nutype
A Rust procedural macro for creating newtypes with built-in sanitization and validation guarantees.
What is nutype?
Nutype is a Rust procedural macro that extends the newtype pattern by adding sanitization and validation constraints. It generates code that enforces these constraints at compile time and runtime, making it impossible to create invalid values—even during deserialization with serde. This helps ensure domain invariants are always upheld and reduces runtime errors.
Rust developers who use the newtype pattern to enforce business logic correctness, particularly those building domain-driven design (DDD) models or applications requiring strict data validation and sanitization.
Developers choose Nutype because it leverages Rust's type system to make invalid states unrepresentable, providing compile-time guarantees while seamlessly integrating with serde for serialization. Its unique selling point is combining sanitization (e.g., trimming strings) and validation (e.g., length limits) with automatic code generation for robust, type-safe newtypes.
Overview
Rust newtype with guarantees 🇺🇦 🦀
Use Cases
Best For
- Enforcing business logic correctness in domain-driven design (DDD) models with type-safe invariants.
Related Projects
Found a gem we're missing?
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
