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https://hub.docker.com/r/dolomiteprotocol/liquidator
https://github.com/dolomite-exchange/liquidator/blob/master/LICENSE
Dolomite Margin Liquidator
Bot to automatically liquidate undercollateralized and expired Dolomite accounts.
Usage
Docker
Requires a running docker engine.
docker run \ -e ACCOUNT_WALLET_ADDRESS=0x2c7536E3605D9C16a7a3D7b1898e529396a65c23 \ -e ACCOUNT_WALLET_PRIVATE_KEY=0x4c0883a69102937d6231471b5dbb6204fe5129617082792ae468d01a3f362318 \ -e COLLATERAL_PREFERENCES=<SET IF LIQUIDATION_MODE IS `Simple`; IE "COLLATERAL_PREFERENCES=0,1,2"> \ -e DOLOMITE_ACCOUNT_NUMBER=0 \ -e ETHEREUM_NODE_URL=https://matic-mumbai.chainstacklabs.com \ -e LIQUIDATION_MODE=Simple|Generic \ -e NETWORK_ID=80001 \ -e OWED_PREFERENCES=<SET IF LIQUIDATION_MODE IS `Simple`; IE "OWED_PREFERENCES=2,1,0"> \ -e SEQUENTIAL_TRANSACTION_DELAY_MS=1000 \ -e SUBGRAPH_URL=https://api.thegraph.com/subgraphs/name/dolomite-exchange/dolomite-v2-liquidator-mumbai \ dolomiteprotocol/liquidator
Overview
This service will automatically liquidate undercollateralized and/or expired accounts on Dolomite.
This bot works for Dolomite (Margin-Trading) accounts. Use the envvars LIQUIDATIONS_ENABLED, ASYNC_ACTIONS_ENABLED,
and EXPIRATIONS_ENABLED to control what kind of liquidations to perform.
Liquidations on Dolomite happen internally between Accounts, so you will need an already-funded Dolomite Account to
use this liquidator bot. If you use the default of DOLOMITE_ACCOUNT_NUMBER=0, you can fund your Dolomite Margin
Account on app.dolomite.io.
Successfully liquidating Accounts will modify your Dolomite Account balances. You can liquidate assets you do not have in your Account provided you have another asset as collateral, which will just cause your Dolomite Account Balance to go negative in that asset.
Dolomite Liquidations
Liquidations on Dolomite reward a 5% spread on top of the current oracle prices for the assets being liquidated and used as collateral. Example:
Undercollateralized Account:
+2 ETH -350 DAI
Liquidator Account:
+100 ETH -1000 DAI
Oracle Prices:
ETH Oracle Price: $200 DAI Oracle Price: $1
Fully liquidating this account would cause 350 DAI to be paid to zero out its balance, and would reward
350 DAI * ($1/DAI / $200/ETH) * 1.05 = 1.8375 ETH as payout. After the liquidation the account balances would be:
Undercollateralized Account:
+0.1625 ETH 0 DAI
Liquidator Account:
+101.8375 ETH -1350 DAI
Configuration
Environment Variables
| ENV Variable | Description |
|---|---|
| ACCOUNT_POLL_INTERVAL_MS | How frequently to poll for liquidatable accounts. Defaults to 5000 milliseconds. |
| ACCOUNT_WALLET_ADDRESS | REQUIRED *** address of the Dolomite account owner that will do the liquidations. |
| ACCOUNT_WALLET_PRIVATE_KEY | REQUIRED *** private key the Dolomite account owner that will do the liquidations. Make sure that "0x" is at the start of it (MetaMask exports private keys without it). |
| ASYNC_ACTIONS_ENABLED | Whether to perform async liquidations for protocols like GMX V2. Defaults to false. |
| ASYNC_ACTIONS_KEY_EXPIRATION_SECONDS | Amount of time in seconds to wait before trying to retry an async action again. Defaults to 60 seconds. |
| ASYNC_ACTIONS_POLL_INTERVAL_MS | How frequently to poll for retryable async actions. Defaults to 5000 milliseconds. |
| AUTO_DOWN_FREQUENCY_SECONDS | The duration in seconds after the bot starts that it should be automatically killed, so AWS (or whichever cloud provider being used) can restart the docker container. Useful in case the bot ever gets stuck. Defaults none undefined. |
| BALANCE_POLL_INTERVAL_MS | How frequently to poll for the latest balance data from the protocol for processing liquidations. Defaults to 60000 milliseconds. |
| BLOCK_POLL_INTERVAL_MS | How frequently to poll for the latest block number. Defaults to 5000 milliseconds. |
| COLLATERAL_PREFERENCES | CONDITIONALLY REQUIRED A list of preferences for which collateral markets to receive first when liquidating. This variable is only required if LIQUIDATION_MODE is set to Simple. For example 1,2,4 (a string separated by commas) |
| DOLOMITE_ACCOUNT_NUMBER | REQUIRED The Dolomite account number to use for the liquidating account. If you're not sure what this is, use 0. This will show up on app.dolomite.io if you connect with the same wallet. |
| ***_NODE_URL | REQUIRED The URL of the *** node to use (e.g. an Alchemy or Infura endpoint). |
| EXPIRATIONS_ENABLED | Whether to liquidate expired accounts. Defaults to true. |
| EXPIRED_ACCOUNT_DELAY_SECONDS | How long to wait before liquidating expired accounts. The spread for liquidating expired accounts ramps up linearly from 0% to 5% over 5 minutes on *** One. Defaults to 300 seconds. |
| GAS_ESTIMATION_ENABLED | Whether or not gas estimation should be done dynamically or a large static value should be set. Defaults to true. |
| GAS_PRICE_ADDITION_WEI | How much to add to the gas price when sending transactions. This value is added after the GAS_PRICE_MULTIPLIER is applied. Defaults to 0 but it is recommended users set this variable to something higher. |
| GAS_PRICE_MULTIPLIER | How much to multiply the fast gas price by when sending transactions. Defaults to 1 but it is recommended users set this variable to something higher. |
| GAS_PRICE_POLL_INTERVAL_MS | How frequently to update the gas price. Defaults to 15000 milliseconds. |
| GAS_SPIKE_PROTECTION | Whether to skip liquidations whose reward is less than the fee needed to submit the transaction. Defaults to true. |
| GAS_SPIKE_THRESHOLD_USD | The threshold that a gas spike check is no longer ignored. Defaults to 100000000000000000000000000000000000 ($0.10). Meaning, unprofitable liquidations will only be ignored when gas rises past $0.10 |
| GLV_LIQUIDITY_POLL_ENABLED | Whether to track each GLV asset's GM liquidity. Defaults to false. Must have permission to update them onchain. |
| GLV_LIQUIDITY_POLL_INTERVAL_MS | The time between pings for checking if GLV markets need to have their deposit/withdrawal GM market changed. Defaults to 15000 (15 seconds) |
| IGNORED_MARKETS | Any position containing these markets will be ignored. Defaults to nothing (an empty list). An example list is 1,2,4 (a string of market IDs separated by commas) |
| INITIAL_GAS_PRICE_WEI | The initial gas price used by the bot until the first successful poll occurs. Defaults to 10000000000 wei (10 gwei). |
| LIQUIDATE_POLL_INTERVAL_MS | How frequently the bot should use current account, price, and market index data to check for liquidatable accounts and, if necessary, commit any liquidations on***. Defaults to 5000 milliseconds. |
| LIQUIDATION_KEY_EXPIRATION_SECONDS | Amount of time in seconds to wait before trying to liquidate the same account again. Defaults to 60 seconds. |
| LIQUIDATION_MODE | REQUIRED Must be one of Simple, SellWithInternalLiquidity, or Generic. Simple performs liquidations from the solid account and leaves the debt in there. SellWithInternalLiquidity attempts the liquidation using Dolomite's internal liquidity. Generic uses any combination of external or internal liquidity to perform the liquidations. |
| LIQUIDATIONS_ENABLED | Whether to liquidate Dolomite accounts or not. Defaults to true. |
| MARKET_POLL_INTERVAL_MS | How frequently to market information (including which markets exist, oracle prices, and margin premium information). Defaults to 5000 milliseconds. |
| MIN_ACCOUNT_COLLATERALIZATION | The desired minimum collateralization of the liquidator account after completing a simple liquidation. Prevents the liquidator account from being at risk of being liquidated itself if the price of assets continues to move in some direction. Higher values are safer. e.g. 0.5 = 150% collateralization. This value is only used if LIQUIDATION_MODE is set to Simple. Defaults to 0.50 (150% collateralization). |
| MIN_VALUE_LIQUIDATED | The minimum amount of debt required for a liquidation to be processed. Defaults to 1000000000000000000000000000000000 ($0.001 USD). |
| MIN_VALUE_LIQUIDATED_FOR_GENERIC_SELL | If the amount to be liquidated for LIQUIDATION_MODE=SellWithInternalLiquidity|Generic is less than this amount, fallback to LIQUIDATION_MODE=Simple. Defaults to 1000000000000000000000000000000000000 (0.1e36; $0.1 USD). |
| NETWORK_ID | REQUIRED *** Network ID. This must match the chain ID sent back from ETHEREUM_NODE_URL. |
| OWED_PREFERENCES | CONDITIONALLY REQUIRED A list of preferences for which markets to liquidate first on an account when liquidating. This variable is only required if LIQUIDATION_MODE is set to Simple. |
| RISK_PARAMS_POLL_INTERVAL_MS | How frequently to poll for risk params updates in milliseconds. Defaults to 30000 milliseconds. |
| SEQUENTIAL_TRANSACTION_DELAY_MS | REQUIRED How long to wait between sending liquidation/expiration transactions. Useful for ensuring the liquidator's nonce is always correct and the Dolomite market price has time to reach e*** between many sequential liquidations, in case these sequential liquidations push the price far away from the Chainlink oracle price. |
| SUBGRAPH_URL | REQUIRED The URL of the subgraph instance that contains margin account information. For *** One, the default URL is https://api.thegraph.com/subgraphs/name/dolomite-exchange/dolomite-v2-arbitrum |
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