Program Examples

Comprehensive DeFi program implementations using HolyC

Program Examples

Production-ready DeFi program implementations demonstrating advanced HolyC patterns for Solana development.

DeFi Programs

<h3>💱 Automated Market Maker (AMM)</h3>
<p>Constant product formula implementation with TWAP oracles and multi-hop swapping.</p>
<a href="/holyBPF-rust/programs/amm/" class="card-link">View Implementation →</a>

<h3>🏦 Lending Protocol</h3>
<p>Utilization-based interest rates, automated liquidations, and flash loans.</p>
<a href="/holyBPF-rust/programs/lending/" class="card-link">View Implementation →</a>

<h3>📊 Orderbook System</h3>
<p>Traditional price-time priority matching with stop orders and market data.</p>
<a href="/holyBPF-rust/programs/orderbook/" class="card-link">View Implementation →</a>

<h3>🔮 Prediction Markets</h3>
<p>LMSR pricing algorithm with oracle integration and conditional markets.</p>
<a href="/holyBPF-rust/programs/prediction-markets/" class="card-link">View Implementation →</a>

What You’ll Learn

Each program example demonstrates:

  • Production Patterns: Real-world code structures and best practices
  • Security: Comprehensive vulnerability prevention and access controls
  • Performance: Optimized compute unit usage and state management
  • Composability: Cross-Program Invocation (CPI) integration patterns

Program Architecture

All programs follow consistent architectural patterns:

  • Instruction Processing: Clean separation of instruction logic
  • State Management: Efficient account data structures
  • Error Handling: Comprehensive error types and recovery
  • Testing: Full test coverage with edge case handling

Getting Started

  1. Choose a program type that matches your use case
  2. Study the implementation patterns and security measures
  3. Adapt the code for your specific requirements
  4. Test thoroughly before deploying to mainnet

Each program includes complete source code, deployment instructions, and comprehensive testing suites.