Horizon - A Full-Stack Banking Platform with Next.js and Plaid

Developed Horizon, a comprehensive online banking platform that connects to multiple bank accounts, displays real-time transactions, and enables secure money transfers between users, all built with Next.js, TypeScript, and integrated with Plaid for banking functionality.

Traditional financial trackers often function like simple to-do apps where users manually add income, deduct expenses, and view basic charts. These solutions lack real banking functionality and connectivity to actual financial institutions. Users need a more sophisticated platform that can connect to real bank accounts, display genuine transaction data, and facilitate actual money transfers.

To build Horizon, a fully functional online banking platform that connects to multiple bank accounts, displays transactions in real-time, and enables secure money transfers between users.

Integrating multiple third-party services (Plaid, Dwolla, Appwrite) to create a cohesive banking experience while maintaining security and performance across the application.

Create a secure authentication system, implement bank account connectivity, develop transaction history with filtering, and build a payment transfer system between accounts.

The development process began with setting up the Next.js project structure and implementing the UI layout. We then built the authentication system using Appwrite, integrated Plaid for bank connectivity, implemented Dwolla for payment processing, and added Sentry for application monitoring. The project followed a component-based architecture with reusable UI elements and server actions for backend functionality.

Implemented a secure server-side authentication system using Appwrite that stores user data in a database and manages sessions securely, protecting sensitive financial information.

Successfully integrated with Plaid to connect real bank accounts, fetch transaction data, and display account balances, providing users with genuine financial information rather than mock data.

Built a secure payment transfer system using Dwolla that allows users to send money between different accounts on the platform, complete with transaction status tracking and processing.

Managing complex form validation across multiple forms with different requirements for sign-in, sign-up, and money transfers.

Created a reusable form system using React Hook Form, Zod, and shadcn/ui components that dynamically adjusts validation rules based on the form type, significantly reducing code duplication and ensuring consistent validation.

Implementing secure server-side data fetching and mutations while protecting sensitive financial information.

Utilized Next.js server actions to handle sensitive operations server-side, keeping API keys and tokens secure while implementing Sentry monitoring with privacy protection to debug issues without exposing user data.

Successfully built a fully functional banking platform that connects to real bank accounts, displays transactions in real-time, and enables secure money transfers between users. The application features a responsive design that works across all device sizes and implements modern security practices.

Horizon demonstrates how modern web technologies can be combined to create sophisticated financial applications that rival traditional banking platforms. By leveraging Next.js server components, third-party financial APIs, and robust security practices, we've created a banking platform that provides real utility while maintaining excellent performance and user experience.

•Implement recurring payments and scheduled transfers

•Add spending insights and budgeting tools

•Integrate with additional payment processors

•Develop mobile applications using React Native