getFilterChanges method
Get filter changes Polling method for a filter, which returns an list of logs which occurred since last poll. Filter Id Returns an EthereumFilter object or null
Implementation
Future<EthereumFilter?> getFilterChanges(int? filterId) async {
if (filterId == null) {
throw ArgumentError.notNull('Ethereum::getFilterChanges - filterId');
}
final params = <String>[EthereumUtilities.intToHex(filterId)];
const method = EthereumRpcMethods.getFilterChanges;
final dynamic res = await _client.rpcClient.request(method, params);
if (res != null && res.containsKey(EthereumConstants.ethResultKey)) {
return EthereumFilter.fromMap(res[EthereumConstants.ethResultKey]);
}
_client.processError(method, res);
return null;
}