SwiftCart – Scalable E-Commerce Infrastructure

SwiftCart is a full-stack e-commerce platform built with a modern Android frontend and scalable backend architecture. It supports real-time product browsing, secure user authentication, and high-throughput order processing.

Swiftcart Backend

Tech Stack

Frontend (Android)

• Language: Kotlin
• Framework: Jetpack Compose
• Features: MVVM architecture, LiveData, Navigation, Retrofit, Coroutines, JWT-based auth

Backend

• Language: Kotlin
• Framework: Spring Boot (Microservices)
• Storage: PostgreSQL (RDS), AWS S3
• Auth: OAuth2, JWT
• Infra: Docker, AWS ECS, JMeter

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Features

• User registration, login, and secure JWT-based session management
• Product listing, search, and category filtering
• Cart and order management with real-time stock checks
• Image upload and retrieval via AWS S3
• Optimized database with indexing and connection pooling
• Load tested to handle >5000 concurrent sessions with P95 latency <180ms

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Setup Instructions

Backend

1. Clone the backend repo:

   git clone https://github.com/shaurya-afk/swiftcart-backend.git
   cd swiftcart-backend

2. Configure .env or application.yml with DB credentials, S3 keys, JWT secret.

3. Build and run:

   ./mvnw clean install
   docker-compose up

Frontend (Android)

1. Clone the frontend repo:

   git clone https://github.com/shaurya-afk/swiftcart-frontend.git
   cd swiftcart-frontend

2. Open in Android Studio.

3. Set base API URL and JWT keys in a local secrets.properties.

4. Run on emulator or device.

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Performance

• Load tested using JMeter: sustained 5K RPS
• Backend latency: P95 <180ms
• Asynchronous processing with stateless services deployed on AWS ECS

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