From 83384ab2af3f81ca01c33502e001e2ea92681f77 Mon Sep 17 00:00:00 2001
From: Shannon Appelcline <shannon.appelcline@gmail.com>
Date: Wed, 2 Sep 2020 12:45:51 -1000
Subject: [PATCH] Create 17_2_App-sendtx.java

---
 src/17_2_App-sendtx.java | 70 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 src/17_2_App-sendtx.java

diff --git a/src/17_2_App-sendtx.java b/src/17_2_App-sendtx.java
new file mode 100644
index 0000000..3f1f462
--- /dev/null
+++ b/src/17_2_App-sendtx.java
@@ -0,0 +1,70 @@
+package com.blockchaincommons.lbtc;
+
+import java.math.BigDecimal;
+import java.util.*;
+
+import wf.bitcoin.javabitcoindrpcclient.BitcoinJSONRPCClient;
+import wf.bitcoin.javabitcoindrpcclient.BitcoinRawTxBuilder;
+import wf.bitcoin.javabitcoindrpcclient.BitcoindRpcClient;
+import wf.bitcoin.javabitcoindrpcclient.BitcoindRpcClient.*;
+
+public class App
+{
+
+    public static void main( String[] args ) throws Exception
+    {
+
+	BitcoindRpcClient rpcClient = new BitcoinJSONRPCClient("http://StandUp:6305f1b2dbb3bc5a16cd0f4aac7e1eba@localhost:18332");
+
+	/* 1. Prepare two address */
+	
+	/* Use an address on your system with UTXOs */
+	String addr1 = "tb1qdqkc3430rexxlgnma6p7clly33s6jjgay5q8np";
+	System.out.println("Used address addr1: " + addr1);
+
+	String addr2 = rpcClient.getNewAddress();
+	System.out.println("Created address addr2: " + addr2);
+
+	/* 2. Find a UTXO */
+	
+	List<Unspent> utxos = rpcClient.listUnspent(0, Integer.MAX_VALUE, addr1);
+	System.out.println("Found " + utxos.size() + " UTXOs (unspent transaction outputs) belonging to addr1");
+
+	/* 3. Create a Transaction */
+	
+	BitcoinRawTxBuilder txb = new BitcoinRawTxBuilder(rpcClient);
+
+	/* 3.1 Fill the Input */
+	
+	TxInput in = utxos.get(0);
+	txb.in(in);
+
+	/* 3.2 Fill the Output */
+	
+	BigDecimal estimatedFee = BigDecimal.valueOf(0.00000200);
+	BigDecimal txToAddr2Amount = utxos.get(0).amount().subtract(estimatedFee); 
+	txb.out(addr2, txToAddr2Amount);
+
+	System.out.println("unsignedRawTx in amount: " + utxos.get(0).amount());
+	System.out.println("unsignedRawTx out amount: " + txToAddr2Amount);
+
+	/* 4. Sign the Transaction */
+	
+	String unsignedRawTxHex = txb.create();
+	System.out.println("Created unsignedRawTx from addr1 to addr2: " + unsignedRawTxHex);
+
+	SignedRawTransaction srTx = rpcClient.signRawTransactionWithKey(
+				unsignedRawTxHex,
+				Arrays.asList(rpcClient.dumpPrivKey(addr1)),
+				Arrays.asList(in),
+				null);
+	System.out.println("signedRawTx hex: " + srTx.hex());
+	System.out.println("signedRawTx complete: " + srTx.complete());
+
+	/* 5. Send the Transaction */
+	
+	String sentRawTransactionID = rpcClient.sendRawTransaction(srTx.hex());
+	System.out.println("Sent signedRawTx (txID): " + sentRawTransactionID);
+
+    }
+}