Is PackageId fixed for the exchanges?
Can we use packageID instead of subscription ID. directly for downloading the data?
Do we have any date rage to use along with packageId instead of subscription ID?
The reason the procedure is to check, is that there is no guarantee. We do not expect this to change often, but when creating an app that implements automatic retrieval, I would avoid relying on this. Hope this explanation makes sense.
No date range is available or can be specified for VBD. Only previous day's data is available via this request. To request date range, please review other requests, for example Tick HistoryTimeAndSales, depending on your requirements.
To request and process VBD (Venue By Date):
1. Retrieve the list of files associated with packageId with their corresponding PackageDeliveryIds
2. Download the corresponding file(s) by PackageDeliveryId
The VBDs contain the totality of data per venue, for the previous day, so there is no date range.