getMinimumBalanceForRentExemption 사용 방법

# Replace <api-key> with your Helius API key
curl https://mainnet.helius-rpc.com/?api-key=<api-key> -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getMinimumBalanceForRentExemption",
    "params": [
      165
    ]
  }'

// Replace <api-key> with your Helius API key
const { Connection } = require('@solana/web3.js');

async function fetchMinimumBalanceForRentExemption() {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  const dataLength = 165; // Data length for a typical SPL token account

  try {
    const lamports = await connection.getMinimumBalanceForRentExemption(dataLength);
    console.log(`Minimum lamports for rent exemption (data length ${dataLength} bytes): ${lamports} SOL: (${lamports / 1_000_000_000})`);
  } catch (error) {
    console.error(`Error fetching minimum balance for rent exemption for data length ${dataLength}:`, error);
  }
}

fetchMinimumBalanceForRentExemption();

# Replace <api-key> with your Helius API key
curl https://mainnet.helius-rpc.com/?api-key=<api-key> -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getMinimumBalanceForRentExemption",
    "params": [
      0
    ]
  }'

// Replace <api-key> with your Helius API key
const { Connection } = require('@solana/web3.js');

async function fetchMinimumBalanceForZeroByteAccount() {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  const dataLength = 0;

  try {
    const lamports = await connection.getMinimumBalanceForRentExemption(dataLength);
    console.log(`Minimum lamports for rent exemption (data length ${dataLength} bytes): ${lamports} SOL: (${lamports / 1_000_000_000})`);
  } catch (error) {
    console.error(`Error fetching minimum balance for rent exemption for data length ${dataLength}:`, error);
  }
}

fetchMinimumBalanceForZeroByteAccount();