Merge branch 'babylon' into cli-babylon-remaining

package.json

@@ -22,8 +22,7 @@
     "content-directory-schemas",
     "query-node",
     "query-node/generated/graphql-server",
-    "query-node/generated/indexer",
-    "query-node/index-builder"
+    "query-node/generated/indexer"
   ],
   "resolutions": {
     "@polkadot/api": "1.26.1",

query-node/docker-compose.yml

@@ -42,7 +42,7 @@ services:
       - DB_HOST=db
       - TYPEORM_HOST=db
       - DEBUG=index-builder:*
-      - WS_PROVIDER_ENDPOINT_URI=ws://joystream-node:9944/
+      - WS_PROVIDER_ENDPOINT_URI=${WS_PROVIDER_ENDPOINT_URI}
     depends_on:
       - indexer-api-gateway
     command: ["workspace", "query-node-root", "processor:start"]
@@ -61,7 +61,7 @@ services:
       - PROCESSOR_POLL_INTERVAL=1000 # refresh every second 
       - REDIS_URI=redis://redis:6379/0
       - DEBUG=index-builder:*
-      - WS_PROVIDER_ENDPOINT_URI=ws://joystream-node:9944/
+      - WS_PROVIDER_ENDPOINT_URI=${WS_PROVIDER_ENDPOINT_URI}
     depends_on: 
       - db
     command: ["workspace", "query-node-root", "indexer:start"] 

query-node/generated/graphql-server/package.json

@@ -61,7 +61,7 @@
     "dotenv": "^8.2.0",
     "lodash": "^4.17.20",
     "reflect-metadata": "^0.1.13",
-    "warthog": "https://github.com/metmirr/warthog/releases/download/v2.19/warthog-v2.19.tgz"
+    "warthog": "https://github.com/metmirr/warthog/releases/download/v2.20.0/warthog-v2.20.0.tgz"
   },
   "devDependencies": {
     "@types/jest": "^24.0.23",

query-node/generated/indexer/index.ts

@@ -9,7 +9,7 @@ import {
   QueryNodeManager,
   DatabaseManager,
   SubstrateEvent,
-} from "@joystream/hydra-indexer-lib/lib";
+} from "@dzlzv/hydra-indexer-lib/lib";
 
 // Mappings use!
 export { DatabaseManager as DB, getLogger, SubstrateEvent };

query-node/generated/indexer/package.json

@@ -9,7 +9,7 @@
     "db:migrate": "DEBUG=${DEBUG} TYPEORM_LOGGING=true ts-node index.ts migrate"
   },
   "dependencies": {
-    "@joystream/hydra-indexer-lib": "^0.0.17-alpha",
+    "@dzlzv/hydra-indexer-lib": "0.0.18-legacy.1.26.1",
     "@types/bn.js": "^4.11.6",
     "@types/shortid": "^0.0.29",
     "bn.js": "^5.1.1",

query-node/index-builder/.dockerignore

@@ -1,3 +0,0 @@
-**/node_modules
-./lib
-./nyc_output

query-node/index-builder/.eslintignore

@@ -1,3 +0,0 @@
-/lib
-ormconfig.ts
-ormconfig.dev.ts

query-node/index-builder/.eslintrc.js

@@ -1,15 +0,0 @@
-module.exports = {
-    extends: [
-		"eslint:recommended",
-		"plugin:@typescript-eslint/eslint-recommended",
-		"plugin:@typescript-eslint/recommended",
-		"plugin:@typescript-eslint/recommended-requiring-type-checking"
-	],
-	parser: "@typescript-eslint/parser",
-	parserOptions: {
-				project: './eslint.tsconfig.json',
-        tsconfigRootDir: __dirname,
-        //debugLevel: true
-	},
-	plugins: ["@typescript-eslint"]
-}

query-node/index-builder/.gitignore

@@ -1,2 +0,0 @@
-/lib
-ormconfig.dev.ts

query-node/index-builder/.prettierrc.js

@@ -1,3 +0,0 @@
-module.exports = {
-  ...require('@joystream/prettier-config'),
-}

