如何使用 getHighestSnapshotSlot

curl https://mainnet.helius-rpc.com/?api-key=<api-key> -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getHighestSnapshotSlot"
  }'

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

async function logHighestSnapshotSlot() {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  try {
    const snapshotSlotInfo = await connection.getHighestSnapshotSlot();
    console.log('Highest Snapshot Slot Information:');
    console.log(`  Full Snapshot Slot: ${snapshotSlotInfo.full}`);
    console.log(`  Incremental Snapshot Slot: ${snapshotSlotInfo.incremental !== null ? snapshotSlotInfo.incremental : 'N/A'}`);
  } catch (error) {
    console.error('Error fetching highest snapshot slot:', error);
  }
}

logHighestSnapshotSlot();