diff options
Diffstat (limited to 'packages/order-watcher/src/order_watcher/event_watcher.ts')
-rw-r--r-- | packages/order-watcher/src/order_watcher/event_watcher.ts | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/packages/order-watcher/src/order_watcher/event_watcher.ts b/packages/order-watcher/src/order_watcher/event_watcher.ts index 08ecf81cb..9509c75de 100644 --- a/packages/order-watcher/src/order_watcher/event_watcher.ts +++ b/packages/order-watcher/src/order_watcher/event_watcher.ts @@ -1,6 +1,6 @@ -import { BlockParamLiteral, LogEntry } from '@0xproject/types'; import { intervalUtils, logUtils } from '@0xproject/utils'; import { Web3Wrapper } from '@0xproject/web3-wrapper'; +import { BlockParamLiteral, LogEntry, Provider } from 'ethereum-types'; import { Block, BlockAndLogStreamer, Log } from 'ethereumjs-blockstream'; import * as _ from 'lodash'; @@ -19,22 +19,22 @@ enum LogEventState { * depth. */ export class EventWatcher { - private _web3Wrapper: Web3Wrapper; + private readonly _web3Wrapper: Web3Wrapper; + private readonly _stateLayer: BlockParamLiteral; + private readonly _isVerbose: boolean; private _blockAndLogStreamerIfExists: BlockAndLogStreamer<Block, Log> | undefined; private _blockAndLogStreamIntervalIfExists?: NodeJS.Timer; private _onLogAddedSubscriptionToken: string | undefined; private _onLogRemovedSubscriptionToken: string | undefined; - private _pollingIntervalMs: number; - private _stateLayer: BlockParamLiteral; - private _isVerbose: boolean; + private readonly _pollingIntervalMs: number; constructor( - web3Wrapper: Web3Wrapper, + provider: Provider, pollingIntervalIfExistsMs: undefined | number, - stateLayer: BlockParamLiteral = BlockParamLiteral.Latest, + stateLayer: BlockParamLiteral, isVerbose: boolean, ) { this._isVerbose = isVerbose; - this._web3Wrapper = web3Wrapper; + this._web3Wrapper = new Web3Wrapper(provider); this._stateLayer = stateLayer; this._pollingIntervalMs = _.isUndefined(pollingIntervalIfExistsMs) ? DEFAULT_EVENT_POLLING_INTERVAL_MS @@ -61,13 +61,9 @@ export class EventWatcher { if (!_.isUndefined(this._blockAndLogStreamerIfExists)) { throw new Error(OrderWatcherError.SubscriptionAlreadyPresent); } - const eventFilter = { - fromBlock: this._stateLayer, - toBlock: this._stateLayer, - }; this._blockAndLogStreamerIfExists = new BlockAndLogStreamer( - this._web3Wrapper.getBlockAsync.bind(this._web3Wrapper, this._stateLayer), - this._web3Wrapper.getLogsAsync.bind(this._web3Wrapper, eventFilter), + this._web3Wrapper.getBlockAsync.bind(this._web3Wrapper), + this._web3Wrapper.getLogsAsync.bind(this._web3Wrapper), this._onBlockAndLogStreamerError.bind(this), ); const catchAllLogFilter = {}; @@ -104,7 +100,7 @@ export class EventWatcher { await this._emitDifferencesAsync(log, isRemoved ? LogEventState.Removed : LogEventState.Added, callback); } private async _reconcileBlockAsync(): Promise<void> { - const latestBlock = await this._web3Wrapper.getBlockAsync(BlockParamLiteral.Latest); + const latestBlock = await this._web3Wrapper.getBlockAsync(this._stateLayer); // We need to coerce to Block type cause Web3.Block includes types for mempool blocks if (!_.isUndefined(this._blockAndLogStreamerIfExists)) { // If we clear the interval while fetching the block - this._blockAndLogStreamer will be undefined |