feat: add fhir metadata (ig, version, canonical, fhirVersions) to generated package.json

Author: quotentiroler

src/generator/index.ts

@@ -370,10 +370,17 @@ export async function generateIntoPackage(packageArchivePath: string, outArchive
     let packageName = path.basename(packageArchivePath, path.extname(packageArchivePath));
     let packageVersion = '1.0.0';
 
+    let fhirMeta: Record<string, unknown> | undefined;
     if (fs.existsSync(originalPackageJsonPath)) {
       const originalPkg = JSON.parse(fs.readFileSync(originalPackageJsonPath, 'utf-8'));
       packageName = originalPkg.name || packageName;
       packageVersion = originalPkg.version || packageVersion;
+      fhirMeta = {
+        ig: originalPkg.name,
+        version: originalPkg.version,
+        ...(originalPkg.canonical && { canonical: originalPkg.canonical }),
+        ...(originalPkg.fhirVersions && { fhirVersions: originalPkg.fhirVersions }),
+      };
     }
 
     const generatedExports: Record<string, { types: string; import: string }> = {
@@ -391,6 +398,7 @@ export async function generateIntoPackage(packageArchivePath: string, outArchive
       scripts: {},
       keywords: ['fhir', 'typescript', 'generated'],
       license: 'MIT',
+      ...(fhirMeta && { fhir: fhirMeta }),
       // fhirpath is required at runtime by validators; keep as peer so host decides version
       peerDependencies: {
         'fhirpath': '^3.0.0 || ^4.0.0'
@@ -570,10 +578,17 @@ export async function generateIntoPackageDirect(
   const originalPackageJsonPath = path.join(extractedRoot, 'package', 'package.json');
   let packageName = path.basename(packageArchivePath, path.extname(packageArchivePath));
   let packageVersion = '1.0.0';
+  let fhirMeta: Record<string, unknown> | undefined;
   if (fs.existsSync(originalPackageJsonPath)) {
     const originalPkg = JSON.parse(fs.readFileSync(originalPackageJsonPath, 'utf-8'));
     packageName = originalPkg.name || packageName;
     packageVersion = originalPkg.version || packageVersion;
+    fhirMeta = {
+      ig: originalPkg.name,
+      version: originalPkg.version,
+      ...(originalPkg.canonical && { canonical: originalPkg.canonical }),
+      ...(originalPkg.fhirVersions && { fhirVersions: originalPkg.fhirVersions }),
+    };
   }
 
   const generatedExports: Record<string, { types: string; import: string }> = {
@@ -591,6 +606,7 @@ export async function generateIntoPackageDirect(
     scripts: {},
     keywords: ['fhir', 'typescript', 'generated'],
     license: 'MIT',
+    ...(fhirMeta && { fhir: fhirMeta }),
     peerDependencies: { 'fhirpath': '^3.0.0 || ^4.0.0' },
     dependencies: { '@types/fhir': '^0.0.41' }
   };

src/test/fhirClientPackaging.test.ts

@@ -106,6 +106,15 @@ describe('FHIR client packaging', () => {
       const pkg = JSON.parse(fs.readFileSync(path.join(generatedDir, 'package.json'), 'utf8'));
       expect(pkg.dependencies['@babelfhir-ts/client-r4']).toBe('^0.2.0');
     });
+
+    it('has fhir metadata with IG provenance', () => {
+      const pkg = JSON.parse(fs.readFileSync(path.join(generatedDir, 'package.json'), 'utf8'));
+      expect(pkg.fhir).toBeDefined();
+      expect(pkg.fhir.ig).toBe('hl7.fhir.uv.ips');
+      expect(pkg.fhir.version).toBe('2.0.0');
+      expect(pkg.fhir.canonical).toBe('http://hl7.org/fhir/uv/ips');
+      expect(pkg.fhir.fhirVersions).toEqual(['4.0.1']);
+    });
   });
 
   describe('Omit<> profile detection', () => {