Asset
The Asset in the DMEX smart contract is a fundamental object that defines the asset being traded in the futures contract. The Asset comprises of the following information:
Parameter | Type | Value |
baseToken | address | the token used for margin (0x000... in the ETH case) |
priceUrl | string | the url where the Oracle will take the settlement price from |
pricePath | string | the JSON parameter inside the priceUrl that represent the last traded price |
disabled | bool | if true, the asset cannot be used in contract creation (when priceUrl no longer valid or decimals have changed) |
decimals | uint256 | number of decimals in the price |
Every Asset has a unique hash. That unique hash is used in the “Asset” parameter when creating a new Futures Contract. There can be no two assets with different parameters but the same hash because all parameters are part of the hash, therefore a change in parameters would result in a new unique asset hash.
bytes32 futuresAssetHash = keccak256(this,baseToken,priceUrl,pricePath,decimals);