getSupply 사용 방법

# Basic Request:
curl -X POST -H "Content-Type: application/json" -d \
  '{"jsonrpc":"2.0","id":1,"method":"getSupply"}' \
  <YOUR_RPC_URL>

# Request with excludeNonCirculatingAccountsList:
curl -X POST -H "Content-Type: application/json" -d \
  '{"jsonrpc":"2.0","id":1,"method":"getSupply", "params": [{"excludeNonCirculatingAccountsList": true}]}' \
  <YOUR_RPC_URL>

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

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

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

  try {
    const supplyInfo = await connection.getSupply();
    console.log('Supply Information:', supplyInfo.value);
    console.log('Total SOL:', supplyInfo.value.total / 1_000_000_000); // Convert lamports to SOL
    console.log('Circulating SOL:', supplyInfo.value.circulating / 1_000_000_000);
    console.log('Non-Circulating SOL:', supplyInfo.value.nonCirculating / 1_000_000_000);

    if (supplyInfo.value.nonCirculatingAccounts) {
      console.log('Non-circulating accounts count:', supplyInfo.value.nonCirculatingAccounts.length);
    }

    // Example with options
    const supplyInfoWithoutAccountsList = await connection.getSupply({
      commitment: 'finalized',
      excludeNonCirculatingAccountsList: true,
    });
    console.log('\nSupply Information (excluding non-circulating accounts list):');
    console.log('Total SOL:', supplyInfoWithoutAccountsList.value.total / 1_000_000_000);
    console.log('Circulating SOL:', supplyInfoWithoutAccountsList.value.circulating / 1_000_000_000);

  } catch (error) {
    console.error('Error getting supply information:', error);
  }
}

getNetworkSupply();