Add filterLogs flag to fetch logs by contract (#144)

packages/codegen/src/templates/indexer-template.handlebars

@@ -154,6 +154,10 @@ export class Indexer implements IPLDIndexerInterface {
     this._populateRelationsMap();
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
     await this._baseIndexer.fetchIPLDStatus();

packages/eden-watcher/src/indexer.ts

@@ -191,6 +191,10 @@ export class Indexer implements IPLDIndexerInterface {
     this._populateRelationsMap();
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
     await this._baseIndexer.fetchIPLDStatus();

packages/erc20-watcher/src/cli/reset-cmds/state.ts

@@ -43,7 +43,7 @@ export const handler = async (argv: any): Promise<void> => {
 
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue, config.server.mode);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
 
   const syncStatus = await indexer.getSyncStatus();
   assert(syncStatus, 'Missing syncStatus');

packages/erc20-watcher/src/cli/watch-contract.ts

@@ -43,7 +43,7 @@ import { CONTRACT_KIND } from '../utils/index';
   }).argv;
 
   const config: Config = await getConfig(argv.configFile);
-  const { database: dbConfig, server: { mode }, jobQueue: jobQueueConfig } = config;
+  const { database: dbConfig, server, jobQueue: jobQueueConfig } = config;
   const { ethClient, ethProvider } = await initClients(config);
 
   assert(dbConfig);
@@ -59,7 +59,7 @@ import { CONTRACT_KIND } from '../utils/index';
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue, mode);
+  const indexer = new Indexer(server, db, ethClient, ethProvider, jobQueue);
 
   await indexer.watchContract(argv.address, CONTRACT_KIND, argv.checkpoint, argv.startingBlock);
 

packages/erc20-watcher/src/fill.ts

@@ -72,7 +72,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue, config.server.mode);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
 
   const eventWatcher = new EventWatcher(config.upstream, ethClient, indexer, pubsub, jobQueue);
 

packages/erc20-watcher/src/indexer.ts

@@ -12,7 +12,7 @@ import { BaseProvider } from '@ethersproject/providers';
 
 import { EthClient } from '@vulcanize/ipld-eth-client';
 import { StorageLayout } from '@vulcanize/solidity-mapper';
-import { IndexerInterface, Indexer as BaseIndexer, ValueResult, UNKNOWN_EVENT_NAME, JobQueue, Where, QueryOptions } from '@vulcanize/util';
+import { IndexerInterface, Indexer as BaseIndexer, ValueResult, UNKNOWN_EVENT_NAME, JobQueue, Where, QueryOptions, ServerConfig } from '@vulcanize/util';
 
 import { Database } from './database';
 import { Event } from './entity/Event';
@@ -46,20 +46,22 @@ export class Indexer implements IndexerInterface {
   _ethClient: EthClient
   _ethProvider: BaseProvider
   _baseIndexer: BaseIndexer
+  _serverConfig: ServerConfig
 
   _abi: JsonFragment[]
   _storageLayout: StorageLayout
   _contract: ethers.utils.Interface
   _serverMode: string
 
-  constructor (db: Database, ethClient: EthClient, ethProvider: BaseProvider, jobQueue: JobQueue, serverMode: string) {
+  constructor (serverConfig: ServerConfig, db: Database, ethClient: EthClient, ethProvider: BaseProvider, jobQueue: JobQueue) {
     assert(db);
     assert(ethClient);
 
     this._db = db;
     this._ethClient = ethClient;
     this._ethProvider = ethProvider;
-    this._serverMode = serverMode;
+    this._serverConfig = serverConfig;
+    this._serverMode = serverConfig.mode;
     this._baseIndexer = new BaseIndexer(this._db, this._ethClient, this._ethProvider, jobQueue);
 
     const { abi, storageLayout } = artifacts;
@@ -73,6 +75,10 @@ export class Indexer implements IndexerInterface {
     this._contract = new ethers.utils.Interface(this._abi);
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
   }

packages/erc20-watcher/src/job-runner.ts

@@ -82,7 +82,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue, config.server.mode);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
   await indexer.init();
 
   const jobRunner = new JobRunner(jobQueueConfig, indexer, jobQueue);

packages/erc20-watcher/src/server.ts

@@ -38,7 +38,7 @@ export const main = async (): Promise<any> => {
   const config: Config = await getConfig(argv.f);
   const { ethClient, ethProvider } = await initClients(config);
 
-  const { host, port, mode, kind: watcherKind } = config.server;
+  const { host, port, kind: watcherKind } = config.server;
 
   const db = new Database(config.database);
   await db.init();
@@ -55,7 +55,7 @@ export const main = async (): Promise<any> => {
 
