Trait Validate 

pub trait Validate {
    // Required method
    fn validate(&self) -> Result<(), ValidationErrors>;
}

Types that can be validated field-by-field.

Implement manually or derive with #[derive(Validate)] (requires features = ["macros"]).

Example — manual implementation

use rust_web_server::validate::{Validate, ValidationErrors};

struct Payload { name: String }

impl Validate for Payload {
    fn validate(&self) -> Result<(), ValidationErrors> {
        let mut errors = ValidationErrors::new();
        if self.name.is_empty() { errors.add("name", "must not be empty"); }
        if errors.is_empty() { Ok(()) } else { Err(errors) }
    }
}

Example — derive macro

use rust_web_server::validate::Validate;

#[derive(rust_web_server::Validate)]
struct CreateUser {
    #[validate(length(min = 1, max = 50))]
    name: String,
    #[validate(email)]
    email: String,
    #[validate(range(min = 0, max = 150))]
    age: u8,
}

Supported validators: email, required, url, length(min = N, max = N), range(min = N, max = N).

Required Methods

fn validate(&self) -> Result<(), ValidationErrors>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors