Build a Transaction and Estimate the Gas Fee

In this tutorial, we will guide you through the process of estimating the gas fee for a transaction using the given code snippet. Estimating gas fees is crucial for managing costs while sending transactions on a blockchain network.

Build a transaction and estimate the gas fee

Live Editor

const sdk = new Eniblock({ authConfig: { clientId: "50efd4aa-2aa1-499c-87e2-db089409b818", redirectUrl: window.location.origin + "/docs/", }, storageItems: [{ alias: "LocalStorage", storage: new LocalStorage() }], }); const account = await wallet.account.instantiate("My first account"); // Define the parameters for the transaction, including the recipient's address, the type of cryptocurrency being sent, and the amount. const transferCryptocurrencyParams = { to: "0xBA3839604E9F3a01a52a2FCaF4517250a3a656E5", type: "MATIC", value: "0.1", } // Estimate the gas fee for the transaction using the account object and the transaction parameters. console.log(`Estimating the fees for sending ${transferCryptocurrencyParams.value} ${transferCryptocurrencyParams.type} to ${transferCryptocurrencyParams.to}...`) const { estimatedFees } = await account.buildTransfer(transferCryptocurrencyParams).estimate(); console.log(`Estimated fees: ${estimatedFees} MATIC`);

const sdk = new Eniblock({
  authConfig: {
      clientId: "50efd4aa-2aa1-499c-87e2-db089409b818",
      redirectUrl: window.location.origin + "/docs/",
  },
    storageItems: [{ alias: "LocalStorage", storage: new LocalStorage() }],
});

const account = await wallet.account.instantiate("My first account");
// Define the parameters for the transaction, including the recipient's address, the type of cryptocurrency being sent, and the amount.
const transferCryptocurrencyParams = {
  to: "0xBA3839604E9F3a01a52a2FCaF4517250a3a656E5",
  type: "MATIC",
  value: "0.1",
}

// Estimate the gas fee for the transaction using the account object and the transaction parameters.
console.log(`Estimating the fees for sending ${transferCryptocurrencyParams.value} ${transferCryptocurrencyParams.type} to ${transferCryptocurrencyParams.to}...`)
const { estimatedFees } = await account.buildTransfer(transferCryptocurrencyParams).estimate();
console.log(`Estimated fees: ${estimatedFees} MATIC`);

API References

1. Account.buildTransfer() method
2. TransactionExecutor class
3. TransactionExecutor.estimate() method
4. EstimateResult interface