# Runtime Events ## Auction Related | Event | Parameters | Description | Module | | -------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------- | -------------- | | NewCollateralAuction | 1. `AuctionId` : new collateral auction id\
2. `CurrencyId` : collateral type\
3. `Balance` : collateral amount\
4. `Balance` : target aUSD amount, when bid >= target, auction is in reverse stage\
| collateral auction created | AuctionManager | | NewDebitAuction | 1. `AuctionId` : auction id\
2. `Balance` : initial avalible ACA amount \
3. `Balance` : fixed aUSD amount, bid must >= it\
| debit auction created | AuctionManager | | NewSurplusAuction | 1. `AuctionId` : auction id\
2. `Balance` : aUSD amount of surplus\
| surplus auction created | AuctionManager | | CancelAuction | 1. `AuctionId` : auction id\
| auction canceled | AuctionManager | | AuctionDealed | 1. `AuctionId` : auction id\
| auction dealed | AuctionManager | | Bid | 1. `AuctionId` : auction id\
2. `AccountId` : bidder address \
3. `Balance` : bid price\
| bid succeeded | Auction | ## DEX Related | Event | Parameters | Description | Module | | ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- | ------ | | AddLiquidity | 1. `AccountId` : who add liquidity to pool\
2. `CurrencyId` : specific liquidity pool of **other token** / aUSD pair\
3. `Balance` : other token amount added\
4. `Balance` : aUSD amount added\
5. `Share` : increased share amount\
| add liquidity to specific pool | Dex | | WithdrawLiquidity | 1. `AccountId` : who withdraw liquidity from pool\
2. `CurrencyId` : specific liquidity pool of **other token** / aUSD pair\
3. `Balance` : other token amount withdrew \
4. `Balance` : aUSD amount withdrew\
5. `Share` : decreased share amount\
| withdraw liquidity from specific pool | Dex | | Swap | 1. `AccountId` : exchanger\
2. `CurrencyId` : the token type which exchanger sold to DEX \
3. `Balance` : amount of sold token \
4. `CurrencyId` : the token type which exchanger bought from DEX\
5. `Balance` : amount of bought token\
| swap token to another token with DEX | Dex | ## Homa Related | Event | Parameters | Description | Module | | ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------- | ----------- | | BondAndMint | 1. `AccountId` : caller\
2. `Balance` : DOT amount to bond by homa protocol \
3. `Balance` : issued LDOT amount to caller\
| lock DOT to Homa protocal and issue liquid DOT | StakingPool | | RedeemByUnbond | 1. `AccountId` : caller\
2. `Balance` : amount of LDOT to redeem\
| redeem DOT by normal unbonding | StakingPool | | RedeemByFreeUnbonded | 1. `AccountId` : caller\
2. `Balance` : fee in LDOT\
3. `Balance` : LDOT amount to redeem\
4. `Balance` : redeemed DOT amount\
| redeem DOT directly with Homa free pool | StakingPool | | RedeemByClaimUnbonding | 1. `AccountId` : caller\
2. `EraIndex`: target era index to claim redeption\
3. `Balance` : fee in LDOT\
4. `Balance` : LDOT amount to redeem\
5. `Balance` : redeemed DOT amount\
| redeem DOT by claiming unbonding | StakingPool | ## CDP Related | Event | Parameters | Description | Module | | ---------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | --------- | | Authorization | 1. `AccountId` : authorizer account\
2. `AccountId` : the authorized account\
3. `CurrencyId` : the authorized loan type\
| An account authorize other account to manipulate its specific type of loan | Honzon | | UnAuthorization | 1. `AccountId` : authorizer account\
2. `AccountId` : the authorized account\
3. `CurrencyId` : the authorized loan type\
| authorizer account revoke the right of authorized account to manipulate specific type of loan | Honzon | | UnAuthorizationAll | 1. `AccountId` : authorizer account\
| account revoked all authorization to other accounts with all loan types | Honzon | | LiquidateUnsafeCDP | 1. `CurrencyId` : collateral token type\
