如何使用 getClusterNodes

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

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

async function getNodesInCluster() {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  try {
    const clusterNodes = await connection.getClusterNodes();
    console.log(`Found ${clusterNodes.length} cluster nodes:`);
    clusterNodes.forEach(node => {
      console.log(
        `  PubKey: ${node.pubkey}, Gossip: ${node.gossip || 'N/A'}, RPC: ${node.rpc || 'N/A'}, Version: ${node.version || 'N/A'}`
      );
    });
    // For full details:
    // console.log(JSON.stringify(clusterNodes, null, 2));
  } catch (error) {
    console.error('Error fetching cluster nodes:', error);
  }
}

getNodesInCluster();