New liquidation (option 2): each market maintains a list of opt-in liquidators

uint commented 2 years ago

For every market we need a list of LIQUIDATORS. Anyone with money deposited in the market can add themself to the opt-in LIQUIDATORS list. Being on the list means you're willing to use a portion (you choose, it's the Decimal value below) of your collateral to pay off someone's debt.

LIQUIDATORS: Map<&Addr, Decimal> // in the range of [0, 1]

We need:

an exec msg that lets a user change their liquidator status (opt in, opt out, change portion)
a query to get a specific account's Option<LiquidatorStatus>
a query to list all the liquidators for this market Vec<LiquidatorStatus>

struct LiquidatorStatus {
    portion: Decimal,
    available_collateral: Coin, // deposit * portion
}

uint commented 2 years ago

This is if we decide to do option 2 from slab: https://confio.slab.com/posts/liquidations-hopfal2s

uint commented 2 years ago

Closing. We're going with option 1.

osmosis-labs / isotonic

New liquidation (option 2): each market maintains a list of opt-in liquidators #82