# Solidity Interface Reference ## ConstantsBS ### FEED\_ID\_FUTURE ```solidity uint32 FEED_ID_FUTURE ``` ### FEED\_ID\_MODEL\_PARAMS ```solidity uint32 FEED_ID_MODEL_PARAMS ``` ### FEED\_ID\_SPOT ```solidity uint32 FEED_ID_SPOT ``` ### FEED\_ID\_INTEREST\_RATE ```solidity uint32 FEED_ID_INTEREST_RATE ``` ### FEED\_ID\_SETTLEMENT\_PRICE ```solidity uint32 FEED_ID_SETTLEMENT_PRICE ``` ### FEED\_ID\_IMPLIED\_VOLATILITY ```solidity uint32 FEED_ID_IMPLIED_VOLATILITY ``` ### FEED\_ID\_OPTION\_MARK\_PRICE ```solidity uint32 FEED_ID_OPTION_MARK_PRICE ``` ### FEED\_ID\_SPOT\_EQUITY ```solidity uint32 FEED_ID_SPOT_EQUITY ``` ### EXPIRY\_TYPE\_TIMESTAMP ```solidity uint8 EXPIRY_TYPE_TIMESTAMP ``` ### EXPIRY\_TYPE\_TENOR ```solidity uint8 EXPIRY_TYPE_TENOR ``` ### EXCHANGE\_BLOCKSCHOLES ```solidity uint8 EXCHANGE_BLOCKSCHOLES ``` ### EXCHANGE\_DERIBIT ```solidity uint8 EXCHANGE_DERIBIT ``` ### EXCHANGE\_BYBIT ```solidity uint8 EXCHANGE_BYBIT ``` ### EXCHANGE\_OKX ```solidity uint8 EXCHANGE_OKX ``` ### BASE\_ASSET\_BTC ```solidity uint8 BASE_ASSET_BTC ``` ### BASE\_ASSET\_ETH ```solidity uint8 BASE_ASSET_ETH ``` ### BASE\_ASSET\_SPY ```solidity uint8 BASE_ASSET_SPY ``` ### BASE\_ASSET\_IBIT ```solidity uint8 BASE_ASSET_IBIT ``` ### OPTION\_TYPE\_CALL ```solidity uint8 OPTION_TYPE_CALL ``` ### OPTION\_TYPE\_PUT ```solidity uint8 OPTION_TYPE_PUT ``` ### IV\_LEVEL\_TYPE\_STRIKE ```solidity uint8 IV_LEVEL_TYPE_STRIKE ``` ### IV\_LEVEL\_TYPE\_MONEYNESS ```solidity uint8 IV_LEVEL_TYPE_MONEYNESS ``` ### SVI\_PARAM\_A ```solidity uint8 SVI_PARAM_A ``` ### SVI\_PARAM\_B ```solidity uint8 SVI_PARAM_B ``` ### SVI\_PARAM\_RHO ```solidity uint8 SVI_PARAM_RHO ``` ### SVI\_PARAM\_M ```solidity uint8 SVI_PARAM_M ``` ### SVI\_PARAM\_SIGMA ```solidity uint8 SVI_PARAM_SIGMA ``` ## IFeedProviderBS *common interface for feed providers to implement* ### Feed *identifier for a single feed* ```solidity struct Feed { uint32 id; struct IFeedProviderBS.FeedParameters parameters; } ``` ### FeedParameters *parameters for a feed* ```solidity struct FeedParameters { uint8[] enumerable; bytes other; } ``` ### FeedData *output data for a feed* ```solidity struct FeedData { int64 value; uint32 timestamp; } ``` ### getLatestFeedData ```solidity function getLatestFeedData(struct IFeedProviderBS.Feed feed) external view returns (struct IFeedProviderBS.FeedData) ``` *get the latest feed data* #### Parameters | Name | Type | Description | | ---- | --------------------------- | ------------------------ | | feed | struct IFeedProviderBS.Feed | the feed to get data for | #### Return Values | Name | Type | Description | | ---- | ------------------------------- | -------------------- | | \[0] | struct IFeedProviderBS.FeedData | the latest feed data | ## IOracleBS the public interface for the Oracle as a whole ### OptionParameters The feed parameters for the option price and SVI feeds - these should be abi encoded and passed in as the "other" feed parameters. ```solidity struct OptionParameters { int64 expiry; int64 ivLevelValue; } ``` ### RouteDoesNotExist ```solidity error RouteDoesNotExist() ``` error emitted when a route does not exist for the specified feed ID ### FeedProviderDoesNotExist ```solidity error FeedProviderDoesNotExist() ``` error emitted when a feed provider cannot be found for the specified feed ID *this indicates a configuration error with how the route was set up* ### PermissionDenied ```solidity error PermissionDenied() ``` error emitted when a client does not have permission to access the specified feed. *permissions are based on the feed ID and enumerable feed parameters* --- # 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://docs.blockscholes.com/blockchain-oracle/push-based-oracle/interface.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.