Struct Validator 

pub struct Validator;

Available on crate feature std only.

Validator for ISO 8583 messages and fields

Implementations

impl Validator

pub fn validate_pan(pan: &str) -> bool

Validate Primary Account Number (PAN) using Luhn algorithm

The Luhn algorithm (mod-10 algorithm) is used to validate credit card numbers.

Algorithm

1. Starting from the rightmost digit (check digit), double every second digit
2. If doubling results in a two-digit number, add the digits
3. Sum all digits
4. If sum is divisible by 10, the number is valid

Example

use iso8583_core::validation::Validator;

assert!(Validator::validate_pan("4111111111111111"));  // Valid test card
assert!(!Validator::validate_pan("4111111111111112")); // Invalid

pub fn validate_field_format(field: Field, value: &FieldValue) -> Result<()>

Validate field format based on field type

pub fn validate_field_value(field: Field, value: &FieldValue) -> Result<()>

Validate specific field values

pub fn validate_required_fields(msg: &ISO8583Message) -> Result<()>

Validate required fields for a message type

pub fn validate_date_mmdd(date: &str) -> bool

Validate date format (MMDD)

pub fn validate_time_hhmmss(time: &str) -> bool

Validate time format (hhmmss)

pub fn validate_currency_code(code: &str) -> bool

Validate currency code (ISO 4217)