add mpl core transfer support (#235)

Author: 0xShuk

components/SendNft.tsx

@@ -151,11 +151,14 @@ const SendNft = ({
             connection,
             fromOwner,
             toOwner,
-            nftMint,
+            nft,
             fromOwner,
             nativeTreasury,
           )
 
+          if (!transferIx)
+            throw new Error('failed to create transfer instruction')
+
           return {
             serializedInstruction: serializeInstructionToBase64(transferIx),
             isValid: true,

utils/metaplex.ts

@@ -1,15 +1,15 @@
+import { DasNftObject } from '@hooks/queries/digitalAssets'
 import { fetchNFTbyMint } from '@hooks/queries/nft'
 import { Metaplex } from '@metaplex-foundation/js'
-import { TokenStandard } from '@metaplex-foundation/mpl-token-metadata'
-import { Connection, PublicKey } from '@solana/web3.js'
+import { Connection, PublicKey, TransactionInstruction } from '@solana/web3.js'
 
 export const createIx_transferNft = async (
   connection: Connection,
   fromOwner: PublicKey,
   toOwner: PublicKey,
-  mint: PublicKey,
+  nft: DasNftObject,
   authority: PublicKey,
-  payer: PublicKey,
+  payer: PublicKey
 ) => {
   const metaplex = new Metaplex(
     connection,
@@ -22,6 +22,8 @@ export const createIx_transferNft = async (
   //metaplex.identity = () => ({ publicKey: fromOwner } as any) // you need to do this to set payer and authority. I love OOP!!
   // except the payer might not be the same person. great!
 
+  const mint = new PublicKey(nft.id);
+  const MPL_CORE_PROGRAM_ID = new PublicKey('CoREENxT6tW1HoK8ypY1SxRMZTcVPm7R94rH4PZNhX7d');
   try {
     const nft = await fetchNFTbyMint(connection, mint)
     if (!nft.result) throw 'failed to fetch nft'
@@ -46,24 +48,44 @@ export const createIx_transferNft = async (
     ix.keys[9].pubkey = authority
     ix.keys[10].pubkey = payer
     return ix
-  } catch {
-    const ix = metaplex
-      .nfts()
-      .builders()
-      .transfer({
-        nftOrSft: {
-          address: mint,
-          tokenStandard: TokenStandard.NonFungible,
-        },
-        authorizationDetails: undefined,
-        toOwner,
-        fromOwner,
-      })
-      .getInstructions()[0]
-    
-    ix.keys[9].pubkey = authority
-    ix.keys[10].pubkey = payer
-    
-    return ix
+  } catch (error) {
+    if (nft.interface === 'MplCoreAsset') {
+      // fallback for mpl core assets
+      const ix: TransactionInstruction = {
+        keys: [
+          { pubkey: mint, isSigner: false, isWritable: true },
+          {
+            pubkey: new PublicKey(nft.grouping.find((g) => g.group_key === 'collection')!.group_value),
+            isSigner: false,
+            isWritable: false,
+          },
+          { pubkey: fromOwner,
+            isSigner: true,
+            isWritable: true,
+          },
+          {
+            pubkey: MPL_CORE_PROGRAM_ID,
+            isSigner: false,
+            isWritable: false,
+          },
+          { pubkey: toOwner, isSigner: false, isWritable: false },
+          {
+            pubkey: MPL_CORE_PROGRAM_ID,
+            isSigner: false,
+            isWritable: false,
+          },
+          {
+            pubkey: MPL_CORE_PROGRAM_ID,
+            isSigner: false,
+            isWritable: false,
+          },
+        ],
+        programId: MPL_CORE_PROGRAM_ID,
+        data: Buffer.from([14,0])
+      } 
+      return ix;
+    } else {
+      throw new Error('failed to create transfer instruction')
+    }
   }
 }