getGenesisHash

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参数

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响应

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代码示例

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基本请求

curl https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY -X POST -H "Content-Type: application/json" -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getGenesisHash"
}'

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使用 web3.js

import { Connection } from '@solana/web3.js';

const connection = new Connection('https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY');

// Get genesis hash
const genesisHash = await connection.getGenesisHash();
console.log('Genesis hash:', genesisHash);

// Verify cluster
async function verifyCluster(expectedHash: string) {
  const actualHash = await connection.getGenesisHash();
  if (actualHash !== expectedHash) {
    throw new Error(`Connected to wrong cluster. Expected ${expectedHash}, got ${actualHash}`);
  }
  console.log('Connected to correct cluster');
}

​

注意事项

1. 返回集群的创世哈希
2. 创世哈希对于每个集群是唯一的
3. 可用于验证连接到了哪个集群
4. 哈希以 base-58 编码
5. 响应是即时的，因为它从当前状态读取

​

最佳实践

1. 使用此方法验证集群连接
2. 缓存结果以减少 RPC 负载
3. 与已知的不同集群创世哈希进行比较
4. 结合其他集群验证方法使用
5. 适当处理网络错误

​

常见错误

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用例

1. 集群验证
   const CLUSTER_HASHES = {
     mainnet: '5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d',
     testnet: '4uhcVJyU9pJkvQyS88uRDiswHXSCkY3zQawwpjk2NsNY',
     devnet: 'EtWTRABZaYq6iMfeYKouRu166VU2xqa1wcaWoxPkrZBG'
   };
   
   async function verifyClusterConnection(expectedCluster: keyof typeof CLUSTER_HASHES) {
     const genesisHash = await connection.getGenesisHash();
     const expectedHash = CLUSTER_HASHES[expectedCluster];
     
     if (genesisHash !== expectedHash) {
       throw new Error(`Connected to wrong cluster. Expected ${expectedCluster} (${expectedHash}), got ${genesisHash}`);
     }
     
     return {
       cluster: expectedCluster,
       genesisHash,
       verified: true
     };
   }
   
2. 集群检测
   async function detectCluster() {
     const genesisHash = await connection.getGenesisHash();
     
     for (const [cluster, hash] of Object.entries(CLUSTER_HASHES)) {
       if (hash === genesisHash) {
         return cluster;
       }
     }
     
     throw new Error('Unknown cluster');
   }
   
3. 网络配置
   interface NetworkConfig {
     cluster: string;
     genesisHash: string;
     rpcEndpoint: string;
     wsEndpoint: string;
   }
   
   async function configureNetwork(endpoint: string): Promise<NetworkConfig> {
     const connection = new Connection(endpoint);
     const genesisHash = await connection.getGenesisHash();
     const cluster = await detectCluster();
     
     return {
       cluster,
       genesisHash,
       rpcEndpoint: endpoint,
       wsEndpoint: endpoint.replace('http', 'ws')
     };
   }