StarSwap: Building a Scalable Crypto Infrastructure

StarSwap is a flagship project designed to demonstrate the feasibility of building high-throughput financial systems using modern web technologies.

Technical Depth

The project focuses on the core challenges of financial software: Accuracy, Speed, and Reliability.

Distributed Rate Limiting

We implemented a Token Bucket algorithm in Redis. This ensures that even with multiple backend instances, the global rate limit for each user is strictly enforced.

async function checkRateLimit(userId: string) {
  const tokens = await redis.get(`tokens:${userId}`);
  if (parseInt(tokens) > 0) {
    await redis.decr(`tokens:${userId}`);
    return true;
  }
  return false;
}

Atomic State Updates

To prevent race conditions during swaps, we utilized PostgreSQL's SELECT FOR UPDATE via Prisma, ensuring that a user's balance is locked during the transaction process.

Visual Excellence

The UI was built with a focus on "Data Density" and "Financial Clarity," using premium dark mode aesthetics and real-time update indicators.