Examples with Hbar com.hedera.hashgraph.sdk.Hbar used on opensource projects

Example 61 with Hbar

use of com.hedera.hashgraph.sdk.Hbar in project hedera-sdk-java by hashgraph.

the class UpdateAccountPublicKeyExample method main.

public static void main(String[] args) throws TimeoutException, PrecheckStatusException, ReceiptStatusException {
    Client client = Client.forName(HEDERA_NETWORK);
    // Defaults the operator account ID and key such that all generated transactions will be paid for
    // by this account and be signed by this key
    client.setOperator(OPERATOR_ID, OPERATOR_KEY);
    client.setDefaultMaxTransactionFee(new Hbar(10));
    // First, we create a new account so we don't affect our account
    PrivateKey key1 = PrivateKey.generateED25519();
    PrivateKey key2 = PrivateKey.generateED25519();
    TransactionResponse acctTransactionResponse = new AccountCreateTransaction().setKey(key1.getPublicKey()).setInitialBalance(new Hbar(1)).execute(client);
    System.out.println("transaction ID: " + acctTransactionResponse);
    AccountId accountId = Objects.requireNonNull(acctTransactionResponse.getReceipt(client).accountId);
    System.out.println("account = " + accountId);
    System.out.println("key = " + key1.getPublicKey());
    // Next, we update the key
    System.out.println(" :: update public key of account " + accountId);
    System.out.println("set key = " + key2.getPublicKey());
    TransactionResponse accountUpdateTransactionResponse = new AccountUpdateTransaction().setAccountId(accountId).setKey(key2.getPublicKey()).freezeWith(client).sign(key1).sign(key2).execute(client);
    System.out.println("transaction ID: " + accountUpdateTransactionResponse);
    // (important!) wait for the transaction to complete by querying the receipt
    accountUpdateTransactionResponse.getReceipt(client);
    // Now we fetch the account information to check if the key was changed
    System.out.println(" :: getAccount and check our current key");
    AccountInfo info = new AccountInfoQuery().setAccountId(accountId).execute(client);
    System.out.println("key = " + info.key);
}

Example 62 with Hbar

use of com.hedera.hashgraph.sdk.Hbar in project hedera-sdk-java by hashgraph.

the class TokenNftTransferIntegrationTest method cannotTransferUnownedNfts.

@Test
@DisplayName("Cannot transfer NFTs you don't own")
void cannotTransferUnownedNfts() throws Exception {
    var testEnv = new IntegrationTestEnv(1).useThrowawayAccount();
    var key = PrivateKey.generateED25519();
    @Var TransactionResponse response = new AccountCreateTransaction().setKey(key).setInitialBalance(new Hbar(1)).execute(testEnv.client);
    var accountId = response.getReceipt(testEnv.client).accountId;
    assertThat(accountId).isNotNull();
    response = new TokenCreateTransaction().setTokenName("ffff").setTokenSymbol("F").setTokenType(TokenType.NON_FUNGIBLE_UNIQUE).setTreasuryAccountId(testEnv.operatorId).setAdminKey(testEnv.operatorKey).setFreezeKey(testEnv.operatorKey).setWipeKey(testEnv.operatorKey).setSupplyKey(testEnv.operatorKey).setFreezeDefault(false).execute(testEnv.client);
    var tokenId = response.getReceipt(testEnv.client).tokenId;
    assertThat(tokenId).isNotNull();
    var mintReceipt = new TokenMintTransaction().setTokenId(tokenId).setMetadata(NftMetadataGenerator.generate((byte) 10)).execute(testEnv.client).getReceipt(testEnv.client);
    new TokenAssociateTransaction().setAccountId(accountId).setTokenIds(Collections.singletonList(tokenId)).freezeWith(testEnv.client).signWithOperator(testEnv.client).sign(key).execute(testEnv.client).getReceipt(testEnv.client);
    var serialsToTransfer = new ArrayList<Long>(mintReceipt.serials.subList(0, 4));
    var transfer = new TransferTransaction();
    for (var serial : serialsToTransfer) {
        // Try to transfer in wrong direction
        transfer.addNftTransfer(tokenId.nft(serial), accountId, testEnv.operatorId);
    }
    transfer.freezeWith(testEnv.client).sign(key);
    assertThatExceptionOfType(ReceiptStatusException.class).isThrownBy(() -> {
        transfer.execute(testEnv.client).getReceipt(testEnv.client);
    }).withMessageContaining(Status.SENDER_DOES_NOT_OWN_NFT_SERIAL_NO.toString());
    testEnv.close(tokenId, accountId, key);
}

Example 63 with Hbar

use of com.hedera.hashgraph.sdk.Hbar in project hedera-sdk-java by hashgraph.

the class TokenRevokeKycIntegrationTest method cannotRevokeKycToAccountOnTokenWhenAccountWasNotAssociatedWith.

