fn get_user(env: soroban_sdk::Env, addr: soroban_sdk::Address) -> OptionStandard self-paid registration. The caller submits and pays for their own transaction (or it can still be fee-bumped transparently by a sponsor).
fn register_user(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
username: soroban_sdk::String,
encryption_pubkey: soroban_sdk::Bytes,
metadata_ipfs: soroban_sdk::Bytes,
)Number of actions a sponsor has paid for through this contract.
fn get_sponsored_count(env: soroban_sdk::Env, sponsor: soroban_sdk::Address) -> u32Fee-sponsored ("gasless") registration.
Intended to be submitted inside a Stellar fee-bump transaction whose
fee source is sponsor, so the new user spends no XLM.
sponsor.require_auth() — the sponsor explicitly consents to backing this
action, so on-chain sponsorship accounting cannot be forged.caller.require_auth() — the user still authorizes their own profile write.fn register_user_sponsored(
env: soroban_sdk::Env,
sponsor: soroban_sdk::Address,
caller: soroban_sdk::Address,
username: soroban_sdk::String,
encryption_pubkey: soroban_sdk::Bytes,
metadata_ipfs: soroban_sdk::Bytes,
)