In this section, you will learn how to make a simple Hedera account. Hedera accounts are the entry point by which you can interact with the Hedera APIs. Accounts hold a balance of HBAR used to pay for API calls for the various transaction and query types.
//client := hedera.ClientForTestnet()
//client.SetOperator(myAccountId, myPrivateKey)
//-----------------------<enter code below>--------------------------------------
//Generate new keys for the account you will create
newAccountPrivateKey, err := hedera.PrivateKeyGenerateEd25519()
if err != nil {
panic(err)
}
newAccountPublicKey := newAccountPrivateKey.PublicKey()
Step 3: Create a new account
Create a new account using AccountCreateTransaction(). Use the public key created in the previous step to enter in the setKey() field. This will associate the key pair generated in the previous step with the new account. The public key of the account is visible to the public and can be viewed in a mirror node explorer. The private key is used to authorize account-related transactions like transferring HBAR or tokens from that account to another account. The account will have an initial balance of 1,000 tinybars funded from your testnet account created by the Hedera portal.
You can view transactions successfully submitted to the network by getting the transaction ID and searching for it in a mirror node explorer. The transaction ID is composed of the account ID that paid for the transaction and the transaction's valid start time e.g. 0.0.1234@1609348302. The transaction's valid start time is the time the transaction begins to be valid on the network. The SDK automatically generates a transaction ID for each transaction behind the scenes.
//Create new account and assign the public key
TransactionResponse newAccount = new AccountCreateTransaction()
.setKey(newAccountPublicKey)
.setInitialBalance( Hbar.fromTinybars(1000))
.execute(client);
//Create a new account with 1,000 tinybar starting balance
const newAccount = await new AccountCreateTransaction()
.setKey(newAccountPublicKey)
.setInitialBalance(Hbar.fromTinybars(1000))
.execute(client);
//Create new account and assign the public key
newAccount, err := hedera.NewAccountCreateTransaction().
SetKey(newAccountPublicKey).
SetInitialBalance(hedera.HbarFrom(1000, hedera.HbarUnits.Tinybar)).
Execute(client)
Step 4: Get the new account ID
The account ID for the new account is returned in the receipt of the transaction that created the account. The receipt provides information about the transaction like whether it was successful or not and any new entity IDs that were created. Entities include accounts, smart contracts, tokens, files, topics, and scheduled transactions. The account ID is in x.y.z format where z is the account number. The preceding values (x and y) default to zero today and represent the shard and realm number respectively. Your new account ID should result in something like 0.0.1234.
// Get the new account ID
AccountId newAccountId = newAccount.getReceipt(client).accountId;
//Log the account ID
System.out.println("The new account ID is: " +newAccountId);
// Get the new account ID
const getReceipt = await newAccount.getReceipt(client);
const newAccountId = getReceipt.accountId;
//Log the account ID
console.log("The new account ID is: " +newAccountId);
//Request the receipt of the transaction
receipt, err := newAccount.GetReceipt(client)
if err != nil {
panic(err)
}
//Get the new account ID from the receipt
newAccountId := *receipt.AccountID
//Log the account ID
fmt.Printf("The new account ID is %v\n", newAccountId)
Step 5: Verify the new account balance
Next, you will submit a query to the Hedera test network to return the balance of the new account using the new account ID. The current account balance for the new account should be 1,000 tinybars. Getting the balance of an account is free today.
//Check the new account's balance
AccountBalance accountBalance = new AccountBalanceQuery()
.setAccountId(newAccountId)
.execute(client);
System.out.println("The new account balance is: " +accountBalance.hbars);
//Verify the account balance
const accountBalance = await new AccountBalanceQuery()
.setAccountId(newAccountId)
.execute(client);
console.log("The new account balance is: " +accountBalance.hbars.toTinybars() +" tinybar.");
//Create the account balance query
query := hedera.NewAccountBalanceQuery().
SetAccountID(newAccountId)
//Sign with client operator private key and submit the query to a Hedera network
accountBalance, err := query.Execute(client)
if err != nil {
panic(err)
}
//Print the balance of tinybars
fmt.Println("The account balance for the new account is ", accountBalance.Hbars.AsTinybar())
⭐ Congratulations! You have successfully completed the following:
Created a new Hedera account with an initial balance of 1,000 tinybars.
Obtained the new account ID by requesting the receipt of the transaction.
Verified the starting balance of the new account by submitting a query to the network.
You are now ready to transfer some HBAR to the new account 🤑!
