diff options
Diffstat (limited to 'packages/pipeline/src/parsers/events/index.ts')
| -rw-r--r-- | packages/pipeline/src/parsers/events/index.ts | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/packages/pipeline/src/parsers/events/index.ts b/packages/pipeline/src/parsers/events/index.ts index 7a0ead0d4..d56dc7080 100644 --- a/packages/pipeline/src/parsers/events/index.ts +++ b/packages/pipeline/src/parsers/events/index.ts @@ -18,19 +18,38 @@ export const parseExchangeEvents: ( eventLogs: Array<LogWithDecodedArgs<ExchangeEventArgs>>, ) => ExchangeEventEntity[] = R.map(_convertToEntity); +/** + * Converts a raw event log to an Entity. Automatically detects the type of + * event and returns the appropriate entity type. Throws for unknown event + * types. + * @param eventLog Raw event log (e.g. returned from contract-wrappers). + */ export function _convertToEntity(eventLog: LogWithDecodedArgs<ExchangeEventArgs>): ExchangeEventEntity { switch (eventLog.event) { case 'Fill': + // tslint has a false positive here. We need to type assert in order + // to change the type argument to the more specific + // ExchangeFillEventArgs. + // tslint:disable-next-line:no-unnecessary-type-assertion return _convertToExchangeFillEvent(eventLog as LogWithDecodedArgs<ExchangeFillEventArgs>); case 'Cancel': + // tslint:disable-next-line:no-unnecessary-type-assertion return _convertToExchangeCancelEvent(eventLog as LogWithDecodedArgs<ExchangeCancelEventArgs>); case 'CancelUpTo': + // tslint:disable-next-line:no-unnecessary-type-assertion return _convertToExchangeCancelUpToEvent(eventLog as LogWithDecodedArgs<ExchangeCancelUpToEventArgs>); default: + // Another false positive here. We are adding two strings, but + // tslint seems confused about the types. + // tslint:disable-next-line:restrict-plus-operands throw new Error('unexpected eventLog.event type: ' + eventLog.event); } } +/** + * Converts a raw event log for a fill event into an ExchangeFillEvent entity. + * @param eventLog Raw event log (e.g. returned from contract-wrappers). + */ export function _convertToExchangeFillEvent(eventLog: LogWithDecodedArgs<ExchangeFillEventArgs>): ExchangeFillEvent { const makerAssetData = assetDataUtils.decodeAssetDataOrThrow(eventLog.args.makerAssetData); const makerAssetType = makerAssetData.assetProxyId === AssetProxyId.ERC20 ? 'erc20' : 'erc721'; @@ -55,15 +74,23 @@ export function _convertToExchangeFillEvent(eventLog: LogWithDecodedArgs<Exchang exchangeFillEvent.makerAssetType = makerAssetType; exchangeFillEvent.makerAssetProxyId = makerAssetData.assetProxyId; exchangeFillEvent.makerTokenAddress = makerAssetData.tokenAddress; + // tslint has a false positive here. Type assertion is required. + // tslint:disable-next-line:no-unnecessary-type-assertion exchangeFillEvent.makerTokenId = bigNumbertoStringOrNull((makerAssetData as ERC721AssetData).tokenId); exchangeFillEvent.rawTakerAssetData = eventLog.args.takerAssetData; exchangeFillEvent.takerAssetType = takerAssetType; exchangeFillEvent.takerAssetProxyId = takerAssetData.assetProxyId; exchangeFillEvent.takerTokenAddress = takerAssetData.tokenAddress; + // tslint:disable-next-line:no-unnecessary-type-assertion exchangeFillEvent.takerTokenId = bigNumbertoStringOrNull((takerAssetData as ERC721AssetData).tokenId); return exchangeFillEvent; } +/** + * Converts a raw event log for a cancel event into an ExchangeCancelEvent + * entity. + * @param eventLog Raw event log (e.g. returned from contract-wrappers). + */ export function _convertToExchangeCancelEvent( eventLog: LogWithDecodedArgs<ExchangeCancelEventArgs>, ): ExchangeCancelEvent { @@ -86,15 +113,22 @@ export function _convertToExchangeCancelEvent( exchangeCancelEvent.makerAssetType = makerAssetType; exchangeCancelEvent.makerAssetProxyId = makerAssetData.assetProxyId; exchangeCancelEvent.makerTokenAddress = makerAssetData.tokenAddress; + // tslint:disable-next-line:no-unnecessary-type-assertion exchangeCancelEvent.makerTokenId = bigNumbertoStringOrNull((makerAssetData as ERC721AssetData).tokenId); exchangeCancelEvent.rawTakerAssetData = eventLog.args.takerAssetData; exchangeCancelEvent.takerAssetType = takerAssetType; exchangeCancelEvent.takerAssetProxyId = takerAssetData.assetProxyId; exchangeCancelEvent.takerTokenAddress = takerAssetData.tokenAddress; + // tslint:disable-next-line:no-unnecessary-type-assertion exchangeCancelEvent.takerTokenId = bigNumbertoStringOrNull((takerAssetData as ERC721AssetData).tokenId); return exchangeCancelEvent; } +/** + * Converts a raw event log for a cancelUpTo event into an + * ExchangeCancelUpToEvent entity. + * @param eventLog Raw event log (e.g. returned from contract-wrappers). + */ export function _convertToExchangeCancelUpToEvent( eventLog: LogWithDecodedArgs<ExchangeCancelUpToEventArgs>, ): ExchangeCancelUpToEvent { |