Change ethereum node

Fix connection issues

assets/ethereum_server_list.yml

@@ -1,2 +1,2 @@
 -
-  uri: 10.0.2.2:7545
+  uri: ethereum.publicnode.com

cw_core/lib/node.dart

@@ -68,6 +68,8 @@ class Node extends HiveObject with Keyable {
         return createUriFromElectrumAddress(uriRaw);
       case WalletType.haven:
         return Uri.http(uriRaw, '');
+      case WalletType.ethereum:
+        return Uri.https(uriRaw, '');
       default:
         throw Exception('Unexpected type ${type.toString()} for Node uri');
     }

cw_ethereum/lib/ethereum_client.dart

@@ -4,11 +4,11 @@ import 'package:http/http.dart';
 import 'package:web3dart/web3dart.dart';
 
 class EthereumClient {
-  late final Web3Client _client;
+  Web3Client? _client;
 
   Future<bool> connect(Node node) async {
     try {
-      _client = Web3Client(node.uriRaw, Client());
+      _client = Web3Client(node.uri.toString(), Client());
 
       return true;
     } catch (e) {
@@ -19,17 +19,17 @@ class EthereumClient {
   Future<EtherAmount> getBalance(String privateKey) async {
     final private = EthPrivateKey.fromHex(privateKey);
 
-    return _client.getBalance(private.address);
+    return _client!.getBalance(private.address);
   }
 
   Future<int> getGasUnitPrice() async {
-    final gasPrice = await _client.getGasPrice();
+    final gasPrice = await _client!.getGasPrice();
     return gasPrice.getInWei.toInt();
   }
 
   Future<List<int>> getEstimatedGasForPriorities() async {
-    final result = await Future.wait(EthereumTransactionPriority.all.map((priority) =>
+    final result = await Future.wait(EthereumTransactionPriority.all.map((priority) => _client!
-        _client.estimateGas(
+        .estimateGas(
             maxPriorityFeePerGas: EtherAmount.fromUnitAndValue(EtherUnit.gwei, priority.tip))));
 
     return result.map((e) => e.toInt()).toList();

cw_ethereum/lib/ethereum_wallet.dart

@@ -39,6 +39,7 @@ abstract class EthereumWalletBase
         _password = password,
         _mnemonic = mnemonic,
         _feeRates = [],
+        _client = EthereumClient(),
         walletAddresses = EthereumWalletAddresses(walletInfo),
         balance = ObservableMap<CryptoCurrency, EthereumBalance>.of(
             {CryptoCurrency.eth: initialBalance ?? EthereumBalance(available: 0, additional: 0)}),
@@ -60,6 +61,7 @@ abstract class EthereumWalletBase
   WalletAddresses walletAddresses;
 
   @override
+  @observable
   SyncStatus syncStatus;
 
   @override
@@ -85,6 +87,7 @@ abstract class EthereumWalletBase
   @override
   void close() {}
 
+  @action
   @override
   Future<void> connectToNode({required Node node}) async {
     try {
@@ -132,6 +135,7 @@ abstract class EthereumWalletBase
   @override
   String get seed => _mnemonic;
 
+  @action
   @override
   Future<void> startSync() async {
     try {

lib/entities/default_settings_migration.dart

@@ -24,7 +24,7 @@ const newCakeWalletMoneroUri = 'xmr-node.cakewallet.com:18081';
 const cakeWalletBitcoinElectrumUri = 'electrum.cakewallet.com:50002';
 const cakeWalletLitecoinElectrumUri = 'ltc-electrum.cakewallet.com:50002';
 const havenDefaultNodeUri = 'nodes.havenprotocol.org:443';
-const ethereumDefaultNodeUri = '10.0.2.2:7545';
+const ethereumDefaultNodeUri = 'ethereum.publicnode.com';
 
 Future defaultSettingsMigration(
     {required int version,