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Jak obliczyć koszt utworzenia konta

Keeping accounts alive on Solana incurs a storage cost called rent. For the calculation, you need to consider the amount of data you intend to store in the account. Rent can be reclaimed in full if the account is closed.

calculate-rent.ts

import { Connection, clusterApiUrl } from "@solana/web3.js";
 
(async () => {
  const connection = new Connection(clusterApiUrl("devnet"), "confirmed");
 
  // length of data in bytes in the account to calculate rent for
  const dataLength = 1500;
  const rentExemptionAmount =
    await connection.getMinimumBalanceForRentExemption(dataLength);
  console.log({
    rentExemptionAmount,
  });
})();