Latest from Ultimo
Tutorials, release notes, architecture deep-dives, and comparisons for the modern Rust web framework.
Ultimo v0.6.0: What a Security Review Found (and a SemVer Blind Spot We Didn't Expect)
Ultimo v0.6.0 fixes a session logout bug, two memory-exhaustion DoS vectors, an error-message info leak, adds a WebSocket Origin allow-list against Cross-Site WebSocket Hijacking, patches a JWT CVE and a SQLx RUSTSEC advisory — and exposes a real gap in cargo-semver-checks along the way.
Build a Real-Time Chat Application with Rust WebSockets and Ultimo
A complete tutorial for building a production-quality real-time chat server in Rust using Ultimo's WebSocket pub/sub system — from connection handling through rooms, presence, and deployment.
Why Rust and Ultimo Are Ideal for Latency-Sensitive Backends: Finance, Bots, and Realtime Services
An in-depth look at building latency-sensitive backend systems — trading bots, financial APIs, real-time notification pipelines — in Rust with Ultimo. Covers runtime model, tail latency, type safety guarantees, and architecture patterns.
Rust vs Node.js for Backend APIs in 2026: An Honest Comparison
A detailed comparison of Rust and Node.js for backend API development in 2026 — covering performance characteristics, developer experience, type safety, deployment, ecosystem maturity, and when to choose each.
JSON-RPC vs REST: Why Type-Safe APIs Win in Complex Applications
A technical comparison of JSON-RPC and REST API styles — when each shines, where REST breaks down in complex applications, and how Ultimo's hybrid approach gives you both with automatic TypeScript client generation.
Session Authentication in Rust: Cookies, Sessions, and CSRF Protection with Ultimo
A practical guide to implementing session-based authentication in Rust — covering cookie configuration, session storage, CSRF protection, login/logout flows, and security best practices using Ultimo's built-in session middleware.
Build Your First API with Ultimo in 10 Minutes
A step-by-step tutorial to create a REST API with Ultimo, add JSON-RPC endpoints, and generate a fully typed TypeScript client — from cargo init to working frontend.
Introducing Ultimo v0.5.0: Derive Your TypeScript Types from Rust
Ultimo v0.5.0 ships automatic TypeScript type derivation via #[derive(TS)], static file serving, response compression, and breaking RPC improvements that eliminate manual type maintenance forever.
Ultimo vs Axum: A Practical Comparison for 2026
An honest feature-by-feature comparison of Ultimo and Axum — covering performance, developer experience, type safety, ecosystem, and when to choose each Rust web framework.
How TypeScript Codegen Works in Ultimo
A deep dive into Ultimo's TypeScript client generation pipeline — from #[derive(TS)] on Rust structs through the RPC registry to a fully typed, zero-dependency TypeScript client.
Migrating from Axum to Ultimo: A Practical Guide
A hands-on guide to migrating your Axum application to Ultimo — concept mapping, side-by-side code translations, gradual adoption strategy, and what you gain (and lose) in the process.