Repay borrowed XLM.
fn repay(env: soroban_sdk::Env, user: soroban_sdk::Address, xlm_amount: i128)fn vault(env: soroban_sdk::Env) -> soroban_sdk::AddressBorrow XLM against deposited sXLM collateral.
fn borrow(env: soroban_sdk::Env, user: soroban_sdk::Address, xlm_amount: i128)Upgrade the contract WASM. Only callable by admin.
fn upgrade(env: soroban_sdk::Env, new_wasm_hash: soroban_sdk::BytesN<32>)Liquidate an unhealthy position. Liquidator repays debt and receives collateral + bonus.
fn liquidate(
env: soroban_sdk::Env,
liquidator: soroban_sdk::Address,
borrower: soroban_sdk::Address,
)Apply a governance-approved parameter change.
fn set_param(env: soroban_sdk::Env, key: soroban_sdk::Symbol, value: i128)Point this contract at the vault, once.
Needed only to migrate a contract deployed before the rate was read cross-contract. It can be set exactly once: naming the source is a different power from setting the price, and freezing it after the first write keeps an admin from later swapping in a vault that lies.
fn set_vault(env: soroban_sdk::Env, vault: soroban_sdk::Address)fn governance(env: soroban_sdk::Env) -> soroban_sdk::AddressInitialize the lending contract.
fn initialize(
env: soroban_sdk::Env,
admin: soroban_sdk::Address,
sxlm_token: soroban_sdk::Address,
native_token: soroban_sdk::Address,
collateral_factor_bps: u32,
liquidation_threshold_bps: u32,
borrow_rate_bps: u32,
vault: soroban_sdk::Address,
)Returns (collateral, borrowed) for a user.
fn get_position(env: soroban_sdk::Env, user: soroban_sdk::Address) -> (i128, i128)Bump instance TTL — can be called by anyone to keep contract alive.
fn bump_instance(env: soroban_sdk::Env)Returns health factor scaled by RATE_PRECISION (1e7 = 1.0). Uses liquidation threshold (not collateral factor) to match what liquidate() checks.
fn health_factor(env: soroban_sdk::Env, user: soroban_sdk::Address) -> i128Hand parameter control to the governance contract, once.
fn set_governance(env: soroban_sdk::Env, governance: soroban_sdk::Address)fn total_borrowed(env: soroban_sdk::Env) -> i128fn get_borrow_rate(env: soroban_sdk::Env) -> i128Pass accrued interest to the vault, raising the sXLM exchange rate.
Callable by anyone — it moves money in one direction only, from this contract to holders, so there is nothing to gain by calling it and nothing to lose by letting anyone.
The vault takes its own protocol fee out of what arrives, so this split
is on top of that one: VaultShareBps reaches holders and the remainder
stays here as protocol revenue.
fn settle_interest(env: soroban_sdk::Env) -> i128fn get_borrow_index(env: soroban_sdk::Env) -> i128fn get_pool_balance(env: soroban_sdk::Env) -> i128fn total_collateral(env: soroban_sdk::Env) -> i128fn get_exchange_rate(env: soroban_sdk::Env) -> i128Deposit sXLM as collateral.
fn deposit_collateral(
env: soroban_sdk::Env,
user: soroban_sdk::Address,
sxlm_amount: i128,
)Update the borrow rate. Only callable by admin.
fn update_borrow_rate(env: soroban_sdk::Env, new_rate_bps: u32)fn get_max_utilization(env: soroban_sdk::Env) -> i128fn get_vault_share_bps(env: soroban_sdk::Env) -> i128Withdraw sXLM collateral if health factor stays above 1.0.
fn withdraw_collateral(
env: soroban_sdk::Env,
user: soroban_sdk::Address,
sxlm_amount: i128,
)fn get_collateral_factor(env: soroban_sdk::Env) -> i128fn get_liquidation_bonus(env: soroban_sdk::Env) -> i128Interest charged to borrowers and not yet passed to the vault.
fn total_accrued_interest(env: soroban_sdk::Env) -> i128Update the recursion cap. Only callable by admin.
fn update_max_utilization(env: soroban_sdk::Env, new_bps: u32)fn get_liquidation_fee_bps(env: soroban_sdk::Env) -> i128Update the collateral factor. Only callable by admin.
fn update_collateral_factor(env: soroban_sdk::Env, new_cf_bps: u32)fn get_liquidation_threshold(env: soroban_sdk::Env) -> i128Update the liquidation threshold. Only callable by admin.
fn update_liquidation_threshold(env: soroban_sdk::Env, new_lt_bps: u32)