INTERNET BILLING SYSTEM (ISP)

A modern internet service provider billing system built with Next.js, Express, and Prisma. This system allows ISPs to manage customer subscriptions, handle payments, and provide self-service capabilities to customers.

Features

• 🔐 Secure Authentication System
• 💳 Integrated Payment Gateway (bKash)
• 📊 Customer Dashboard
• 🎯 Package Management
• 📱 Responsive Design
• 🌙 Dark Mode Support
• 🔄 Real-time Subscription Status
• 📊 Admin Dashboard

Tech Stack

• Frontend: Next.js 14, TailwindCSS, Framer Motion
• Backend: Express.js, Prisma ORM
• Database: PostgreSQL
• Authentication: JWT
• Payment: bKash Integration
• Styling: TailwindCSS, CSS Modules
• State Management: TanStack Query
• Form Handling: Conform
• Validation: Zod
• Testing: Vitest
• Development: TypeScript, Turbo Repo

Prerequisites

• Node.js >= 20
• pnpm >= 9.15.3
• PostgreSQL

Project Structure

.
├── apps
│ ├── api # Express backend
│ └── web # Next.js frontend
├── packages
│ ├── database # Prisma schema and migrations
│ ├── eslint-config # Shared ESLint configurations
│ ├── tsconfig # Shared TypeScript configurations
│ └── validation # Shared validation schemas

Getting Started

Create .env files in apps/web and apps/api

cp apps/web/.env.example apps/web/.env.local
cp apps/api/.env.example apps/api/.env

Set up the database:

pnpm db:push # Push the schema to database
pnpm db:generate # Generate Prisma Client
pnpm db:seed # Seed the database

Run the development server

pnpm dev

Available Scripts

- `pnpm dev` - Start development servers
- `pnpm build` - Build all applications
- `pnpm lint` - Run ESLint
- `pnpm format` - Format code with Prettier
- `pnpm test` - Run tests
- `pnpm db:studio` - Open Prisma Studio