Lion X Ecosystem
Enterprise-grade Web3 platform with sophisticated API architecture seamlessly connecting React frontend, NestJS backend infrastructure, and blockchain smart contracts. Built comprehensive API integration layer enabling secure blockchain communication, stablecoin support, multi-wallet connectivity, and optimized transaction routing across Base Chain assets.
Client
Lion X Ecosystem (lionxeco.net)
Timeline
Nov 2022 - Aug 2023
Duration
10 months
The Challenge
Lion X required a sophisticated multi-tiered architecture that could handle direct blockchain interactions for speed while routing sensitive data and complex transactions through a secure backend API layer. Critical challenges included data privacy concerns, redundant blockchain requests degrading performance, high transaction slippage across diverse asset types, and limited wallet compatibility restricting user accessibility.
No clear data separation strategy between frontend-blockchain and backend-blockchain communication
Redundant requests and transactions causing 20%+ slower load times
High percentage slippage during in-app swaps across Base Chain gas assets, stablecoins, and platform tokens
Limited wallet support restricting platform accessibility and conversion rates
Complex blockchain operations exposing sensitive transaction data
Suboptimal user experience due to system design inefficiencies
API Architecture & Integration Strategy
Architected a sophisticated multi-tiered API integration leveraging precise React state management for direct blockchain communication while strategically routing sensitive data and complex transactions through a NestJS backend API layer. This hybrid approach ensured optimal data privacy, streamlined blockchain interactions, and maintained exceptional speed and usability.
Phase 1: Multi-Tiered API Architecture
Designed and implemented comprehensive API architecture with clear separation of concerns: React frontend with Web3.js for direct smart contract reads/writes requiring real-time responsiveness, while routing sensitive operations (user data, complex transactions, analytics) through secure NestJS REST API layer. Collaborated closely with Solidity and frontend teams to establish optimal data flow patterns.
Phase 2: Data Filtration & Performance Optimization
Spearheaded architectural design of robust data separation and filtration strategy. Implemented intelligent caching layer in NestJS backend reducing redundant blockchain requests by 35%. Built API middleware for data validation, sanitization, and privacy protection. This initiative resolved critical system design challenges and led to 20% improvement in website load time.
Phase 3: Wallet & Payment Integration
Orchestrated full platform integration with blockchain, establishing secure API communication channels with smart contracts. Expanded wallet compatibility by integrating TronLink and WalletConnect APIs, allowing users to seamlessly connect preferred wallets. Introduced comprehensive stablecoin support (USDT, USDC, DAI) through custom API endpoints, expanding platform financial utility and user options.
Phase 4: Advanced Path-Finding Algorithm
Designed, engineered, and deployed sophisticated path-finding algorithm API service to minimize in-app swapping percentage slippage. Algorithm analyzes liquidity pools across Base Chain for gas assets, stablecoins, and custom platform tokens, calculating optimal routing paths. Integrated with DEX aggregator APIs for real-time price discovery, significantly reducing user transaction costs.
Phase 5: UX-Driven System Redesign
Drove data-driven system redesign initiative conducting comprehensive user experience testing and detailed journey mapping analyses. Leveraged insights to re-architect key API endpoints and frontend components, optimizing data flow and interaction patterns. Significantly elevated product usability, leading to improved accessibility, heightened user retention, increased engagement, and marked increase in overall conversion rate.
Technologies Used
Next.js & React
Frontend framework with advanced state management for blockchain interactions
NestJS & TypeScript
Enterprise backend API services with dependency injection
Solidity
Smart contracts on Base Chain (Ethereum L2)
Web3.js & Ethers.js
Blockchain interaction libraries
WalletConnect API
Multi-wallet connection protocol
TronLink Integration
Tron wallet connectivity
PostgreSQL
Primary database for user data and analytics
Redis
Caching layer for blockchain data
Impact & Results
The API architecture and integration work transformed our platform from a simple blockchain interface into a sophisticated financial ecosystem. The multi-tiered approach gave us the perfect balance of security, performance, and user experience.
Technical Lead
Lion X Ecosystem
Key Features
Hybrid API architecture: Direct React-blockchain communication + secure NestJS backend layer
Advanced path-finding algorithm minimizing swap slippage across multiple asset types
Multi-wallet support: MetaMask, WalletConnect, TronLink integration
Comprehensive stablecoin support (USDT, USDC, DAI) with seamless API integration
Intelligent caching layer reducing redundant blockchain requests by 35%
Data-driven UX optimization increasing conversion rates and user retention
Secure API middleware for sensitive transaction routing and data privacy
Real-time blockchain event monitoring and user notification system