diff options
Diffstat (limited to 'packages/pipeline/src/data_sources/contract-wrappers/erc20_events.ts')
-rw-r--r-- | packages/pipeline/src/data_sources/contract-wrappers/erc20_events.ts | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/packages/pipeline/src/data_sources/contract-wrappers/erc20_events.ts b/packages/pipeline/src/data_sources/contract-wrappers/erc20_events.ts deleted file mode 100644 index e0098122f..000000000 --- a/packages/pipeline/src/data_sources/contract-wrappers/erc20_events.ts +++ /dev/null @@ -1,45 +0,0 @@ -import { - ContractWrappers, - ERC20TokenApprovalEventArgs, - ERC20TokenEvents, - ERC20TokenWrapper, -} from '@0x/contract-wrappers'; -import { Web3ProviderEngine } from '@0x/subproviders'; -import { LogWithDecodedArgs } from 'ethereum-types'; - -import { GetEventsFunc, getEventsWithPaginationAsync } from './utils'; - -export class ERC20EventsSource { - private readonly _erc20Wrapper: ERC20TokenWrapper; - private readonly _tokenAddress: string; - constructor(provider: Web3ProviderEngine, networkId: number, tokenAddress: string) { - const contractWrappers = new ContractWrappers(provider, { networkId }); - this._erc20Wrapper = contractWrappers.erc20Token; - this._tokenAddress = tokenAddress; - } - - public async getApprovalEventsAsync( - startBlock: number, - endBlock: number, - ): Promise<Array<LogWithDecodedArgs<ERC20TokenApprovalEventArgs>>> { - return getEventsWithPaginationAsync( - this._getApprovalEventsForRangeAsync.bind(this) as GetEventsFunc<ERC20TokenApprovalEventArgs>, - startBlock, - endBlock, - ); - } - - // Gets all approval events of for a specific sub-range. This getter - // function will be called during each step of pagination. - private async _getApprovalEventsForRangeAsync( - fromBlock: number, - toBlock: number, - ): Promise<Array<LogWithDecodedArgs<ERC20TokenApprovalEventArgs>>> { - return this._erc20Wrapper.getLogsAsync<ERC20TokenApprovalEventArgs>( - this._tokenAddress, - ERC20TokenEvents.Approval, - { fromBlock, toBlock }, - {}, - ); - } -} |