public override async Task <BuiltTransactionResponse> BuildTransaction(BuildTransactionRequest request, ServerCallContext context) { var res = await _transferService.BuildTransactionAsync( Guid.Parse(request.OperationId), request.BlockchainId, request.BlockchainAssetId, request.FromAddress, request.FromAddressContext, request.ToAddress, request.Amount, request.IncludeFee); var response = new BuiltTransactionResponse() { TransactionContext = res }; return(response); }