My Journey Learning Async Rust

I started with a simple question: “Async Rust?”

Over the past session, I went from zero to building a complete asynchronous Rust application. I began by understanding the basics — how async/await works, why we need a runtime like Tokio, and how to run concurrent tasks without blocking threads.

I then built a concurrent HTTP client using Reqwest, learning how to fetch multiple URLs in parallel, handle headers, and parse JSON responses with Serde.

Next, I created a full web server using Axum, one of the most popular modern Rust web frameworks. I implemented routes, path parameters, and JSON APIs.

Finally, I integrated a SQLite database with SQLx, adding persistent storage, automatic table creation, and full CRUD operations (GET and POST users).

What I achieved:

  • A fast, concurrent HTTP client
  • A production-ready async web server
  • Database integration with compile-time checked queries
  • Clean, safe, and scalable Rust code

This journey gave me a strong foundation in modern async Rust development.


Directions Going Forward

Here are several exciting paths I can continue with:

  1. Add Authentication (JWT, sessions, password hashing)
  2. Frontend Integration (HTML templates with Askama/Maud or a separate React/Vue frontend)
  3. Advanced Features (WebSockets, rate limiting, file uploads, background jobs)
  4. Deployment (Docker, Railway, Fly.io, or systemd)
  5. CLI Tool using the same async foundations
  6. Real-time Application (chat, notifications)
  7. Testing & Production Readiness (unit tests, logging, monitoring)