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue, mode);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
   await indexer.init();
 
   const eventWatcher = new EventWatcher(config.upstream, ethClient, indexer, pubsub, jobQueue);

packages/erc721-watcher/src/indexer.ts

@@ -137,6 +137,10 @@ export class Indexer implements IPLDIndexerInterface {
     this._relationsMap = new Map();
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
     await this._baseIndexer.fetchIPLDStatus();

packages/graph-node/test/utils/indexer.ts

@@ -5,10 +5,15 @@ import {
   IndexerInterface,
   BlockProgressInterface,
   EventInterface,
-  SyncStatusInterface
+  SyncStatusInterface,
+  ServerConfig as ServerConfigInterface
 } from '@vulcanize/util';
 
 export class Indexer implements IndexerInterface {
+  get serverConfig () {
+    return new ServerConfig();
+  }
+
   async getBlockProgress (blockHash: string): Promise<BlockProgressInterface | undefined> {
     assert(blockHash);
 
@@ -140,3 +145,29 @@ class SyncStatus implements SyncStatusInterface {
     this.latestCanonicalBlockNumber = 0;
   }
 }
+
+class ServerConfig implements ServerConfigInterface {
+  host: string;
+  port: number;
+  mode: string;
+  kind: string;
+  checkpointing: boolean;
+  checkpointInterval: number;
+  ipfsApiAddr: string;
+  subgraphPath: string;
+  wasmRestartBlocksInterval: number;
+  filterLogs: boolean;
+
+  constructor () {
+    this.host = '';
+    this.port = 0;
+    this.mode = '';
+    this.kind = '';
+    this.checkpointing = false;
+    this.checkpointInterval = 0;
+    this.ipfsApiAddr = '';
+    this.subgraphPath = '';
+    this.wasmRestartBlocksInterval = 0;
+    this.filterLogs = false;
+  }
+}

packages/graph-test-watcher/src/indexer.ts

@@ -160,6 +160,10 @@ export class Indexer implements IPLDIndexerInterface {
     this._populateRelationsMap();
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
     await this._baseIndexer.fetchIPLDStatus();

packages/mobymask-watcher/environments/local.toml

@@ -12,6 +12,9 @@
   # IPFS API address (can be taken from the output on running the IPFS daemon).
   # ipfsApiAddr = "/ip4/127.0.0.1/tcp/5001"
 
+  # Boolean to filter logs by contract.
+  filterLogs = true
+
 [database]
   type = "postgres"
   host = "localhost"

packages/mobymask-watcher/src/cli/index-block.ts

@@ -138,8 +138,14 @@ main().catch(err => {
 const processEvent = async (indexer: Indexer, block: BlockProgress, event: Event) => {
   const eventIndex = event.index;
 
+  // Check that events are processed in order.
+  if (eventIndex <= block.lastProcessedEventIndex) {
+    throw new Error(`Events received out of order for block number ${block.blockNumber} hash ${block.blockHash}, got event index ${eventIndex} and lastProcessedEventIndex ${block.lastProcessedEventIndex}, aborting`);
+  }
+
   // Check if previous event in block has been processed exactly before this and abort if not.
-  if (eventIndex > 0) { // Skip the first event in the block.
+  // Skip check if logs fetched are filtered by contract address.
+  if (!indexer.serverConfig.filterLogs) {
     const prevIndex = eventIndex - 1;
 
     if (prevIndex !== block.lastProcessedEventIndex) {

packages/mobymask-watcher/src/indexer.ts

@@ -137,6 +137,10 @@ export class Indexer implements IPLDIndexerInterface {
     this._relationsMap = new Map();
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
     await this._baseIndexer.fetchIPLDStatus();
@@ -799,24 +803,43 @@ export class Indexer implements IPLDIndexerInterface {
 
   async _fetchAndSaveEvents ({ cid: blockCid, blockHash }: DeepPartial<BlockProgress>): Promise<BlockProgress> {
     assert(blockHash);
+    let block: any, logs: any[];
 
-    const logsPromise = this._ethClient.getLogs({ blockHash });
-    const transactionsPromise = this._ethClient.getBlockWithTransactions({ blockHash });
+    if (this._serverConfig.filterLogs) {
+      const watchedContracts = this._baseIndexer.getWatchedContracts();
 
