remove SendPayment.java.

Add Java to send-xrp tutorial
2025-11-20 03:35:51 +00:00 · 2021-05-04 15:50:32 -04:00
parent b1cbdeb331
commit 762cd6dc34
3 changed files with 163 additions and 61 deletions
--- a/content/_code-samples/send-xrp/SendXrp.java
+++ b/content/_code-samples/send-xrp/SendXrp.java
@@ -0,0 +1,102 @@
+// Example Credentials ----------------------------------------------------------
+WalletFactory walletFactory = DefaultWalletFactory.getInstance();
+Wallet testWallet = walletFactory.fromSeed("sn3nxiW7v8KXzPzAqzyHXbSSKNuN9", true).wallet();
+
+// Get the Classic address from testWallet
+Address classicAddress = testWallet.classicAddress();
+System.out.println(classicAddress); // "rMCcNuTcajgw7YTgBy1sys3b89QqjUrMpH"
+
+// Connect ----------------------------------------------------------------------
+HttpUrl rippledUrl = HttpUrl.get("https://s.altnet.rippletest.net:51234/");
+XrplClient xrplClient = new XrplClient(rippledUrl);
+
+// Prepare transaction ----------------------------------------------------------
+// Look up your Account Info
+AccountInfoRequestParams requestParams = AccountInfoRequestParams.builder()
+  .ledgerIndex(LedgerIndex.VALIDATED)
+  .account(classicAddress)
+  .build();
+AccountInfoResult accountInfoResult = xrplClient.accountInfo(requestParams);
+UnsignedInteger sequence = accountInfoResult.accountData().sequence();
+
+// Request current fee information from rippled
+FeeResult feeResult = xrplClient.fee();
+XrpCurrencyAmount openLedgerFee = feeResult.drops().openLedgerFee();
+
+// Get the latest validated ledger index
+LedgerIndex validatedLedger = xrplClient.ledger(LedgerRequestParams.builder().ledgerIndex(LedgerIndex.VALIDATED).build())
+  .ledgerIndex()
+  .orElseThrow(() -> new RuntimeException("LedgerIndex not available."));
+
+// Workaround for https://github.com/XRPLF/xrpl4j/issues/84
+UnsignedInteger lastLedgerSequence = UnsignedInteger.valueOf(
+  validatedLedger.plus(UnsignedLong.valueOf(4)).unsignedLongValue().intValue()
+  );
+
+// Construct a Payment
+Payment payment = Payment.builder()
+  .account(classicAddress)
+  .amount(XrpCurrencyAmount.ofXrp(BigDecimal.ONE))
+  .destination(Address.of("rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe"))
+  .sequence(sequence)
+  .fee(openLedgerFee)
+  .signingPublicKey(testWallet.publicKey())
+  .lastLedgerSequence(lastLedgerSequence)
+  .build();
+System.out.println("Constructed Payment: " + payment);
+
+// Sign transaction -------------------------------------------------------------
+// Construct a SignatureService to sign the Payment
+PrivateKey privateKey = PrivateKey.fromBase16EncodedPrivateKey(testWallet.privateKey().get());
+SignatureService signatureService = new SingleKeySignatureService(privateKey);
+
+// Sign the Payment
+SignedTransaction<Payment> signedPayment = signatureService.sign(KeyMetadata.EMPTY, payment);
+System.out.println("Signed Payment: " + signedPayment.signedTransaction());
+
+// Submit transaction -----------------------------------------------------------
+SubmitResult<Transaction> submitResult = xrplClient.submit(signedPayment);
+System.out.println(submitResult);
+
+// Wait for validation ----------------------------------------------------------
+boolean transactionValidated = false;
+boolean transactionExpired = false;
+while (!transactionValidated && !transactionExpired) {
+  Thread.sleep(4 * 1000);
+  LedgerIndex latestValidatedLedgerIndex = xrplClient.ledger(
+      LedgerRequestParams.builder().ledgerIndex(LedgerIndex.VALIDATED).build()
+    )
+    .ledgerIndex()
+    .orElseThrow(() -> new RuntimeException("Ledger response did not contain a LedgerIndex."));
+
+  TransactionResult<Payment> transactionResult = xrplClient.transaction(
+    TransactionRequestParams.of(signedPayment.hash()),
+    Payment.class
+  );
+
+  if (transactionResult.validated()) {
+    System.out.println("Payment was validated with result code " + transactionResult.metadata().get().transactionResult());
+    transactionValidated = true;
+  } else {
+    boolean lastLedgerSequenceHasPassed = FluentCompareTo.
+      is(latestValidatedLedgerIndex.unsignedLongValue())
+      .greaterThan(UnsignedLong.valueOf(lastLedgerSequence.intValue()));
+    if (lastLedgerSequenceHasPassed) {
+      System.out.println("Payment was never validated and has expired.");
+      transactionExpired = true;
+    } else {
+      System.out.println("Payment not yet validated.");
+    }
+  }
+}
+
+// Check transaction results ----------------------------------------------------
+System.out.println(transactionResult);
+System.out.println("Explorer link: https://testnet.xrpl.org/transactions/" + signedPayment.hash());
+transactionResult.metadata().ifPresent(metadata -> {
+  System.out.println("Result code: " + metadata.transactionResult());
+
+  metadata.deliveredAmount().ifPresent(deliveredAmount ->
+    System.out.println("XRP Delivered: " + ((XrpCurrencyAmount) deliveredAmount).toXrp())
+  );
+});