Rust is known for its speed, safety, and expressive type system but what about using it for scalable web backends?

Meet rust-http-example-server: a fully-featured, production-ready web server built with Axum, the modern async web framework for Rust.

In this post, we’ll explore how this project brings together clean architecture, robust error handling, and enterprise-grade practices — all using Rust.

Why Another HTTP Server?

Most tutorials walk you through simple hello-world REST APIs or single-file applications. This project goes several steps further:

✅ Real-world structure using domain-driven design ✅ Full type safety, async support, and validation ✅ Custom middleware, logging, and configuration management ✅ Ready for Docker, CI/CD, and observability

Whether you’re learning backend Rust or building something real this is your blueprint.

Project Structure

The project follows a clean, layered architecture inspired by DDD and enterprise-grade backends:

src/ ├── main.rs // Application entry ├── config.rs // Environment/config management ├── domain/ // Business logic, entities, and DTOs ├── services/ // Core services (e.g., user management) ├── repositories/ // Data access layer ├── handlers/ // Axum route handlers ├── routes/ // Routing configurations ├── middleware/ // Custom middleware (logging, tracing) └── utils/ // Reusable helpers/utilitiesThis separation ensures each layer has a single responsibility making your codebase modular, testable, and scalable.

🚀 Getting Started

git clone https://github.com/ashokdudhade/rust-http-example-server cd rust-http-example-servercargo build cargo runBy default, the server runs on http://127.0.0.1:3000.

Key Features

Clean Architecture

• Clear separation between domain, service, repository, and handler layers.
• Easily extendable and unit-testable.

Error Handling

• Domain-specific errors mapped to proper HTTP status codes.
• Unified error response format.

Validation

• Input validation via DTOs.
• Rejection of invalid JSON payloads at the earliest point.

Async + Middleware

• Powered by Axum and Tokio.
• Includes request ID tracing and structured logging using tracing.

Configuration

• Environment variables + layered TOML config files.
• Supports multiple environments: development, production, local.

API Overview

Health Endpoints

• GET / — Welcome message
• GET /api/v1/health — Health check

User Endpoints

• GET /api/v1/users — List users
• POST /api/v1/users — Create a user
• GET /api/v1/users/:id — Fetch user by ID
• PUT /api/v1/users/:id — Update user
• DELETE /api/v1/users/:id — Delete user
• GET /api/v1/users/:id/profile — User profile data

Testing with curl

Health check

curl http://localhost:3000/api/v1/health# Create a user curl -X POST http://localhost:3000/api/v1/users
-H “Content-Type: application/json”
-d ’{“name”:“Alice”,“email”:“alice@example.com”,“age”:30}‘You can also run all unit tests with:

cargo test

Logging & Observability

The app uses tracing for structured logs.

APP_LOGGING__JSON_FORMAT=true cargo runEach request includes a unique request ID, making debugging and tracing in production easy.

Production-Ready From the Start

This project was built with deployment and maintainability in mind.

Scalability

• Stateless design — ready for Kubernetes or Docker Swarm
• Repository pattern — database agnostic

Monitoring

• Health checks
• Per-request logs with trace IDs
• Configurable logging levels

Security

• Input validation
• CORS support
• Ready to integrate auth layers like JWT or OAuth

Next Steps for You

Want to extend this project? Here are some great directions:

• Integrate a database (PostgreSQL + SQLx or SeaORM)
• Add authentication (JWT, OAuth2)
• Dockerize the app
• Add metrics (Prometheus + Grafana)
• API docs with Swagger/OpenAPI (e.g., utoipa)
• Add background jobs or message queues
• Set up CI/CD pipelines

Rust is no longer just for system-level work — it’s becoming a real contender for backend web development. With this project, you get a battle-tested foundation for building reliable, performant web APIs in Rust.

Start with rust-http-example-server, and go build something awesome.