-    let [
-      { block, logs },
-      {
-        allEthHeaderCids: {
-          nodes: [
-            {
-              ethTransactionCidsByHeaderId: {
-                nodes: transactions
-              }
+      // TODO: Query logs by multiple contracts.
+      const contractlogsWithBlockPromises = watchedContracts.map((watchedContract): Promise<any> => this._ethClient.getLogs({
+        blockHash,
+        contract: watchedContract.address
+      }));
+
+      const contractlogsWithBlock = await Promise.all(contractlogsWithBlockPromises);
+
+      // Flatten logs by contract and sort by index.
+      logs = contractlogsWithBlock.map(data => {
+        return data.logs;
+      }).flat()
+        .sort((a, b) => {
+          return a.index - b.index;
+        });
+
+      ({ block } = await this._ethClient.getBlockByHash(blockHash));
+    } else {
+      ({ block, logs } = await this._ethClient.getLogs({ blockHash }));
+    }
+
+    const {
+      allEthHeaderCids: {
+        nodes: [
+          {
+            ethTransactionCidsByHeaderId: {
+              nodes: transactions
             }
-          ]
-        }
+          }
+        ]
       }
-    ] = await Promise.all([logsPromise, transactionsPromise]);
+    } = await this._ethClient.getBlockWithTransactions({ blockHash });
 
     const transactionMap = transactions.reduce((acc: {[key: string]: any}, transaction: {[key: string]: any}) => {
       acc[transaction.txHash] = transaction;

packages/mobymask-watcher/tsconfig.json

@@ -6,7 +6,7 @@
     // "incremental": true,                         /* Enable incremental compilation */
     "target": "es5",                                /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', 'ES2021', or 'ESNEXT'. */
     "module": "commonjs",                           /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
-    // "lib": [],                                   /* Specify library files to be included in the compilation. */
+    "lib": ["es2019"],                              /* Specify library files to be included in the compilation. */
     // "allowJs": true,                             /* Allow javascript files to be compiled. */
     // "checkJs": true,                             /* Report errors in .js files. */
     // "jsx": "preserve",                           /* Specify JSX code generation: 'preserve', 'react-native', 'react', 'react-jsx' or 'react-jsxdev'. */

packages/uni-info-watcher/src/cli/reset-cmds/state.ts

@@ -61,7 +61,7 @@ export const handler = async (argv: any): Promise<void> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, uniClient, erc20Client, ethClient, ethProvider, jobQueue, config.server.mode);
+  const indexer = new Indexer(config.server, db, uniClient, erc20Client, ethClient, ethProvider, jobQueue);
 
   const syncStatus = await indexer.getSyncStatus();
   assert(syncStatus, 'Missing syncStatus');

packages/uni-info-watcher/src/fill.ts

@@ -79,7 +79,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, uniClient, erc20Client, ethClient, ethProvider, jobQueue, config.server.mode);
+  const indexer = new Indexer(config.server, db, uniClient, erc20Client, ethClient, ethProvider, jobQueue);
 
   const eventWatcher = new EventWatcher(config.upstream, ethClient, indexer, pubsub, jobQueue);
 

packages/uni-info-watcher/src/indexer.ts

@@ -11,7 +11,7 @@ import { providers, utils, BigNumber } from 'ethers';
 import { Client as UniClient } from '@vulcanize/uni-watcher';
 import { Client as ERC20Client } from '@vulcanize/erc20-watcher';
 import { EthClient } from '@vulcanize/ipld-eth-client';
-import { IndexerInterface, Indexer as BaseIndexer, QueryOptions, OrderDirection, BlockHeight, Relation, GraphDecimal, JobQueue, Where } from '@vulcanize/util';
+import { IndexerInterface, Indexer as BaseIndexer, QueryOptions, OrderDirection, BlockHeight, Relation, GraphDecimal, JobQueue, Where, ServerConfig } from '@vulcanize/util';
 
 import { findEthPerToken, getEthPriceInUSD, getTrackedAmountUSD, sqrtPriceX96ToTokenPrices, WHITELIST_TOKENS } from './utils/pricing';
 import { updatePoolDayData, updatePoolHourData, updateTickDayData, updateTokenDayData, updateTokenHourData, updateUniswapDayData } from './utils/interval-updates';
@@ -46,8 +46,9 @@ export class Indexer implements IndexerInterface {
   _ethClient: EthClient
   _baseIndexer: BaseIndexer
   _isDemo: boolean
+  _serverConfig: ServerConfig
 
