Getting an Address from PAF Data
Postcode Address File (PAF) data allows you to get a Postal Address which you can then use to buy variables from the Catalog for this address.
Use a PAF Unique Delivery Point Reference Number (UDPRN) or a combination of UDPRN and UMRRN (for multiple residence properties) to get a postal address:
// 10 Downing Street, London, SW1A 2AA
var postalAddress1 = await client.GetAddressAsync(new PostalAddressFileKey(23747771));
// Room 104, 50 Central Point, Plymouth, PL1 1DZ
var postalAddress2 = await client.GetAddressAsync(new PostalAddressFileKey(51276198, 51276198));