如何通过“@solana/web3.js”传输自定义令牌

问题描述

我想使用 solana web3.js 发送除 sol 之外的已部署令牌，但我不知道如何发送。官方文档找了好久都没找到。如果您有这方面的任何信息，请告诉我吗？谢谢

解决方法

您需要确保为令牌程序安装 npm 绑定，如下面的导入所示

import * as web3 from "@solana/web3.js";
import * as splToken from "@solana/spl-token";

// Address: 9vpsmXhZYMpvhCKiVoX5U8b1iKpfwJaFpPEEXF7hRm9N
const DEMO_WALLET_SECRET_KEY = new Uint8Array([
  37,21,197,185,105,201,212,148,164,108,251,159,174,252,43,246,225,156,38,203,99,42,244,73,143,34,239,15,222,217,91,132,167,60,17,211,120,243,113,76,127,190,18,121,93,189,55,165,129,196,104,25,157,209,168,149,]);
(async () => {
  // Connect to cluster
  var connection = new web3.Connection(web3.clusterApiUrl("devnet"));
  // Construct wallet keypairs
  var fromWallet = web3.Keypair.fromSecretKey(DEMO_WALLET_SECRET_KEY);
  var toWallet = web3.Keypair.generate();
  // Construct my token class
  var myMint = new web3.PublicKey("My Mint Public Address");
  var myToken = new splToken.Token(
    connection,myMint,splToken.TOKEN_PROGRAM_ID,fromWallet
  );
  // Create associated token accounts for my token if they don't exist yet
  var fromTokenAccount = await myToken.getOrCreateAssociatedAccountInfo(
    fromWallet.publicKey
  )
  var toTokenAccount = await myToken.getOrCreateAssociatedAccountInfo(
    toWallet.publicKey
  )
  // Add token transfer instructions to transaction
  var transaction = new web3.Transaction()
    .add(
      splToken.Token.createTransferInstruction(
        splToken.TOKEN_PROGRAM_ID,fromTokenAccount.address,toTokenAccount.address,fromWallet.publicKey,[],0
      )
    );
  // Sign transaction,broadcast,and confirm
  var signature = await web3.sendAndConfirmTransaction(
    connection,transaction,[fromWallet]
  );
  console.log("SIGNATURE",signature);
  console.log("SUCCESS");
})();