Make event parsing more functional and less class-based

1 files changed, 0 insertions, 34 deletions

diff --git a/packages/pipeline/src/data_types/events/event_handlers/base_event_handler.ts b/packages/pipeline/src/data_types/events/event_handlers/base_event_handler.ts
deleted file mode 100644
index 59331fc4f..000000000
--- a/packages/pipeline/src/data_types/events/event_handlers/base_event_handler.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-import { AbiDefinition, BlockParam, BlockParamLiteral, LogEntry } from 'ethereum-types';
-import * as R from 'ramda';
-import { BaseEntity } from 'typeorm';
-
-import { Etherscan } from '../../../data_sources/etherscan';
-import { convertResponseToLogEntry } from '../event_utils';
-
-export abstract class BaseEventHandler<EntityType extends BaseEntity> {
-    protected _abi: AbiDefinition[];
-    protected _address: string;
-    protected _etherscan: Etherscan;
-    constructor(abi: AbiDefinition[], address: string, etherscan: Etherscan) {
-        this._abi = abi;
-        this._address = address;
-        this._etherscan = etherscan;
-    }
-    public abstract convertLogEntryToEventEntity(logEntry: LogEntry): EntityType;
-
-    public async getEventsAsync(
-        fromBlock: BlockParam = BlockParamLiteral.Earliest,
-        toBlock: BlockParam = BlockParamLiteral.Latest,
-    ): Promise<EntityType[]> {
-        const rawEventsResponse = await this._etherscan.getContractEventsAsync(this._address, fromBlock, toBlock);
-        const logEntries = R.map(convertResponseToLogEntry, rawEventsResponse.result);
-        // Note(albrow): Imperative for loop is required here because we can't
-        // bind convertLogEntryToEventEntity without having a specific instance
-        // of a sub-class.
-        const result = [];
-        for (const logEntry of logEntries) {
-            result.push(this.convertLogEntryToEventEntity(logEntry));
-        }
-        return result;
-    }
-}