query-node/index-builder/CHANGELOG.md

@@ -1,40 +0,0 @@
-# Changelog of major updates
-
-## 0.0.17-alpha
-
-- Bugfixes and stability improvements
-
-## 0.0.16-alpha
-
-- Indexer supports custom substrate types
-- Substrate API stability improvements 
-
-## 0.0.15-alpha.2
-
-- Reworked indexer head updates by IndexerStatusService to make it more stable against Redis outages. 
-By default the indexer head expires after 15 mins which forces the update from the database
-
-## 0.0.15-alpha.1
-
-### Hydra Indexer
-
-- Hydra Indexer publishes the current head to Redis and caches metrics for quick access
-- Schema update: `created_at`, `deleted_at`, `updated_at`, `version` added to the Indexer entity tables
-- Added additional indices
-
-### Hydra Processor
-
-- Hydra Processor fetches repeatedly updates the indexer head from the Indexer GraphQL endpoint
-- More efficient event fetching
-
-## 0.0.14-alpha.1
-
-- The mappings processor sources events from a GraphQL endpoint
-
-## 0.0.14-alpha
-
-Breaking changes:
-
-- Fixed JSON serialization to postgres for Extrinsincs and Event params
-- Event name is stored as `${section}.${method}`
-- Increased the number of padding zeroes in the event id (six padding zeroes for the index part)

query-node/index-builder/README.md

@@ -1,2 +0,0 @@
-# Hydra Indexer 
-

query-node/index-builder/docker-compose-test.yml

@@ -1,22 +0,0 @@
-version: "3"
-
-services:
-  substrate:
-    image: paritytech/substrate-playground-template-node-template:sha-7212614
-    ports:
-      - "9944:9944"
-    command: ["./target/release/node-template", "--dev", "--tmp", "--ws-external"]
-  
-  redis:
-    image: redis:6.0-alpine
-    ports:
-      - "6379:6379"
-
-  db:
-    image: postgres:12
-    restart: always
-    ports:
-      - "5432:5432"
-    environment:
-      POSTGRES_PASSWORD: postgres
-      POSTGRES_DB: test

query-node/index-builder/eslint.tsconfig.json

@@ -1,7 +0,0 @@
-{
-  "extends": "./tsconfig.json",
-  "include": [
-    "./src/**/*.ts",
-    "./test/**/*.ts"
-  ]
-}

query-node/index-builder/package.json

@@ -1,74 +0,0 @@
-{
-  "name": "@joystream/hydra-indexer-lib",
-  "description": "Block index builder for substrate based chains",
-  "version": "0.0.17-alpha",
-  "main": "index.js",
-  "license": "MIT",
-  "repository": "git@github.com:Joystream/joystream.git",
-  "homepage": "https://github.com/joystream/joystream/query-node/substrate-query-framework/index-builder",
-  "files": [
-    "lib",
-    "README.md"
-  ],
-  "scripts": {
-    "pub": "yarn build && yarn publish --access public",
-    "build": "rm -rf lib && tsc --build tsconfig.json",
-    "lint": "eslint . --cache --ext .ts --config .eslintrc.js",
-    "typeorm": "node --require ts-node/register ./node_modules/typeorm/cli.js",
-    "i-test": "docker-compose -f docker-compose-test.yml up -d && sh ./run-integration-tests.sh",
-    "post-i-test": "docker-compose -f docker-compose-test.yml down",
-    "i-test-local": "nyc --extension .ts mocha --exit --timeout 50000 --require ts-node/register --file ./test/integration/setup-db.ts \"test/integration/**/*.test.ts\"",
-    "test": "nyc --extension .ts mocha --timeout 50000 --require ts-node/register --forbid-only \"test/**/*.test.ts\""
-  },
-  "dependencies": {
-    "@polkadot/api": "^1.26.1",
-    "@types/ioredis": "^4.17.4",
-    "@types/lodash": "^4.14.161",
-    "@types/shortid": "^0.0.29",
-    "debug": "^4.1.1",
-    "graphql": "15",
-    "graphql-request": "^3.1.0",
-    "ioredis": "^4.17.3",
-    "lodash": "^4.17.20",
-    "reflect-metadata": "^0.1.13",
-    "shortid": "^2.2.15",
-    "typedi": "^0.8.0",
-    "typeorm": "^0.2.25"
-  },
-  "devDependencies": {
-    "@joystream/prettier-config": "^1.0.0",
-    "@polkadot/ts": "^0.3.14",
-    "@types/bn.js": "^4.11.6",
-    "@types/chai": "^4.2.12",
-    "@types/debug": "^4.1.5",
-    "@types/mocha": "^8.0.3",
-    "@types/node": "^10",
-    "@types/pg": "^7.14.4",
-    "@typescript-eslint/eslint-plugin": "^3.8.0",
-    "@typescript-eslint/parser": "^3.0.2",
-    "bn.js": "^5.1.2",
-    "chai": "^4.2.0",
-    "docker-compose-mocha": "^1.2.0",
-    "dotenv": "^8.2.0",
-    "eslint": "^7.1.0",
-    "husky": "^4.2.5",
-    "lint-staged": "^10.2.6",
-    "mocha": "^8.1.3",
-    "nyc": "^15.1.0",
-    "pg": "^8.3.2",
-    "pgtools": "^0.3.0",
-    "prettier": "^2.1.2",
-    "ts-mockito": "^2.6.1",
-    "ts-node": "^9.0.0",
-    "typescript": "^3.8",
-    "util": "^0.12.3"
-  },
-  "husky": {
-    "hooks": {
-      "pre-push": "yarn lint"
-    }
-  },
-  "lint-staged": {
-    "*.ts": "yarn lint"
-  }
-}

