How did you manage to do it? Could it be invite as a service?
Discussion
Oh nvm I thought this is a reply to another note.
Cool!
The parameters are attached to the link, and the app parses them to find the user. However, the link will be relatively long.
How does it limit to 1 invite?
The one-time keypackage shared by the inviter is stored locally and marked there. Once an invitee uses it and sends a group creation request, it is marked as used. If another person tries to use it afterward, the request will be rejected.
More importantly, the one-time keypackage is only included in the link and is never sent to the relay.