fix(cardano-services-client): map nft metadata version to the one specified in metadata

Author: mkazlauskas

packages/cardano-services-client/src/AssetInfoProvider/BlockfrostAssetProvider.ts

@@ -49,7 +49,7 @@ export class BlockfrostAssetProvider extends BlockfrostProvider implements Asset
           : undefined,
         name,
         otherProperties: this.mapNftMetadataOtherProperties(asset.onchain_metadata),
-        version: '1.0'
+        version: this.mapNftMetadataVersion(asset.onchain_metadata)
       };
     } catch (error) {
       this.logger.warn('Failed to parse nft metadata', asset, error);
@@ -84,6 +84,10 @@ export class BlockfrostAssetProvider extends BlockfrostProvider implements Asset
     return '';
   }
 
+  private mapNftMetadataVersion(metadata: Responses['asset']['onchain_metadata']) {
+    return typeof metadata?.version === 'string' ? metadata.version : '1.0';
+  }
+
   private mapNftMetadataOtherProperties(
     metadata: Responses['asset']['onchain_metadata']
   ): Map<string, Cardano.Metadatum> | undefined {

packages/cardano-services-client/test/AssetInfoProvider/BlockfrostAssetProvider.test.ts

@@ -191,5 +191,27 @@ describe('BlockfrostAssetProvider', () => {
 
       expect(response.nftMetadata!.files![0].src).toBe('http://some.png');
     });
+
+    test('version', async () => {
+      mockResponses(request, [
+        [
+          `assets/${mockedAssetId}`,
+          {
+            ...mockedAssetResponse,
+            onchain_metadata: {
+              ...mockedAssetResponse.onchain_metadata,
+              version: '2.0'
+            }
+          }
+        ]
+      ]);
+
+      const response = await provider.getAsset({
+        assetId: mockedAssetId,
+        extraData: { nftMetadata: true }
+      });
+
+      expect(response.nftMetadata!.version).toBe('2.0');
+    });
   });
 });