Installation

npm install @younndai/domains

1. Access Bundled Domains

The package ships with all 31 official yon.* domains. No network required:

import { getBundledDomain, listBundledDomains } from "@younndai/domains";

const domains = listBundledDomains();
// → ['yon.health', 'yon.fintech', 'yon.logistics', ...] (31 total)

const health = getBundledDomain("yon.health");
console.log(health?.records.VITALS.fields);

2. Validate Data

import { validateRecord } from "@younndai/domains";

const result = await validateRecord("yon.fintech", "TXN", {
  id: "txn-001",
  amount: 1500.5,
  currency: "USD",
});

if (result.valid) {
  console.log("✓ Valid transaction record");
} else {
  result.errors.forEach((e) => console.error(`✗ ${e.field}: ${e.message}`));
}

3. Resolve Any Domain

The resolver checks Bundled (T1) → Local (T3) → Remote (T2):

import { resolveDomain } from "@younndai/domains";

const health = await resolveDomain("yon.health"); // bundled (instant)
const custom = await resolveDomain("com.abcde-shipping"); // remote (cached)
const offline = await resolveDomain("yon.health", { offline: true });

4. Export to JSON Schema

import { exportJSONSchemas } from "@younndai/domains/json-schema";

const schemas = await exportJSONSchemas("yon.health");
// Each key is a record tag, value is JSON Schema draft-07

Next Steps