Collateral types
Use the
'mcd:cdpType' service to look up parameters for different collateral types in the system. In the code, this is called CdpTypeService.const service = maker.service('mcd:cdpType');
service.cdpTypes.forEach(type => console.log(type.ilk));
// ETH-A
// BAT-A
// USDC-A
// this will error if more than one type is defined for ETH
const type = service.getCdpType(ETH);
// disambiguate using the ilk name string:
const ethA = service.getCdpType(null, 'ETH-A');
The name of the collateral type as a string, e.g. "ETH-A".
The total amount of collateral locked in all vaults of this collateral type.
The total Dai debt drawn against all vaults of this collateral type.
The debt ceiling for this collateral type.
Vaults of this type become unsafe (subject to liquidation) when their ratio between USD value of collateral and Dai drawn is less than or equal to this amount.
The USD price of this collateral type's token, using recent price feed data, as a currency ratio. (See "A note on caching" above).
console.log(type.price.toString()); // "9000.01 ETH/USD"
The penalty added to the Dai amount to be raised at auction when a vault is liquidated, as a percentage. e.g. if the penalty is 13%, this value will be
BigNumber(0.13).The annual stability fee (risk premium) of the collateral type, not including the base rate, as a BigNumber. e.g. if the rate is 5%, this value will be
BigNumber(0.05).When a vault instance is created, its data is pre-fetched from the blockchain, allowing the properties below to be read synchronously. This data is cached in the instance. To refresh this data, do the following:
vault.reset();
await vault.prefetch();
To refresh the data for all collateral type instances at once:
service.resetAllCdpTypes();
await service.prefetchAllCdpTypes();
Last modified 3yr ago