From 7724d5e24885962a5dc2bcac8ee58626c6162813 Mon Sep 17 00:00:00 2001
From: OleksandrSobol <dr.alexander.sobol@gmail.com>
Date: Thu, 24 Jun 2021 18:59:19 +0300
Subject: [PATCH] CAKE-333 | fixed commit() method in the
 pending_bitcoin_transaction.dart; added
 bitcoin_commit_transaction_exception.dart to the app

---
 lib/bitcoin/bitcoin_commit_transaction_exception.dart | 4 ++++
 lib/bitcoin/pending_bitcoin_transaction.dart          | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 lib/bitcoin/bitcoin_commit_transaction_exception.dart

diff --git a/lib/bitcoin/bitcoin_commit_transaction_exception.dart b/lib/bitcoin/bitcoin_commit_transaction_exception.dart
new file mode 100644
index 000000000..3e21bae81
--- /dev/null
+++ b/lib/bitcoin/bitcoin_commit_transaction_exception.dart
@@ -0,0 +1,4 @@
+class BitcoinCommitTransactionException implements Exception {
+  @override
+  String toString() => 'Transaction commit is failed.';
+}
\ No newline at end of file
diff --git a/lib/bitcoin/pending_bitcoin_transaction.dart b/lib/bitcoin/pending_bitcoin_transaction.dart
index ec3e3a985..b26814339 100644
--- a/lib/bitcoin/pending_bitcoin_transaction.dart
+++ b/lib/bitcoin/pending_bitcoin_transaction.dart
@@ -1,3 +1,4 @@
+import 'package:cake_wallet/bitcoin/bitcoin_commit_transaction_exception.dart';
 import 'package:flutter/foundation.dart';
 import 'package:bitcoin_flutter/bitcoin_flutter.dart' as bitcoin;
 import 'package:cake_wallet/core/pending_transaction.dart';
@@ -33,7 +34,13 @@ class PendingBitcoinTransaction with PendingTransaction {
 
   @override
   Future<void> commit() async {
-    await electrumClient.broadcastTransaction(transactionRaw: _tx.toHex());
+    final result =
+      await electrumClient.broadcastTransaction(transactionRaw: _tx.toHex());
+
+    if (result.isEmpty) {
+      throw BitcoinCommitTransactionException();
+    }
+
     _listeners?.forEach((listener) => listener(transactionInfo()));
   }