added initialize metadata action

token/js/package.json

@@ -55,13 +55,14 @@
     "dependencies": {
         "@solana/buffer-layout": "^4.0.0",
         "@solana/buffer-layout-utils": "^0.2.0",
+        "@solana/spl-token-metadata": "^0.1.0",
         "buffer": "^6.0.3"
     },
     "devDependencies": {
         "@solana/spl-memo": "^0.2.2",
         "@solana/web3.js": "^1.47.4",
-        "@types/chai-as-promised": "^7.1.4",
         "@types/chai": "^4.3.3",
+        "@types/chai-as-promised": "^7.1.4",
         "@types/mocha": "^10.0.0",
         "@types/node": "^20.1.1",
         "@types/node-fetch": "^2.6.2",
@@ -80,8 +81,8 @@
         "process": "^0.11.10",
         "shx": "^0.3.4",
         "start-server-and-test": "^2.0.0",
-        "tslib": "^2.3.1",
         "ts-node": "^10.9.1",
+        "tslib": "^2.3.1",
         "typedoc": "^0.25.0",
         "typescript": "^5.0.4"
     }

token/js/src/actions/index.ts

@@ -13,6 +13,7 @@ export * from './createNativeMint.js';
 export * from './createWrappedNativeAccount.js';
 export * from './freezeAccount.js';
 export * from './getOrCreateAssociatedTokenAccount.js';
+export * from "./initializeMetadata.js";
 export * from './mintTo.js';
 export * from './mintToChecked.js';
 export * from './recoverNested.js';

token/js/src/actions/initializeMetadata.ts

@@ -0,0 +1,56 @@
+import type { ConfirmOptions, Connection, PublicKey, Signer, TransactionSignature } from '@solana/web3.js';
+import { createInitializeInstruction } from '@solana/spl-token-metadata';
+import { sendAndConfirmTransaction, Transaction } from '@solana/web3.js';
+
+import { TOKEN_2022_PROGRAM_ID } from '../constants.js';
+import { getSigners } from './internal.js';
+
+/**
+ * Initializes a TLV entry with the basic token-metadata fields.
+ *
+ * @param connection       Connection to use
+ * @param payer            Payer of the transaction fees
+ * @param metadata         Metadata account
+ * @param updateAuthority  Update Authority
+ * @param mint             Mint Account
+ * @param mintAuthority    Mint Authority
+ * @param name             Longer name of token
+ * @param symbol           Shortened symbol of token
+ * @param uri              URI pointing to more metadata (image, video, etc)
+ * @param multiSigners     Signing accounts if `authority` is a multisig
+ * @param confirmOptions   Options for confirming the transaction
+ * @param programId        SPL Token program account
+ *
+ * @return Signature of the confirmed transaction
+ */
+export async function initializeMetadata(
+    connection: Connection,
+    payer: Signer,
+    metadata: PublicKey,
+    updateAuthority: PublicKey,
+    mint: PublicKey,
+    mintAuthority: PublicKey | Signer,
+    name: string,
+    symbol: string,
+    uri: string,
+    multiSigners: Signer[] = [],
+    confirmOptions?: ConfirmOptions,
+    programId = TOKEN_2022_PROGRAM_ID
+): Promise<TransactionSignature> {
+    const [mintAuthorityPublicKey, signers] = getSigners(mintAuthority, multiSigners);
+
+    const transaction = new Transaction().add(
+        createInitializeInstruction({
+            programId,
+            metadata,
+            updateAuthority,
+            mint,
+            mintAuthority: mintAuthorityPublicKey,
+            name,
+            symbol,
+            uri,
+        })
+    );
+
+    return await sendAndConfirmTransaction(connection, transaction, [payer, ...signers], confirmOptions);
+}

token/js/src/instructions/index.ts

@@ -1,3 +1,11 @@
+export {
+    createInitializeInstruction,
+    createUpdateFieldInstruction,
+    createRemoveKeyInstruction,
+    createUpdateAuthorityInstruction,
+    createEmitInstruction,
+} from '@solana/spl-token-metadata';
+
 export * from './associatedTokenAccount.js';
 export * from './decode.js';
 export * from './types.js';