private string GetEncodedTransactionData(IInternalTransaction transaction)
{
var txMetadata = transaction.TransactionMetadata;
// If CrossApplicationReferrerTripId is null, then this is the first transaction to make an external request. In this case, use its Guid as the tripId.
var tripId = txMetadata.CrossApplicationReferrerTripId ?? transaction.Guid;
var transactionData = new CrossApplicationRequestData(transaction.Guid, false, tripId, txMetadata.LatestCrossApplicationPathHash);
return(HeaderEncoder.EncodeSerializedData(JsonConvert.SerializeObject(transactionData), _configurationService.Configuration.EncodingKey));
}