Merge pull request #2 from DataHighway-DHX/develop_luke

feat: Setup APIs to connect to Ethereum smart contracts

.gitignore

@@ -8,6 +8,7 @@
 .buildlog/
 .history
 .svn/
+.env*
 
 # IntelliJ related
 *.iml

assets/data/abi_datahighway_iota_pegged_mining_mainnet.json

@@ -0,0 +1 @@
+{}

assets/data/abi_mxc_mainnet.json

@@ -0,0 +1 @@
+[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_cliffMonths","type":"uint256"},{"name":"_vestingMonths","type":"uint256"}],"name":"grantTokenStartNow","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_amount","type":"uint256"}],"name":"returnGrantedToken","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_start","type":"uint256"},{"name":"_cliff","type":"uint256"},{"name":"_vesting","type":"uint256"}],"name":"grantToken","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"}],"name":"redeemVestableToken","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"who","type":"address"}],"name":"vestBalanceOf","outputs":[{"name":"amount","type":"uint256"},{"name":"vestedAmount","type":"uint256"},{"name":"start","type":"uint256"},{"name":"cliff","type":"uint256"},{"name":"vesting","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"},{"indexed":false,"name":"_start","type":"uint256"},{"indexed":false,"name":"_cliff","type":"uint256"},{"indexed":false,"name":"_vesting","type":"uint256"}],"name":"NewTokenGrant","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"},{"indexed":false,"name":"_vestedMonths","type":"uint256"}],"name":"VestedTokenRedeemed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"}],"name":"GrantedTokenReturned","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]

lib/constants.dart

@@ -0,0 +1,24 @@
+import 'package:web3dart/web3dart.dart';
+import 'package:flutter_dotenv/flutter_dotenv.dart';
+
+// Account
+var kSamplePrivateKey = DotEnv().env['SAMPLE_PRIVATE_KEY'];
+var kSampleAccountAddrMainnet =
+    EthereumAddress.fromHex('0x2733566693458ee7e35f63b309da864db2637dc1');
+
+// Testnet
+var kRpcUrlInfuraGoerli =
+    'https://goerli.infura.io/v3/${DotEnv().env['INFURA_PROJECT_ID']}';
+var kWsUrlInfuraGoerli =
+    'wss://goerli.infura.io/v3/${DotEnv().env['INFURA_PROJECT_ID']}';
+
+// Mainnet
+var kRpcUrlInfuraMainnet =
+    'https://mainnet.infura.io/v3/${DotEnv().env['INFURA_PROJECT_ID']}';
+var kWsUrlInfuraMainnet =
+    'wss://mainnet.infura.io/v3/${DotEnv().env['INFURA_PROJECT_ID']}';
+final EthereumAddress kContractAddrMXCMainnet =
+    EthereumAddress.fromHex('0x5Ca381bBfb58f0092df149bD3D243b08B9a8386e');
+// FIXME - deploy contract and replace address below
+final EthereumAddress kContractAddrDataHighwayMiningMainnet =
+    EthereumAddress.fromHex('0x0');

lib/main.dart

@@ -4,8 +4,10 @@ import 'package:polka_wallet/app.dart';
 
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:polka_wallet/service/notification.dart';
+import 'package:flutter_dotenv/flutter_dotenv.dart';
 
 Future<void> main() async {
+  await DotEnv().load('.env');
   WidgetsFlutterBinding.ensureInitialized();
   // var notificationAppLaunchDetails =
   //     await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();

lib/page/account/createAccountEntryPage.dart

@@ -17,10 +17,9 @@ class CreateAccountEntryPage extends StatelessWidget {
         child: Column(
           children: <Widget>[
             Expanded(
-              child: Image.asset(
-                'assets/images/public/About_app.png',
-              )
-            ),
+                child: Image.asset(
+              'assets/images/public/About_app.png',
+            )),
             Padding(
               padding: EdgeInsets.all(16),
               child: RoundedButton(