Module fields 

SWIFT MT Message Fields

Purpose

Comprehensive field definitions for all SWIFT MT message types, providing type-safe parsing, validation, and serialization for individual message fields.

Field Architecture

Each field module provides:

• Type-Safe Structures: Strongly-typed field definitions with validation
• Format Compliance: SWIFT User Handbook format specification adherence
• Variant Support: Complex enum fields with multiple format options (e.g., Field50: A/F/K)
• JSON Serialization: Clean JSON output without enum wrapper layers

Field Categories

• Reference Fields: Transaction references, message references (Field 20, 21)
• Amount Fields: Currencies, amounts, exchange rates (Field 32, 33, 36)
• Party Fields: Customer and institution identification (Field 50-59)
• Date/Time Fields: Value dates, execution dates (Field 30, 32A)
• Instruction Fields: Processing instructions and codes (Field 23, 71)
• Information Fields: Remittance and additional information (Field 70, 72)

Field Format Support

All fields support SWIFT format specifications:

• n: Numeric characters (0-9)
• a: Alphabetic characters (A-Z, a-z)
• c: Capital letters (A-Z)
• x: Any character except spaces
• h: Hexadecimal characters (0-9, A-F)
• d: Decimal numbers with precision

Usage Example

use swift_mt_message::fields::{Field20, Field32A, Field50OrderingCustomerAFK, Field59};
use swift_mt_message::SwiftField;

// Parse simple field
let field_20 = Field20::parse("TXN123456")?;

// Parse complex amount field
let field_32a = Field32A::parse("240315USD1000,00")?;

// Parse enum field with variant
let field_50 = Field50OrderingCustomerAFK::parse_with_variant("JOHN DOE\n123 MAIN ST", Some("K"), Some("50"))?;

Re-exports

pub use field11::*;

pub use field12::*;

pub use field13::*;

pub use field19::*;

pub use field20::*;

pub use field21::*;

pub use field23::*;

pub use field25::*;

pub use field26::*;

pub use field28::*;

pub use field30::*;

pub use field32::*;

pub use field33::*;

pub use field34::*;

pub use field36::*;

pub use field37::*;

pub use field50::*;

pub use field51::*;

pub use field52::*;

pub use field53::*;

pub use field54::*;

pub use field55::*;

pub use field56::*;

pub use field57::*;

pub use field58::*;

pub use field59::*;

pub use field60::*;

pub use field61::*;

pub use field62::*;

pub use field64::*;

pub use field65::*;

pub use field70::*;

pub use field71::*;

pub use field72::*;

pub use field75::*;

pub use field76::*;

pub use field77::*;

pub use field79::*;

pub use field86::*;

pub use field90::*;

Modules

field11

Field 11: MT Reference

field12

Field 12: Sub Message Type

field13

Field 13: Time/Date Indication

field19

Field 19: Sum of Amounts

field20

field21

field23

field25

field26

field28

field30

field32

Field 32: Value Date, Currency Code, Amount

field33

field34

field36

field37

field50

Field 50: Ordering Customer

field51

field52

field53

field54

field55

field56

field57

field58

field59

field60

field61

field62

field64

field65

field70

field71

field72

field75

field76

field77

field79

field86

field90

Field 90: Number & Sum