Add initial flow for Now Nodes

assets/ethereum_server_list.yml

@@ -7,4 +7,7 @@
 -
   uri: eth-mainnet.public.blastapi.io
 -
-  uri: ethereum.publicnode.com
+  uri: ethereum.publicnode.com
+-
+  uri: eth.nownodes.io
+  usesApiKey: true

cw_core/lib/node.dart

@@ -20,6 +20,7 @@ class Node extends HiveObject with Keyable {
     this.useSSL,
     this.trusted = false,
     this.socksProxyAddress,
+    this.usesApiKey = false,
     String? uri,
     WalletType? type,
   }) {
@@ -37,7 +38,8 @@ class Node extends HiveObject with Keyable {
         password = map['password'] as String?,
         useSSL = map['useSSL'] as bool?,
         trusted = map['trusted'] as bool? ?? false,
-        socksProxyAddress = map['socksProxyPort'] as String?;
+        socksProxyAddress = map['socksProxyPort'] as String?,
+        usesApiKey = map['usesApiKey'] as bool? ?? false;
 
   static const typeId = NODE_TYPE_ID;
   static const boxName = 'Nodes';
@@ -63,6 +65,9 @@ class Node extends HiveObject with Keyable {
   @HiveField(6)
   String? socksProxyAddress;
 
+  @HiveField(7, defaultValue: false)
+  bool? usesApiKey;
+
   bool get isSSL => useSSL ?? false;
 
   bool get useSocksProxy => socksProxyAddress == null ? false : socksProxyAddress!.isNotEmpty;

cw_evm/lib/evm_chain_client.dart

@@ -9,6 +9,7 @@ import 'package:cw_evm/evm_erc20_balance.dart';
 import 'package:cw_evm/evm_chain_transaction_model.dart';
 import 'package:cw_evm/pending_evm_chain_transaction.dart';
 import 'package:cw_evm/evm_chain_transaction_priority.dart';
+import 'package:cw_evm/.secrets.g.dart' as secrets;
 import 'package:flutter/services.dart';
 
 import 'package:http/http.dart';
@@ -32,7 +33,14 @@ abstract class EVMChainClient {
 
   bool connect(Node node) {
     try {
-      _client = Web3Client(node.uri.toString(), httpClient);
+      String url = node.uri.toString();
+      if (node.usesApiKey == true) {
+        url += getApiKey();
+      }
+      print("@@@@@@@@@@@@");
+      print(node.usesApiKey);
+      print(url);
+      _client = Web3Client(url, httpClient);
 
       return true;
     } catch (e) {
@@ -40,6 +48,8 @@ abstract class EVMChainClient {
     }
   }
 
+  String getApiKey() => "/${secrets.nodesAPIKey}";
+
   void setListeners(EthereumAddress userAddress, Function() onNewTransaction) async {
     // _client?.pendingTransactions().listen((transactionHash) async {
     //   final transaction = await _client!.getTransactionByHash(transactionHash);

lib/entities/default_settings_migration.dart

@@ -25,7 +25,7 @@ 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 = 'ethereum.publicnode.com';
+const ethereumDefaultNodeUri = 'eth.nownodes.io';
 const polygonDefaultNodeUri = 'polygon-bor.publicnode.com';
 const cakeWalletBitcoinCashDefaultNodeUri = 'bitcoincash.stackwallet.com:50002';
 const nanoDefaultNodeUri = 'rpc.nano.to';