-  constructor (db: Database, uniClient: UniClient, erc20Client: ERC20Client, ethClient: EthClient, ethProvider: providers.BaseProvider, jobQueue: JobQueue, mode: string) {
+  constructor (serverConfig: ServerConfig, db: Database, uniClient: UniClient, erc20Client: ERC20Client, ethClient: EthClient, ethProvider: providers.BaseProvider, jobQueue: JobQueue) {
     assert(db);
     assert(uniClient);
     assert(erc20Client);
@@ -57,8 +58,13 @@ export class Indexer implements IndexerInterface {
     this._uniClient = uniClient;
     this._erc20Client = erc20Client;
     this._ethClient = ethClient;
+    this._serverConfig = serverConfig;
     this._baseIndexer = new BaseIndexer(this._db, this._ethClient, ethProvider, jobQueue);
-    this._isDemo = mode === 'demo';
+    this._isDemo = serverConfig.mode === 'demo';
+  }
+
+  get serverConfig () {
+    return this._serverConfig;
   }
 
   getResultEvent (event: Event): ResultEvent {

packages/uni-info-watcher/src/job-runner.ts

@@ -95,7 +95,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, uniClient, erc20Client, ethClient, ethProvider, jobQueue, config.server.mode);
+  const indexer = new Indexer(config.server, db, uniClient, erc20Client, ethClient, ethProvider, jobQueue);
 
   const jobRunner = new JobRunner(jobQueueConfig, indexer, jobQueue);
   await jobRunner.start();

packages/uni-info-watcher/src/server.ts

@@ -60,7 +60,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, uniClient, erc20Client, ethClient, ethProvider, jobQueue, mode);
+  const indexer = new Indexer(config.server, db, uniClient, erc20Client, ethClient, ethProvider, jobQueue);
 
   const pubSub = new PubSub();
   const eventWatcher = new EventWatcher(config.upstream, ethClient, indexer, pubSub, jobQueue);

packages/uni-watcher/src/chain-pruning.test.ts

@@ -61,7 +61,7 @@ describe('chain pruning', () => {
 
     const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
 
-    indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+    indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
     assert(indexer, 'Could not create indexer object.');
 
     jobRunner = new JobRunner(jobQueueConfig, indexer, jobQueue);

packages/uni-watcher/src/cli/reset-cmds/state.ts

@@ -40,7 +40,7 @@ export const handler = async (argv: any): Promise<void> => {
 
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
 
   const syncStatus = await indexer.getSyncStatus();
   assert(syncStatus, 'Missing syncStatus');

packages/uni-watcher/src/cli/watch-contract.ts

@@ -64,7 +64,7 @@ import { Indexer } from '../indexer';
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
   await indexer.init();
 
   await indexer.watchContract(argv.address, argv.kind, argv.checkpoint, argv.startingBlock);

packages/uni-watcher/src/fill.ts

@@ -72,7 +72,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
   await indexer.init();
 
   const eventWatcher = new EventWatcher(config.upstream, ethClient, indexer, pubsub, jobQueue);

packages/uni-watcher/src/indexer.ts

@@ -3,13 +3,13 @@
 //
 
 import debug from 'debug';
-import { DeepPartial, FindConditions, FindManyOptions, QueryRunner } from 'typeorm';
+import { DeepPartial, FindConditions, FindManyOptions, QueryRunner, Server } from 'typeorm';
 import JSONbig from 'json-bigint';
 import { ethers } from 'ethers';
 import assert from 'assert';
 
 import { EthClient } from '@vulcanize/ipld-eth-client';
-import { IndexerInterface, Indexer as BaseIndexer, ValueResult, JobQueue, Where, QueryOptions } from '@vulcanize/util';
+import { IndexerInterface, Indexer as BaseIndexer, ValueResult, JobQueue, Where, QueryOptions, ServerConfig } from '@vulcanize/util';
 
 import { Database } from './database';
 import { Event, UNKNOWN_EVENT_NAME } from './entity/Event';
@@ -40,15 +40,17 @@ export class Indexer implements IndexerInterface {
   _ethClient: EthClient
   _baseIndexer: BaseIndexer
   _ethProvider: ethers.providers.BaseProvider
+  _serverConfig: ServerConfig
 
   _factoryContract: ethers.utils.Interface
   _poolContract: ethers.utils.Interface
   _nfpmContract: ethers.utils.Interface
 
-  constructor (db: Database, ethClient: EthClient, ethProvider: ethers.providers.BaseProvider, jobQueue: JobQueue) {
+  constructor (serverConfig: ServerConfig, db: Database, ethClient: EthClient, ethProvider: ethers.providers.BaseProvider, jobQueue: JobQueue) {
     this._db = db;
     this._ethClient = ethClient;
     this._ethProvider = ethProvider;
+    this._serverConfig = serverConfig;
     this._baseIndexer = new BaseIndexer(this._db, this._ethClient, this._ethProvider, jobQueue);
 
     this._factoryContract = new ethers.utils.Interface(factoryABI);
@@ -56,6 +58,10 @@ export class Indexer implements IndexerInterface {
     this._nfpmContract = new ethers.utils.Interface(nfpmABI);
   }
 
