feat(core): add support for NMKR datum NFTs

input-output-hk · May 8, 2024 · 7433747 · 7433747
1 parent e7867d3
commit 7433747
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Showing 2 changed files with 18 additions and 2 deletions.
diff --git a/packages/core/src/Asset/NftMetadata/fromPlutusData.ts b/packages/core/src/Asset/NftMetadata/fromPlutusData.ts
@@ -92,8 +92,9 @@ export const fromPlutusData = (
   parentLogger: Logger
 ): NftMetadata | null => {
   const logger = contextLogger(parentLogger, 'NftMetadata.fromPlutusData');
-  if (!isConstrPlutusData(plutusData) || plutusData.constructor !== 0n || plutusData.fields.items.length < 3) {
-    logger.debug('Invalid PlutusData: expecting ConstrPlutusData with 0th constructor and 3 items');
+  if (!isConstrPlutusData(plutusData) || plutusData.constructor !== 0n || plutusData.fields.items.length < 2) {
+    // Actually CIP-68 requires exactly 3 items, but it is not how NMKR mints it
+    logger.debug('Invalid PlutusData: expecting ConstrPlutusData with 0th constructor and 2 items');
     return null;
   }
 

diff --git a/packages/core/test/Asset/NftMetadata/fromPlutusData.test.ts b/packages/core/test/Asset/NftMetadata/fromPlutusData.test.ts
@@ -318,4 +318,19 @@ describe('NftMetadata.fromPlutusData', () => {
     expect(typeof nftMetadata.otherProperties?.get('og')).toBe('bigint');
     expect(nftMetadata.files).toBeUndefined();
   });
+
+  it('can convert NMKR datum', () => {
+    const nmkrDatum = HexBlob(
+      'd8799fa5446e616d654b6e6d6b724e4654386d617945696d6167655835697066733a2f2f516d4e77566157314b655471424a4b4b6963355553443165424c41315a48396b596b455674535952423646314d64496d656469615479706549696d6167652f706e674b6465736372697074696f6e404566696c65739fa3496d656469615479706549696d6167652f706e67446e616d654b6e6d6b724e4654386d6179437372635835697066733a2f2f516d4e77566157314b655471424a4b4b6963355553443165424c41315a48396b596b455674535952423646314d64ff01ff'
+    );
+    const datum = Serialization.Datum.newInlineData(
+      Serialization.PlutusData.fromCbor(nmkrDatum)
+    ).toCore() as Cardano.PlutusData;
+
+    const nftMetadata = Asset.NftMetadata.fromPlutusData(datum, logger)!;
+
+    expect(nftMetadata).toMatchObject({
+      name: 'nmkrNFT8may'
+    });
+  });
 });