License

This project is licensed under the MIT License.