Trait SyncRule 

pub trait SyncRule: Send + Sync {
    // Required method
    fn validate(&self, field_name: &str, value: &Value) -> Result<(), String>;
}

A synchronous custom validation rule, dispatched by name via the "purifyAs": "<rule_name>" field metadata key.

Register instances on a Purifier with Purifier::register_rule.

Required Methods

fn validate(&self, field_name: &str, value: &Value) -> Result<(), String>

Implementors