@Test
@DisplayName("Cannot revoke kyc to account on token when account was not associated with")
void cannotRevokeKycToAccountOnTokenWhenAccountWasNotAssociatedWith() throws Exception {
    var testEnv = new IntegrationTestEnv(1).useThrowawayAccount();
    var key = PrivateKey.generateED25519();
    var response = new AccountCreateTransaction().setKey(key).setInitialBalance(new Hbar(1)).execute(testEnv.client);
    var accountId = Objects.requireNonNull(response.getReceipt(testEnv.client).accountId);
    var tokenId = Objects.requireNonNull(new TokenCreateTransaction().setTokenName("ffff").setTokenSymbol("F").setDecimals(3).setInitialSupply(1000000).setTreasuryAccountId(testEnv.operatorId).setAdminKey(testEnv.operatorKey).setFreezeKey(testEnv.operatorKey).setWipeKey(testEnv.operatorKey).setKycKey(testEnv.operatorKey).setSupplyKey(testEnv.operatorKey).setFreezeDefault(false).execute(testEnv.client).getReceipt(testEnv.client).tokenId);
    assertThatExceptionOfType(ReceiptStatusException.class).isThrownBy(() -> {
        new TokenRevokeKycTransaction().setAccountId(accountId).setTokenId(tokenId).freezeWith(testEnv.client).sign(key).execute(testEnv.client).getReceipt(testEnv.client);
    }).withMessageContaining(Status.TOKEN_NOT_ASSOCIATED_TO_ACCOUNT.toString());
    testEnv.close(tokenId, accountId, key);
}

Example 64 with Hbar

use of com.hedera.hashgraph.sdk.Hbar in project hedera-sdk-java by hashgraph.

the class TokenTransferIntegrationTest method insufficientBalanceForFee.

@Test
@DisplayName("Cannot transfer tokens if balance is insufficient to pay fee")
void insufficientBalanceForFee() throws Exception {
    var testEnv = new IntegrationTestEnv(1).useThrowawayAccount();
    PrivateKey key1 = PrivateKey.generateED25519();
    PrivateKey key2 = PrivateKey.generateED25519();
    var accountId1 = new AccountCreateTransaction().setKey(key1).setInitialBalance(new Hbar(2)).execute(testEnv.client).getReceipt(testEnv.client).accountId;
    var accountId2 = new AccountCreateTransaction().setKey(key2).setInitialBalance(new Hbar(2)).execute(testEnv.client).getReceipt(testEnv.client).accountId;
    var tokenId = new TokenCreateTransaction().setTokenName("ffff").setTokenSymbol("F").setInitialSupply(1).setCustomFees(Collections.singletonList(new CustomFixedFee().setAmount(5000_000_000L).setFeeCollectorAccountId(testEnv.operatorId))).setTreasuryAccountId(testEnv.operatorId).setAdminKey(testEnv.operatorKey).setFeeScheduleKey(testEnv.operatorKey).execute(testEnv.client).getReceipt(testEnv.client).tokenId;
    new TokenAssociateTransaction().setAccountId(accountId1).setTokenIds(Collections.singletonList(tokenId)).freezeWith(testEnv.client).sign(key1).execute(testEnv.client).getReceipt(testEnv.client);
    new TokenAssociateTransaction().setAccountId(accountId2).setTokenIds(Collections.singletonList(tokenId)).freezeWith(testEnv.client).sign(key2).execute(testEnv.client).getReceipt(testEnv.client);
    new TransferTransaction().addTokenTransfer(tokenId, testEnv.operatorId, -1).addTokenTransfer(tokenId, accountId1, 1).freezeWith(testEnv.client).sign(key1).execute(testEnv.client).getReceipt(testEnv.client);
    assertThatExceptionOfType(ReceiptStatusException.class).isThrownBy(() -> {
        new TransferTransaction().addTokenTransfer(tokenId, accountId1, -1).addTokenTransfer(tokenId, accountId2, 1).freezeWith(testEnv.client).sign(key1).sign(key2).execute(testEnv.client).getReceipt(testEnv.client);
    }).satisfies(error -> assertThat(error.getMessage()).containsAnyOf(Status.INSUFFICIENT_SENDER_ACCOUNT_BALANCE_FOR_CUSTOM_FEE.toString(), Status.INSUFFICIENT_PAYER_BALANCE_FOR_CUSTOM_FEE.toString()));
    testEnv.wipeAccountHbars(accountId1, key1);
    testEnv.wipeAccountHbars(accountId2, key2);
    testEnv.close();
}

Example 65 with Hbar

use of com.hedera.hashgraph.sdk.Hbar in project hedera-sdk-java by hashgraph.

the class TokenTransferIntegrationTest method tokenTransferTest.

@Test
@DisplayName("Can transfer tokens")
void tokenTransferTest() throws Exception {
    var testEnv = new IntegrationTestEnv(1).useThrowawayAccount();
    var key = PrivateKey.generateED25519();
    @Var TransactionResponse response = new AccountCreateTransaction().setKey(key).setInitialBalance(new Hbar(1)).execute(testEnv.client);
    var accountId = response.getReceipt(testEnv.client).accountId;
    assertThat(accountId).isNotNull();
    response = new TokenCreateTransaction().setTokenName("ffff").setTokenSymbol("F").setDecimals(3).setInitialSupply(1000000).setTreasuryAccountId(testEnv.operatorId).setAdminKey(testEnv.operatorKey).setFreezeKey(testEnv.operatorKey).setWipeKey(testEnv.operatorKey).setKycKey(testEnv.operatorKey).setSupplyKey(testEnv.operatorKey).setFreezeDefault(false).execute(testEnv.client);
    var tokenId = response.getReceipt(testEnv.client).tokenId;
    assertThat(tokenId).isNotNull();
    new TokenAssociateTransaction().setAccountId(accountId).setTokenIds(Collections.singletonList(tokenId)).freezeWith(testEnv.client).signWithOperator(testEnv.client).sign(key).execute(testEnv.client).getReceipt(testEnv.client);
    new TokenGrantKycTransaction().setAccountId(accountId).setTokenId(tokenId).execute(testEnv.client).getReceipt(testEnv.client);
    new TransferTransaction().addTokenTransfer(tokenId, testEnv.operatorId, -10).addTokenTransfer(tokenId, accountId, 10).execute(testEnv.client).getReceipt(testEnv.client);
    testEnv.close(tokenId, accountId, key);
}