ファンジブルトークンをバーンする

1// To install all the required packages use the following command
2// npm install @metaplex-foundation/mpl-toolbox @metaplex-foundation/umi @metaplex-foundation/umi-bundle-defaults
3import {
4    burnToken,
5    findAssociatedTokenPda,
6} from '@metaplex-foundation/mpl-toolbox';
7import {
8    keypairIdentity,
9    publicKey,
10} from '@metaplex-foundation/umi';
11import { createUmi } from '@metaplex-foundation/umi-bundle-defaults';
12import { readFileSync } from 'fs';
13
14// Initialize Umi with Devnet endpoint
15const umi = createUmi('https://api.devnet.solana.com')
16
17// Load your wallet/keypair
18const wallet = '<your wallet file path>'
19const secretKey = JSON.parse(readFileSync(wallet, 'utf-8'))
20const keypair = umi.eddsa.createKeypairFromSecretKey(new Uint8Array(secretKey))
21umi.use(keypairIdentity(keypair))
22
23// Your token mint address
24const mintAddress = publicKey('<your token mint address>')
25
26// Find the token account to burn from
27const tokenAccount = findAssociatedTokenPda(umi, {
28  mint: mintAddress,
29  owner: umi.identity.publicKey,
30})
31
32// Burn 100 tokens
33await burnToken(umi, {
34  account: tokenAccount,
35  mint: mintAddress,
36  amount: 100,
37}).sendAndConfirm(umi)
38
39console.log('Burned 100 tokens')
40console.log('Mint:', mintAddress)
41console.log('Token Account:', tokenAccount)