Developing a High-Performance On-Chain Perpetual DEX Platform

A perpetual DEX with centralized-exchange speed

We created a high-performance decentralized exchange (DEX) that's designed to provide the fast and responsive experience of a centralized exchange, with the transparency and security of blockchain technology. The web application was created for a group of traders who wish to engage in a decentralized on-chain trading environment, with a smoother and more dependable experience.

This platform was mainly concerned about the wallet integration, trading speed, and responsiveness of the front end. The aim was to develop a smooth trading workflow that was equally seamless on the desktop and mobile platforms, while maintaining security and regulatory standards.

Wallet connections across MetaMask, WalletConnect, and more

The most significant hurdle has been connecting wallets with various Web3 providers, including MetaMask and WalletConnect. Wallet providers were not consistent across different browsers and devices, causing an inconsistent user experience and connection failures during testing.

A further challenge was the implementation of the regional restrictions without allowing customers to circumvent compliance checks using VPN services. The system should detect masked traffic and deny restricted region access while maintaining a hassle-free user experience.

Important optimization was also needed to make the front-end responsive when interacting with the wallet or when performing blockchain transactions. If signing requests or transaction confirmations are made late, this may impact the trading experience, particularly during periods of high trading volumes.

How we built it: a real-time Next.js trading interface

The frontend was developed with Next.js, Tailwind CSS, and SASS to ensure a fast and responsive trading interface that handles real-time user interaction seamlessly. The UI was created to facilitate easy wallet connections, fast navigation, and smooth workflows through transactions from device to device.

To connect with blockchain, we added Wagmi V2, Viem V2, and Web3.js V4 to control wallet communication, smart contract interactions, and transaction handling. A single wallet adapter layer was designed to standardize the behavior of providers and eliminate compatibility concerns between different Web3 clients like WalletConnect and MetaMask.

All backend workflows, secure session handling, and application-level data handling were done via Supabase. We also made the integration of the Dune Analytics SDK to enable blockchain analytics, insights into trading, and ecosystem reporting.

We added server-side geo-IP validation to prevent access to restricted regions at the onboarding stage to increase compliance and platform security. IP reputation scoring and ASN-based filtering were also integrated as a VPN detection layer to better detect and block masked signups.

What we shipped: a complete Web3 trading stack

We provided a comprehensive Web3 trading solution, which involved:

• Built-in multi-wallet Web3 authentication support.
• Trade in perpetuals on a responsive interface.
• Smart Contracts and Blockchain transactions integration.
• Geo-restriction is enabled with a VPN detection system.
• Provide safe employee onboarding and employee session management.
• Trading experience via mobile or web.

During cross-browser and mobile testing, the unified wallet integration layer decreased wallet connection inconsistencies by around 20-30%. It has also achieved significant wallet interaction response time improvements in most trading flows from almost 4-5 seconds to less than 2 seconds.

During the early monitoring periods, between 35-45% of the sign-ups were prevented as a result of geo-restriction and VPN filtering systems. These enhancements produced a much more stable and compliant means of onboarding confirmed users.

The outcome: CEX speed, DEX transparency

The platform managed to seamlessly blend in the speed with which modern trading systems function, and the transparency and decentralization of blockchain infrastructure. The traders had a seamless and consistent on-chain trading experience on desktop and mobile devices.

This case study emphasizes Coding Crafts' proficiency in creating scalable Web3 applications that feature intricate wallet integration, blockchain infrastructure, real-time front-end systems, and compliance-centric architecture. The solution achieved this balance, ensuring ease of use, security, and performance to match the needs of today's decentralized trading platforms.