mirror of
https://github.com/XRPLF/xrpl-dev-portal.git
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121 lines
4.5 KiB
Java
121 lines
4.5 KiB
Java
// Example Credentials --------------------------------------------------------
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WalletFactory walletFactory = DefaultWalletFactory.getInstance();
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Wallet testWallet = walletFactory
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.fromSeed("sn3nxiW7v8KXzPzAqzyHXbSSKNuN9", true)
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.wallet();
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// Get the Classic address from testWallet
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Address classicAddress = testWallet.classicAddress();
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System.out.println(classicAddress); // "rMCcNuTcajgw7YTgBy1sys3b89QqjUrMpH"
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// Connect --------------------------------------------------------------------
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HttpUrl rippledUrl = HttpUrl.get("https://s.altnet.rippletest.net:51234/");
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XrplClient xrplClient = new XrplClient(rippledUrl);
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// Prepare transaction --------------------------------------------------------
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// Look up your Account Info
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AccountInfoRequestParams requestParams = AccountInfoRequestParams.builder()
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.ledgerIndex(LedgerIndex.VALIDATED)
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.account(classicAddress)
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.build();
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AccountInfoResult accountInfoResult = xrplClient.accountInfo(requestParams);
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UnsignedInteger sequence = accountInfoResult.accountData().sequence();
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// Request current fee information from rippled
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FeeResult feeResult = xrplClient.fee();
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XrpCurrencyAmount openLedgerFee = feeResult.drops().openLedgerFee();
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// Get the latest validated ledger index
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LedgerIndex validatedLedger = xrplClient.ledger(
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LedgerRequestParams.builder()
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.ledgerIndex(LedgerIndex.VALIDATED)
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.build()
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)
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.ledgerIndex()
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.orElseThrow(() -> new RuntimeException("LedgerIndex not available."));
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// Workaround for https://github.com/XRPLF/xrpl4j/issues/84
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UnsignedInteger lastLedgerSequence = UnsignedInteger.valueOf(
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validatedLedger.plus(UnsignedLong.valueOf(4)).unsignedLongValue().intValue()
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);
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// Construct a Payment
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Payment payment = Payment.builder()
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.account(classicAddress)
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.amount(XrpCurrencyAmount.ofXrp(BigDecimal.ONE))
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.destination(Address.of("rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe"))
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.sequence(sequence)
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.fee(openLedgerFee)
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.signingPublicKey(testWallet.publicKey())
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.lastLedgerSequence(lastLedgerSequence)
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.build();
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System.out.println("Constructed Payment: " + payment);
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// Sign transaction -----------------------------------------------------------
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// Construct a SignatureService to sign the Payment
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PrivateKey privateKey = PrivateKey.fromBase16EncodedPrivateKey(
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testWallet.privateKey().get()
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);
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SignatureService signatureService = new SingleKeySignatureService(privateKey);
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// Sign the Payment
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SignedTransaction<Payment> signedPayment = signatureService.sign(
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KeyMetadata.EMPTY,
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payment
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);
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System.out.println("Signed Payment: " + signedPayment.signedTransaction());
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// Submit transaction ---------------------------------------------------------
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SubmitResult<Transaction> prelimResult = xrplClient.submit(signedPayment);
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System.out.println(prelimResult);
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// Wait for validation --------------------------------------------------------
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boolean transactionValidated = false;
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boolean transactionExpired = false;
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while (!transactionValidated && !transactionExpired) {
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Thread.sleep(4 * 1000);
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LedgerIndex latestValidatedLedgerIndex = xrplClient.ledger(
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LedgerRequestParams.builder().ledgerIndex(LedgerIndex.VALIDATED).build()
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)
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.ledgerIndex()
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.orElseThrow(() ->
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new RuntimeException("Ledger response did not contain a LedgerIndex.")
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);
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TransactionResult<Payment> transactionResult = xrplClient.transaction(
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TransactionRequestParams.of(signedPayment.hash()),
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Payment.class
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);
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if (transactionResult.validated()) {
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System.out.println("Payment was validated with result code " +
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transactionResult.metadata().get().transactionResult());
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transactionValidated = true;
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} else {
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boolean lastLedgerSequenceHasPassed = FluentCompareTo.
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is(latestValidatedLedgerIndex.unsignedLongValue())
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.greaterThan(UnsignedLong.valueOf(lastLedgerSequence.intValue()));
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if (lastLedgerSequenceHasPassed) {
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System.out.println("LastLedgerSequence has passed. Last tx response: "
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transactionResult);
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);
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transactionExpired = true;
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} else {
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System.out.println("Payment not yet validated.");
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}
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}
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}
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// Check transaction results --------------------------------------------------
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System.out.println(transactionResult);
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System.out.println("Explorer link: https://testnet.xrpl.org/transactions/" +
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signedPayment.hash());
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transactionResult.metadata().ifPresent(metadata -> {
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System.out.println("Result code: " + metadata.transactionResult());
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metadata.deliveredAmount().ifPresent(deliveredAmount ->
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System.out.println("XRP Delivered: " +
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((XrpCurrencyAmount) deliveredAmount).toXrp())
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);
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});
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