Code Check ✅
Your complete code file should look something like this:
Java
import com.hedera.hashgraph.sdk.AccountId;
import com.hedera.hashgraph.sdk.HederaPreCheckStatusException;
import com.hedera.hashgraph.sdk.HederaReceiptStatusException;
import com.hedera.hashgraph.sdk.PrivateKey;
import com.hedera.hashgraph.sdk.Client;
import com.hedera.hashgraph.sdk.TransactionResponse;
import com.hedera.hashgraph.sdk.PublicKey;
import com.hedera.hashgraph.sdk.AccountCreateTransaction;
import com.hedera.hashgraph.sdk.Hbar;
import com.hedera.hashgraph.sdk.AccountBalanceQuery;
import com.hedera.hashgraph.sdk.AccountBalance;
import io.github.cdimascio.dotenv.Dotenv;
import java.util.concurrent.TimeoutException;
public class HederaExamples {
public static void main(String[] args) throws TimeoutException, HederaPreCheckStatusException, HederaReceiptStatusException {
//Grab your Hedera Testnet account ID and private key
AccountId myAccountId = AccountId.fromString(Dotenv.load().get("MY_ACCOUNT_ID"));
PrivateKey myPrivateKey = PrivateKey.fromString(Dotenv.load().get("MY_PRIVATE_KEY"));
//Create your Hedera Testnet client
Client client = Client.forTestnet();
client.setOperator(myAccountId, myPrivateKey);
// Generate a new key pair
PrivateKey newAccountPrivateKey = PrivateKey.generateED25519();
PublicKey newAccountPublicKey = newAccountPrivateKey.getPublicKey();
//Create new account and assign the public key
TransactionResponse newAccount = new AccountCreateTransaction()
.setKey(newAccountPublicKey)
.setInitialBalance( Hbar.fromTinybars(1000))
.execute(client);
// Get the new account ID
AccountId newAccountId = newAccount.getReceipt(client).accountId;
System.out.println("The new account ID is: " +newAccountId);
//Check the new account's balance
AccountBalance accountBalance = new AccountBalanceQuery()
.setAccountId(newAccountId)
.execute(client);
System.out.println("The new account balance is: " +accountBalance.hbars);
}
}
JavaScript
index.js
const {
Client,
PrivateKey,
AccountCreateTransaction,
AccountBalanceQuery,
Hbar,
} = require("@hashgraph/sdk");
require("dotenv").config();
async function transferHbar() {
// Grab your Hedera testnet account ID and private key from your .env file
const myAccountId = process.env.MY_ACCOUNT_ID;
const myPrivateKey = process.env.MY_PRIVATE_KEY;
// If we weren't able to grab it, we should throw a new error
if (myAccountId == null || myPrivateKey == null) {
throw new Error(
"Environment variables myAccountId and myPrivateKey must be present"
);
}
// Create our connection to the Hedera network
// The Hedera JS SDK makes this really easy!
const client = Client.forTestnet();
client.setOperator(myAccountId, myPrivateKey);
// Create new keys
const newAccountPrivateKey = PrivateKey.generateED25519();
const newAccountPublicKey = newAccountPrivateKey.publicKey;
// Create a new account with 1,000 tinybar starting balance
const newAccount = await new AccountCreateTransaction()
.setKey(newAccountPublicKey)
.setInitialBalance(Hbar.fromTinybars(1000))
.execute(client);
// Get the new account ID
const getReceipt = await newAccount.getReceipt(client);
const newAccountId = getReceipt.accountId;
console.log("The new account ID is: " + newAccountId);
// Verify the account balance
const accountBalance = await new AccountBalanceQuery()
.setAccountId(newAccountId)
.execute(client);
console.log(
"The new account balance is: " +
accountBalance.hbars.toTinybars() +
" tinybar."
);
return newAccountId;
}
// Call the async transferHbar function
transferHbar();
Go
package main
import (
"fmt"
"os"
"github.com/hashgraph/hedera-sdk-go/v2"
"github.com/joho/godotenv"
)
func main() {
//Loads the .env file and throws an error if it cannot load the variables from that file correctly
err := godotenv.Load(".env")
if err != nil {
panic(fmt.Errorf("Unable to load environment variables from .env file. Error:\n%v\n", err))
}
//Grab your testnet account ID and private key from the .env file
myAccountId, err := hedera.AccountIDFromString(os.Getenv("MY_ACCOUNT_ID"))
if err != nil {
panic(err)
}
myPrivateKey, err := hedera.PrivateKeyFromString(os.Getenv("MY_PRIVATE_KEY"))
if err != nil {
panic(err)
}
//Print your testnet account ID and private key to the console to make sure there was no error
fmt.Printf("The account ID is = %v\n", myAccountId)
fmt.Printf("The private key is = %v\n", myPrivateKey)
//Create your testnet client
client := hedera.ClientForTestnet()
client.SetOperator(myAccountId, myPrivateKey)
//Generate new keys for the account you will create
newAccountPrivateKey, err := hedera.PrivateKeyGenerateEd25519()
if err != nil {
panic(err)
}
newAccountPublicKey := newAccountPrivateKey.PublicKey()
//Create new account and assign the public key
newAccount, err := hedera.NewAccountCreateTransaction().
SetKey(newAccountPublicKey).
SetInitialBalance(hedera.HbarFrom(1000, hedera.HbarUnits.Tinybar)).
Execute(client)
//Request the receipt of the transaction
receipt, err := newAccount.GetReceipt(client)
if err != nil {
panic(err)
}
//Get the new account ID from the receipt
newAccountId := *receipt.AccountID
//Print the new account ID to the console
fmt.Printf("The new account ID is %v\n", newAccountId)
//Create the account balance query
query := hedera.NewAccountBalanceQuery().
SetAccountID(newAccountId)
//Sign with client operator private key and submit the query to a Hedera network
accountBalance, err := query.Execute(client)
if err != nil {
panic(err)
}
//Print the balance of tinybars
fmt.Println("The account balance for the new account is ", accountBalance.Hbars.AsTinybar())
}
Sample output:
The new account ID is: 0.0.4065569
The new account balance is: 1000 tinybar.
