Open Source PEK Android Wallet... Hive Dart

The Android App is coming along...

hive_engine_serivce_dart

import 'dart:convert';
import 'package:http/http.dart' as http;

class HiveEngineService {
  static const String _apiUrl = 'https://api.hive-engine.com/rpc';

  // Get PEK balance for a given account
  static Future<double> getPekBalance(String account) async {
    final response = await http.post(
      Uri.parse(_apiUrl),
      headers: {'Content-Type': 'application/json'},
      body: jsonEncode({
        'jsonrpc': '2.0',
        'id': 1,
        'method': 'find',
        'params': {
          'contract': 'tokens',
          'table': 'balances',
          'query': {'account': account, 'symbol': 'PEK'},
          'limit': 1
        }
      }),
    );
    if (response.statusCode == 200) {
      final data = jsonDecode(response.body);
      if (data['result'] != null && data['result'].isNotEmpty) {
        return double.tryParse(data['result'][0]['balance'] ?? '0') ?? 0.0;
      }
      return 0.0;
    } else {
      throw Exception('Failed to load balance');
    }
  }

  // Transfer PEK tokens
  static Future<String> transferPek({
    required String from,
    required String to,
    required String amount,
    required String activeKey,
    String memo = '',
  }) async {
    // This is a placeholder. Real transfer requires signing a custom JSON transaction
    // with the user's Hive active key, which should be handled securely.
    // For a real wallet, use hive_keychain or hive_signer integration.
    throw UnimplementedError('Token transfer must be implemented with proper signing.');
  }

  // Listen for incoming PEK transfers (polling example)
  static Future<List<Map<String, dynamic>>> getRecentPekTransfers(String account) async {
    final response = await http.post(
      Uri.parse(_apiUrl),
      headers: {'Content-Type': 'application/json'},
      body: jsonEncode({
        'jsonrpc': '2.0',
        'id': 1,
        'method': 'find',
        'params': {
          'contract': 'tokens',
          'table': 'transfers',
          'query': {
            '