getTokenBalance method

@override Future<double> getTokenBalance({ required String address, required String namespace, required String chainId, })

Implementation

@override
Future<double> getTokenBalance({
  required String address,
  required String namespace,
  required String chainId,
}) async {
  final uri = Uri.parse(_baseUrl);
  final queryParams = {..._requiredParams, 'chainId': chainId};
  final url = uri.replace(queryParameters: queryParams);
  final body = jsonEncode({
    'id': 1,
    'jsonrpc': '2.0',
    'method': _balanceMetod(namespace),
    'params': [
      address,
      if (namespace == NetworkUtils.eip155) 'latest',
    ],
  });
  final response = await http.post(
    url,
    headers: _requiredHeaders,
    body: body,
  );
  _core.logger.i(
    '[$runtimeType] getTokenBalance $url, $body => ${response.body}',
  );
  if (response.statusCode == 200 && response.body.isNotEmpty) {
    try {
      return _parseBalanceResult(namespace, response.body);
    } catch (e) {
      _core.logger.e('[$runtimeType] getTokenBalance, parse error => $e');
      throw Exception('Failed to load balance. $e');
    }
  }
  try {
    final reason = _parseResponseError(response.body);
    throw Exception(reason);
  } catch (e) {
    _core.logger.e('[$runtimeType] getTokenBalance, decode error => $e');
    rethrow;
  }
}