getTokenSupplyの使用方法

# Replace <TOKEN_MINT_PUBKEY> with the actual mint address
curl -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getTokenSupply",
    "params": [
      "<TOKEN_MINT_PUBKEY>"
    ]
  }' \
  <YOUR_RPC_URL>

# Example with commitment level
curl -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getTokenSupply",
    "params": [
      "<TOKEN_MINT_PUBKEY>",
      { "commitment": "confirmed" }
    ]
  }' \
  <YOUR_RPC_URL>

const { Connection, PublicKey } = require('@solana/web3.js');

async function checkTokenSupply(mintAddress) {
  // Replace with your RPC endpoint
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  const mintPublicKey = new PublicKey(mintAddress);

  try {
    const tokenSupply = await connection.getTokenSupply(mintPublicKey);
    console.log(`Token Supply for Mint ${mintAddress}:`);
    console.log(`  UI Amount: ${tokenSupply.value.uiAmountString}`);
    console.log(`  Raw Amount: ${tokenSupply.value.amount}`);
    console.log(`  Decimals: ${tokenSupply.value.decimals}`);
    // For full details:
    // console.log(JSON.stringify(tokenSupply, null, 2));
  } catch (error) {
    console.error(`Error fetching token supply for mint ${mintAddress}:`, error);
  }
}

// Replace with the actual token mint public key you want to query
const exampleTokenMint = 'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v'; // USDC mint
checkTokenSupply(exampleTokenMint);

// Example with a different mint (e.g., Raydium)
// const raydiumMint = '4k3Dyjzvzp8eMZWUXbBCjEvwSkkk59S5iCNLY3QrkX6R';
// checkTokenSupply(raydiumMint);