+  get serverConfig () {
+    return this._serverConfig;
+  }
+
   async init (): Promise<void> {
     await this._baseIndexer.fetchContracts();
   }

packages/uni-watcher/src/job-runner.ts

@@ -84,7 +84,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
   await indexer.init();
 
   const jobRunner = new JobRunner(jobQueueConfig, indexer, jobQueue);

packages/uni-watcher/src/server.ts

@@ -56,7 +56,7 @@ export const main = async (): Promise<any> => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
   await indexer.init();
 
   const eventWatcher = new EventWatcher(config.upstream, ethClient, indexer, pubsub, jobQueue);

packages/uni-watcher/src/smoke.test.ts

@@ -127,7 +127,7 @@ describe('uni-watcher', () => {
     factory = new Contract(factoryContract.address, FACTORY_ABI, signer);
 
     // Verifying with the db.
-    const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+    const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
     await indexer.init();
     assert(await indexer.isWatchedContract(factory.address), 'Factory contract not added to the database.');
   });
@@ -263,7 +263,7 @@ describe('uni-watcher', () => {
     nfpm = new Contract(nfpmContract.address, NFPM_ABI, signer);
 
     // Verifying with the db.
-    const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+    const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
     await indexer.init();
     assert(await indexer.isWatchedContract(nfpm.address), 'NFPM contract not added to the database.');
   });

packages/uni-watcher/test/init.ts

@@ -81,7 +81,7 @@ const main = async () => {
   const jobQueue = new JobQueue({ dbConnectionString, maxCompletionLag: maxCompletionLagInSecs });
   await jobQueue.start();
 
-  const indexer = new Indexer(db, ethClient, ethProvider, jobQueue);
+  const indexer = new Indexer(config.server, db, ethClient, ethProvider, jobQueue);
 
   let factory: Contract;
   // Checking whether factory is deployed.

packages/util/src/config.ts

@@ -34,6 +34,7 @@ export interface ServerConfig {
   ipfsApiAddr: string;
   subgraphPath: string;
   wasmRestartBlocksInterval: number;
+  filterLogs: boolean;
 }
 
 export interface UpstreamConfig {

packages/util/src/indexer.ts

@@ -315,6 +315,10 @@ export class Indexer {
     return watchedContracts;
   }
 
+  getWatchedContracts (): ContractInterface[] {
+    return Object.values(this._watchedContracts);
+  }
+
   async watchContract (address: string, kind: string, checkpoint: boolean, startingBlock: number): Promise<void> {
     assert(this._db.saveContract);
     const dbTx = await this._db.createTransactionRunner();

packages/util/src/job-runner.ts

@@ -279,8 +279,14 @@ export class JobRunner {
         const eventIndex = event.index;
         // log(`Processing event ${event.id} index ${eventIndex}`);
 
+        // Check that events are processed in order.
+        if (eventIndex <= block.lastProcessedEventIndex) {
+          throw new Error(`Events received out of order for block number ${block.blockNumber} hash ${block.blockHash}, got event index ${eventIndex} and lastProcessedEventIndex ${block.lastProcessedEventIndex}, aborting`);
+        }
+
         // Check if previous event in block has been processed exactly before this and abort if not.
-        if (eventIndex > 0) { // Skip the first event in the block.
+        // Skip check if logs fetched are filtered by contract address.
+        if (!this._indexer.serverConfig.filterLogs) {
           const prevIndex = eventIndex - 1;
 
           if (prevIndex !== block.lastProcessedEventIndex) {

packages/util/src/types.ts

@@ -4,6 +4,7 @@
 
 import { Connection, DeepPartial, FindConditions, FindManyOptions, QueryRunner } from 'typeorm';
 
+import { ServerConfig } from './config';
 import { Where, QueryOptions } from './database';
 import { IpldStatus } from './ipld-indexer';
 
@@ -76,6 +77,7 @@ export interface IPLDBlockInterface {
 }
 
 export interface IndexerInterface {
+  readonly serverConfig: ServerConfig
   getBlockProgress (blockHash: string): Promise<BlockProgressInterface | undefined>
   getBlockProgressEntities (where: FindConditions<BlockProgressInterface>, options: FindManyOptions<BlockProgressInterface>): Promise<BlockProgressInterface[]>
   getEvent (id: string): Promise<EventInterface | undefined>