Cách sử dụng getLeaderSchedule

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

// Replace <api-key> with your Helius API key
const { Connection } = require('@solana/web3.js');

async function fetchCurrentLeaderSchedule() {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  try {
    const leaderSchedule = await connection.getLeaderSchedule(); // Fetches for current epoch by default
    if (leaderSchedule) {
      console.log('Leader Schedule for Current Epoch:');
      for (const [validatorIdentity, slots] of Object.entries(leaderSchedule)) {
        console.log(`  Validator: ${validatorIdentity}`);
        console.log(`    Slots (relative to epoch start): ${slots.join(', ')}`);
      }
    } else {
      console.log('Leader schedule for the current epoch not found or not yet available.');
    }
    // console.log(JSON.stringify(leaderSchedule, null, 2));
  } catch (error) {
    console.error('Error fetching leader schedule:', error);
  }
}

fetchCurrentLeaderSchedule();

# Replace <api-key> with your Helius API key
# Replace VALIDATOR_PUBKEY with an actual validator identity public key
curl https://mainnet.helius-rpc.com/?api-key=<api-key> -X POST -H "Content-Type: application/json" -d \
  '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getLeaderSchedule",
    "params": [
      200000,
      { "identity": "VALIDATOR_PUBKEY" }
    ]
  }'

// Replace <api-key> with your Helius API key
// Replace VALIDATOR_PUBKEY with an actual validator identity public key
const { Connection, PublicKey } = require('@solana/web3.js');

async function fetchValidatorEpochSchedule() {
  const connection = new Connection('https://mainnet.helius-rpc.com/?api-key=<api-key>');
  const targetSlot = 200000;
  const validatorIdentity = 'VALIDATOR_PUBKEY'; // e.g., 'Vote111111111111111111111111111111111111111'

  try {
    const leaderSchedule = await connection.getLeaderSchedule(targetSlot, { identity: validatorIdentity });
    if (leaderSchedule && leaderSchedule[validatorIdentity]) {
      console.log(`Leader Schedule for Validator ${validatorIdentity} in epoch of slot ${targetSlot}:`);
      console.log(`  Slots (relative to epoch start): ${leaderSchedule[validatorIdentity].join(', ')}`);
    } else {
      console.log(`No leader slots found for validator ${validatorIdentity} in epoch of slot ${targetSlot}, or schedule not available.`);
    }
    // console.log(JSON.stringify(leaderSchedule, null, 2));
  } catch (error) {
    console.error('Error fetching validator leader schedule:', error);
  }
}

fetchValidatorEpochSchedule();