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Rust Reference API

Table of Contents

🚧 PARTIAL IMPLEMENTATION 🚧

⚠️ Note: This is a partial implementation (~40% complete) demonstrating core Rust/Actix-web patterns.

Purpose: Demonstrates production-ready Rust patterns with Actix-web framework, async/await, type safety, testing, and basic infrastructure integration. While not as feature-complete as the Python, Go, or Node.js implementations, this serves as a solid foundation for Rust-based APIs.

What's Implemented ✅

  • ✅ Actix-web server with 4 production endpoints
  • ✅ Comprehensive testing (5 unit tests + 11 integration tests)
  • ✅ Vault integration for health checks
  • ✅ CORS middleware properly configured
  • ✅ Async/await patterns with Tokio runtime
  • ✅ Type-safe structs with Serde serialization
  • ✅ Environment configuration for flexible deployment
  • ✅ Logging infrastructure with env_logger
  • ✅ CI/CD integration (cargo fmt, cargo clippy)

Missing Features (compared to full implementations)

  • ❌ Database integration (PostgreSQL, MySQL, MongoDB)
  • ❌ Redis cache integration
  • ❌ RabbitMQ messaging
  • ❌ Circuit breakers
  • ❌ Advanced error handling patterns
  • ❌ Structured/production logging (e.g., JSON logs)
  • ❌ Rate limiting
  • ❌ Real Prometheus metrics (placeholder only)

Current Implementation

A well-tested Rust/Actix-web application demonstrating core infrastructure integration patterns with comprehensive test coverage. Suitable for learning Rust API development and as a foundation for extending with additional features.

Core Features

  • Actix-web: High-performance async web framework
  • Health Checks: Simple health endpoints with Vault connectivity
  • Vault Integration: Vault service health monitoring
  • Type Safety: Rust's compile-time guarantees preventing runtime errors
  • Performance: Zero-cost abstractions for maximum efficiency
  • Testing: Comprehensive unit and integration test suite
  • CORS: Properly configured cross-origin resource sharing

Quick Start

# Start the Rust reference API
docker compose up -d rust-api

# Test endpoints
curl http://localhost:8004/
curl http://localhost:8004/health/
curl http://localhost:8004/health/vault

API Endpoints

  • GET / - API information
  • GET /health/ - Simple health check
  • GET /health/vault - Vault connectivity test
  • GET /metrics - Metrics placeholder

Port

  • HTTP: 8004
  • HTTPS: 8447 (when TLS enabled)

Build

cd reference-apps/rust
cargo build --release
./target/release/devstack-core-rust-api

Note

This implementation demonstrates core Rust/Actix-web patterns with comprehensive testing. While it doesn't include all infrastructure integrations (databases, caching, messaging), it provides a solid, production-ready foundation that can be extended by following patterns from the Python, Go, or Node.js implementations.