TOKENFACTORY: A FULL-STACK DECENTRALIZED APPLICATION

Abstract

This article presents the design and implementation of TokenFactory, a fullstack decentralized application (dApp) for creating, deploying, trading, and staking custom ERC-20 tokens on Ethereum. The platform integrates a factory-pattern smart contract layer, a fixed-rate decentralized exchange, a Synthetix-style staking system, and subgraph-based indexing via The Graph. Its off-chain stack includes an Express.js backend with Sign-In with Ethereum (SIWE) authentication and a React frontend using Wagmi and Viem. The study shows how smart contract patterns, layered architecture, and event-drive indexing can form a modular, secure, and maintainable dApp, offering a practical reference for token-centric decentralized platforms.