PreetyTwist E-Commerce Platform

A high-performance, modern e-commerce solution engineered for scalability and seamless user experience.

1. Overview
2. Architecture & Tech Stack
3. Key Features
4. Getting Started
5. Project Structure

This project represents a production-grade e-commerce application built on the Next.js 15 framework. It leverages a modern, type-safe stack to deliver a robust shopping experience, featuring server-side rendering for SEO optimization, secure authentication flows, and a responsive implementation of the PreetyTwist design language.

The platform is designed with modularity in mind, utilizing a component-based architecture and a scalable backend infrastructure powered by Neon PostgreSQL and Drizzle ORM.

The application is built on a full-stack Next.js architecture, ensuring optimal performance through hybrid rendering strategies (SSR/SSG).

• Next.js 16: React framework for production, utilizing App Router and Server Actions.
• TypeScript: Comprehensive static typing for enhanced code quality and maintainability.
• React 19: Latest React features including Server Components and Suspense.

• Tailwind CSS: Utility-first CSS framework for rapid, responsive UI development.
• Lucide React & Tabler Icons: Consistent and lightweight icon library.

• Drizzle ORM: Type-safe ORM for efficient database queries and migrations.
• Neon PostgreSQL: Serverless Postgres database with autoscaling capabilities.
• Better Auth: Comprehensive authentication solution handling OAuth and credential flows.
• Cloudflare R2: S3-compatible object storage for assets and media.

• ZeptoMail: Transactional email service for reliable delivery.
• React PDF: PDF generation for digital receipts and documents.

• Zustand: Lightweight, transient-state management store.

• Performance-First Experience: Optimized Core Web Vitals with image optimization, code splitting, and dynamic imports..
• Secure Authentication: Multi-provider support (Google, GitHub, Email/Password) with session management via Better Auth.
• Cart & Checkout Flow: Persistent shopping cart state managed via Zustand with seamless transition to order processing.
• Digital Receipts: Automated PDF receipt generation for completed orders.
• Transactional Emails: Automated email notifications using ZeptoMail.
• Responsive Design: Mobile-first approach ensuring consistency across all device viewports.
• Real-time Database Interactions: Efficient data fetching and mutations using Server Actions.

Review the prerequisites and follow the steps below to deploy the development environment locally.

• Node.js: v18.17.0 or higher
• Package Manager: npm, pnpm, or yarn
• Git: Version control system

1. Clone the repository

   git clone https://github.com/gitadityakumar/eCommerce
   cd eCommerce

2. Install dependencies

   npm install
   # or
   pnpm install

3. Environment Configuration Create a .env file in the root directory and configure the following variables:

   # Database Connection
   DATABASE_URL="postgresql://user:password@host/dbname?sslmode=require"
   
   # Authentication (Better Auth)
   BETTER_AUTH_SECRET="your-generated-secret-key"
   BETTER_AUTH_URL="http://localhost:3000"
   
   # Cloudflare R2 (Storage)
   R2_ACCESS_KEY_ID="your-r2-access-key"
   R2_SECRET_ACCESS_KEY="your-r2-secret-key"
   R2_ENDPOINT="your-r2-endpoint"
   R2_BUCKET="your-bucket-name"
   
   # ZeptoMail (Email)
   ZEPTOMAIL_API_KEY="your-zeptomail-api-key"
   ZEPTOMAIL_FROM_EMAIL="noreply@yourdomain.com"
   ZEPTOMAIL_FROM_NAME="Your Store Name"
   ZEPTOMAIL_BASE_URL="https://api.zeptomail.in/v1.1/email"
   
   # Postal API
   NEXT_PUBLIC_POSTAL_PINCODE_API_URL="https://api.postalpincode.in/pincode"
   
   # Payments (PhonePe)
   PHONEPE_CLIENT_ID="your-client-id"
   PHONEPE_CLIENT_SECRET="your-client-secret"
   PHONEPE_CLIENT_VERSION="1"
   PHONEPE_BASE_SANDBOX_URL="https://api-preprod.phonepe.com/apis/pg-sandbox"
   
   # Shiprocket
   SHIPROCKET_EMAIL="your-email"
   SHIPROCKET_PASSWORD="your-password"

4. Initialize Database Push the schema to your database instance:

   npm run db:push

5. Start Development Server

   npm run dev

   The application will be available at http://localhost:3000.

The codebase follows a scalable feature-based structure within the src directory.

src/
├── app/                  # Next.js App Router (Pages & API)
│   ├── (auth)/           # Authentication routes group
│   ├── (shop)/           # E-commerce main routes
│   └── api/              # API Routes (Auth, Webhooks)
├── components/           # Reusable UI components
│   ├── ui/               # Design system primitives
│   └── shared/           # Business logic components
├── lib/                  # Core libraries and configuration
│   ├── auth.ts           # Authentication logic
│   ├── db/               # Database client & Schema definitions
│   └── utils.ts          # Helper utility functions
└── store/                # Global state stores (Zustand)