Module messages 

DDEX Message Types

This module contains implementations for various DDEX message types used in music distribution workflows. The DDEX standard defines several message types for different scenarios in the music supply chain.

Message Types

• NewReleaseMessage (ERN): The primary message type for delivering new releases to music platforms and distributors
• UpdateReleaseMessage: Used to update existing releases with new metadata, resources, or deal information
• PurgeReleaseMessage: For removing releases from distribution

Architecture

Message Types
├── NewReleaseMessage      # Primary release delivery
│   ├── MessageHeader      # Routing and control info
│   ├── ResourceList       # Audio/video resources
│   ├── ReleaseList        # Release metadata
│   └── DealList          # Distribution terms
└── UpdateReleaseMessage   # Release updates
    ├── MessageHeader      # Update control info
    ├── UpdateList        # What to update
    └── Instructions      # How to apply updates

Usage Example

use ddex_builder::messages::*;
use ddex_builder::{Builder, BuildRequest};
 
// Create a new release message
let mut builder = Builder::new();
let request = BuildRequest {
    message_type: MessageType::NewRelease,
    // ... other fields
};
 
let result = builder.build_internal(&request)?;

Message Validation

All message types include:

• Schema validation against DDEX XSD
• Business rule validation
• Territory and rights validation
• Resource reference integrity checks

Re-exports

pub use update_release::*;

Modules

update_release

UpdateReleaseMessage implementation for DDEX Builder