getMinimumBalanceForRentExemption

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": "getMinimumBalanceForRentExemption",
  "params": [1000]
}'

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

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

// Get minimum balance for rent exemption
const dataLength = 1000; // bytes
const minBalance = await connection.getMinimumBalanceForRentExemption(dataLength);
console.log('Minimum balance:', minBalance);

// Calculate account creation cost
async function calculateAccountCost(
  dataLength: number,
  owner: string
) {
  const minBalance = await connection.getMinimumBalanceForRentExemption(dataLength);
  const rentExempt = minBalance;
  
  return {
    dataLength,
    minBalance,
    rentExempt,
    owner
  };
}

// Check if account has sufficient balance
async function hasSufficientBalance(
  account: string,
  dataLength: number
) {
  const [balance, minBalance] = await Promise.all([
    connection.getBalance(account),
    connection.getMinimumBalanceForRentExemption(dataLength)
  ]);
  
  return {
    account,
    currentBalance: balance,
    requiredBalance: minBalance,
    hasSufficientBalance: balance >= minBalance,
    difference: balance - minBalance
  };
}