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epcis-models

Type-safe, native Rust representations of GS1 EPCIS 2.0 Core Event Models and Core Business Vocabulary (CBV) standard vocabularies.

Features

Standardized Event Types: Implements structs for all core EPCIS event types:
- ObjectEvent
- AggregationEvent
- TransformationEvent
- AssociationEvent
- TransactionEvent
Flexibility for Custom Vocabularies: Leverages open-ended enum structures via strum-backed CBV bindings, allowing you to easily use either GS1 Standard elements (e.g. StandardBizStep::Receiving) or any Custom URNs/URLs.
Fail-Safe Enforcements: Implements #![deny(unsafe_code)] and strict linting.
Full Serialization: Built on top of serde and serde_json for high-fidelity conversion.

Quick Start

Basic Event Structure

use epcis_models::{
    Action, BizStep, Disposition, EPCISEvent, ObjectEvent,
    StandardBizStep, StandardDisposition,
};
use chrono::Utc;

// Create a standard Object Event
let mut event = ObjectEvent::new(
    Utc::now(),
    "+02:00".to_string(), // Timezone offset
    Action::Observe,
);

// Assign CBV standard business step and disposition
event.biz_step = Some(BizStep::Standard(StandardBizStep::Receiving));
event.disposition = Some(Disposition::Standard(StandardDisposition::InTransit));

// Serialize to JSON
let serialized = serde_json::to_string_pretty(&event).unwrap();
println!("{}", serialized);

Custom vocabularies

use epcis_models::{BizStep, StandardBizStep};

// Can use standard
let standard_step = BizStep::Standard(StandardBizStep::Shipping);

// Or easily fall back to custom URNs/URLs
let custom_step = BizStep::Custom("https://example.com/bizstep/my-special-step".to_string());

License