I’m looking at migrating to the V3 API. Our users purchase a license key from a web store, and a 'bot generates them a key and emails it to them. With the new V3 API, in order to find a license by username or email address, I have to create a user for them. This part is easy.
If a user is a repeat customer, I would like the system to find their existing account by searching the user database for the email address, but I cannot find a search API for users in the documentation. I could list all users until I find them, but that seems like a bad idea. Is this supported, and if not, could it be added relatively easily?