getBlocksWithLimitを使用する方法

curl https://mainnet.helius-rpc.com/?api-key=<api-key> -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getBlocksWithLimit",
    "params": [
      280000000, 
      5 
    ]
  }'

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

async function getBlocksWithLimitExample(startSlot, limit) {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  try {
    const blocks = await connection.getBlocksWithLimit(startSlot, limit);
    console.log(`Up to ${limit} confirmed blocks starting from slot ${startSlot}:`, blocks);
  } catch (error) {
    console.error('Error fetching blocks with limit:', error);
  }
}

// Example usage:
const startSlot = 280000000;
const limit = 5;
getBlocksWithLimitExample(startSlot, limit);

curl https://mainnet.helius-rpc.com/?api-key=<api-key> -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getBlocksWithLimit",
    "params": [
      290000000,
      3,
      { "commitment": "confirmed" }
    ]
  }'

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

async function getBlocksWithLimitAndCommitment(startSlot, limit) {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  try {
    const blocks = await connection.getBlocksWithLimit(startSlot, limit, { commitment: 'confirmed' });
    console.log(`Up to ${limit} confirmed blocks (with 'confirmed' commitment) starting from slot ${startSlot}:`, blocks);
  } catch (error) {
    console.error('Error fetching blocks with limit and commitment:', error);
  }
}

// Example usage:
const commitStartSlot = 290000000;
const commitLimit = 3;
getBlocksWithLimitAndCommitment(commitStartSlot, commitLimit);