Crate mx20022_validate 

Schema and business rule validation for ISO 20022 financial messages.

Overview

This crate provides layered validation for ISO 20022 messages:

1. Rule layer (rules) — individual, reusable validators (IBAN, BIC, length, regex pattern).
2. Schema layer (schema) — orchestrates rules against field constraints derived from XSD facets.

Quick start

use mx20022_validate::rules::RuleRegistry;

let registry = RuleRegistry::with_defaults();

// Validate an IBAN
let errors = registry.validate_field(
    "GB82WEST12345698765432",
    "/Document/CdtTrfTxInf/CdtrAcct/Id/IBAN",
    &["IBAN_CHECK"],
);
assert!(errors.is_empty());

// Validate a BIC
let errors = registry.validate_field(
    "AAAAGB2L",
    "/Document/CdtTrfTxInf/CdtrAgt/FinInstnId/BICFI",
    &["BIC_CHECK"],
);
assert!(errors.is_empty());

Re-exports

pub use error::Severity;

pub use error::ValidationError;

pub use error::ValidationResult;

pub use rules::RuleRegistry;

pub use schema::SchemaValidator;

Modules

error

Validation error types for ISO 20022 message validation.

rules

Validation rule registry and built-in rule implementations.

schema

Schema-level validation.

schemes

Payment scheme-specific validation.

typed

Typed validation bridge.