skp-validator

The most advanced, flexible, and high-performance validation library for Rust.

Features

• Declarative: Use attributes on your structs.
• Modern: Fully optimized for Rust 2024 Edition.
• Fast: Capable of validating millions of fields per second.
• Extensible: Add custom rules and framework adapters easily.

For full documentation and examples, please visit the main repository.

lib.rs:

skp-validator

The most advanced, flexible and modular validation library for Rust.

Features

• Declarative Validation: Use derive macros with powerful attributes
• 30+ Built-in Validators: email, url, ip, uuid, phone, credit_card, etc.
• Nested Validation: Automatic validation of nested structs
• Collection Validation: Dive into Vec, HashMap, Option
• Field Dependencies: Conditional validation based on other fields
• Field Transformations: uppercase, lowercase, trim
• Structured Errors: Nested, JSON-serializable error format
• Runtime JSON Validation: Validate JSON without deserialization
• i18n Support: Localized error messages
• Framework Adapters: Axum, Actix integration

Quick Start

use skp_validator::Validate;

#[derive(Validate)]
struct User {
    #[validate(required, length(min = 3, max = 50))]
    name: String,

    #[validate(required, email)]
    email: String,

    #[validate(range(min = 18, max = 120))]
    age: Option<u32>,

    #[validate(nested)]
    address: Address,

    #[validate(dive, length(min = 1, max = 20))]
    tags: Vec<String>,
}

let user = User { /* ... */ };
match user.validate() {
    Ok(()) => println!("Valid!"),
    Err(errors) => println!("Errors: {}", errors),
}