Peppol BIS Billing 3.0 & EN 16931 E-Invoice Engine — Rust Client Crate

Sub-5ms Peppol BIS Billing 3.0 & EN 16931 e-invoice validation and XML-to-JSON parsing supporting OASIS UBL 2.1 and UN/CEFACT CII.

Official high-performance, asynchronous Rust client library for Peppol BIS Billing 3.0 & EN 16931 E-Invoice Engine, built on the Stanza Micro-API Network. Uses pure Rustls TLS (zero C/OpenSSL dependencies) and Tokio for maximum concurrency and safety.

• 🌐 Online Interactive Sandbox: Test your inputs live
• 📚 API Reference & Schemas: View documentation on Stanza
• ⚡ Platform Overview: Explore the Stanza Developer Network

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📦 Installation

Add to your Cargo.toml:

[dependencies]
stanzaapi-peppol-validator = "1.0.0"
tokio = { version = "1.0", features = ["full"] }

Or use cargo add:

cargo add stanzaapi-peppol-validator

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🚀 Quickstart

use stanzaapi_peppol_validator::PeppolValidatorClient;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Reads STANZA_API_KEY from environment automatically
    // Public edge default: https://api.stanzaapi.com/peppol-validator
    let client = PeppolValidatorClient::new(None, None);

    let response = client.validate("<Invoice xmlns=\"urn:oasis:names:specification:ubl:schema:xsd:Invoice-2\">...</Invoice>").await?;

    if response.success {
        println!("Verification Success: {:?}", response.data);
    } else {
        eprintln!("Validation Error: {:?}", response.error);
    }

    Ok(())
}

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📄 Example Response

{
  "success": true,
  "data": {
    "valid": true,
    "profile": "urn:fdc:peppol.eu:2017:poacc:billing:01:1.0",
    "invoice_number": "INV-2026-001"
  }
}

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🔗 Useful Links

• Peppol BIS Billing 3.0 & EN 16931 E-Invoice Engine Interactive Sandbox
• Stanza Developer Directory
• Source Code & Issue Tracker

📄 License

MIT © Stanza — Powered by Stanza.