2. `AccountId` : owner of the liquidated CDP\
3. `Balance` : the confiscated amount for liquidation\
4. `Balance` : the bad debt amount(in aUSD) produced by the liquidated Cdp\
| liquidate an unsafe CDP | CdpEngine | | SettleCDPInDebit | 1. `CurrencyId` : collateral token type\
2. `AccountId` : owner of the settled CDP\
| settle a CDP has debit after emergency shutdown begin | CdpEngine | | UpdatePosition | 1. `AccountId` : CDP's owner\
2. `CurrencyId` : CDP's collateral type\
3. `Amount` : collateral adjustment amount, positive means collateral increased, negative means collateral decreased\
4. `DebitAmount` : debit adjustment amount, positive means CDP's debit increased and owner get more aUSD loan, negative means CDP's debit decreased and owner repay some debt\
| cdp owner manipulate his loan and collateral | Loans | | ConfiscateCollateralAndDebit | 1. `AccountId` : CDP's owner\
2. `CurrencyId` : CDP's collateral type\
3. `Balance` : collateral amount to be confiscated \
4. `DebitBalance` : debit balance to be confiscated \
| emit by system operations for CDPs, such as settlement, liquidation | Loans | | TransferLoan | 1. `AccountId` : sender\
2. `AccountId` : receiver\
3. `CurrencyId` : collateral type\
| sender transfer his whole specific collateral CDP(include all collateral amount and debit amount) to receiver | Loans | ## Emergency Shutdown Related | Event | Parameters | Description | Module | | ---------- | ---------------------------------------------------------------- | ------------------------- | ----------------- | | Shutdown | 1. `BlockNumber` : block number the emergency shutdown occurs | system emergency shutdown | EmergencyShutdown | | OpenRefund | 1. `BlockNumber` : block number when refund operation is allowed | refund operation opened | EmergencyShutdown | | Refund | 1. `Balance` : aUSD amount used to refund | refund succeeded | EmergencyShutdown | ## Risk Management Parameters Related | Event | Parameters | Description | Module | | ---------------------------------- | -------------------------------------------------------------------------------------------------------------------------- | ------------- | ----------- | | UpdateStabilityFee | 1. `CurrencyId` : collateral type\
2. `Option` : extra stalibity fee rate | param updated | CdpEngine | | UpdateLiquidationRatio | 1. `CurrencyId` : collateral type\
2. `Option` : liquidation ratio | param updated | CdpEngine | | UpdateLiquidationPenalty | 1. `CurrencyId` : collateral type\
2. `Option` : extra penalty rate when CDP liquidated | param updated | CdpEngine | | UpdateRequiredCollateralRatio | 1. `CurrencyId` : collateral type\
2. `Option` : the limit of collateral ratio when owner manipulate | param updated | CdpEngine | | UpdateMaximumTotalDebitValue | 1. `CurrencyId` : collateral type\
2. `Balance` : aUSD cap issued by this type of collateral | param updated | CdpEngine | | UpdateSurplusAuctionFixedSize | 1. `Balance` : fixed aUSD amount to be sold in a surplus auction\
| param updated | CdpTreasury | | UpdateSurplusBufferSize | 1. `Balance` : surplus pool buffer size, surplus auction is only created when surplus pool exceed it\
| param updated | CdpTreasury | | UpdateInitialAmountPerDebitAuction | 1. `Balance` : initial ACA amount to be sold in a debit auction\
| param updated | CdpTreasury | | UpdateDebitAuctionFixedSize | 1. `Balance` : fixed aUSD amount to buy a debit auction\
| param updated | CdpTreasury | | UpdateCollateralAuctionMaximumSize | 1. `CurrencyId` : collateral type\
2. `Balance` : max collateral amount to be sold when create new collateral auction | param updated | CdpTreasury | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://wiki.acala.network/build/miscellaneous/runtime-events.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.