query-node/index-builder/run-integration-tests.sh

@@ -1,17 +0,0 @@
-function cleanup()
-{
-    docker-compose -f docker-compose-test.yml down
-}
-
-
-docker run --network="index-builder_default"  \
-           --env TYPEORM_HOST=db  \
-           --env DB_HOST=db  \
-           --env PGHOST=db  \
-           --env REDIS_URI=redis://redis:6379/0  \
-           --env WS_PROVIDER_URI=ws://substrate:9944 \
-           -v $PWD:/index-builder \
-           node:12-alpine \
-           sh -c "cd /index-builder && yarn && yarn build && yarn i-test-local"
-
-trap cleanup EXIT

query-node/index-builder/src/bootstrap/BootstrapPack.ts

@@ -1,10 +0,0 @@
-import { ApiPromise } from '@polkadot/api';
-import { DatabaseManager } from '..';
-
-export type BootstrapResult = void | Promise<void>;
-
-export type BootstrapFunc = (api: ApiPromise, db: DatabaseManager) => BootstrapResult;
-
-export default interface BootstrapPack {
-  pack: BootstrapFunc[];
-}

query-node/index-builder/src/bootstrap/Bootstrapper.ts

@@ -1,104 +0,0 @@
-import {
-  BootstrapPack,
-  BootstrapFunc,
-  SubstrateEvent,
-} from '..';
-
-import { WsProvider, ApiPromise } from '@polkadot/api';
-import { getConnection, EntityManager } from 'typeorm';
-import { makeDatabaseManager } from '..';
-
-import Debug from 'debug';
-import { BootstrapOptions } from '../node/QueryNodeStartOptions';
-const debug = Debug('index-builder:bootstrapper');
-
-export default class Bootstrapper {
-  private _api: ApiPromise;
-  private _bootstrapPack: BootstrapPack;
-
-  private constructor(api: ApiPromise, bootstrapPack: BootstrapPack) {
-    this._api = api;
-    this._bootstrapPack = bootstrapPack;
-  }
-
-  static async create(options: BootstrapOptions): Promise<Bootstrapper> {
-    const { wsProviderURI, typeRegistrator, processingPack } = options;
-
-    // Initialise the provider to connect to the local node
-    const provider = new WsProvider(wsProviderURI);
-
-    // Register types before creating the api
-    typeRegistrator ? typeRegistrator() : null;
-
-    // Create the API and wait until ready
-    const api = await ApiPromise.create({ provider });
-    return new Bootstrapper(api, processingPack);
-  }
-
-  async bootstrap():Promise<void> {
-    debug('Bootstraping the database');
-    const queryRunner = getConnection().createQueryRunner();
-    const api = this._api;
-    await queryRunner.connect();
-
-    try {
-      await queryRunner.startTransaction();
-      // establish real database connection
-      // perform all the bootstrap logic in one large
-      // atomic transaction
-      for (const boot of this._bootstrapPack.pack) {
-        const shouldBootstrap = await this.shouldBootstrap(queryRunner.manager, boot);
-        if (!shouldBootstrap) {
-          debug(`${boot.name} already bootstrapped, skipping`);
-          continue;
-        }
-
-        //const bootEvent = this.createBootEvent(boot);
-        await boot(api, makeDatabaseManager(queryRunner.manager));
-
-        // Save the bootstrap events so
-        //await SavedEntityEvent.update(bootEvent, queryRunner.manager);
-      }
-
-      debug('Database bootstrap successfull');
-      await queryRunner.commitTransaction();
-    } catch (error) {
-      console.error(error);
-      await queryRunner.rollbackTransaction();
-      throw new Error(`Bootstrapping failed: ${JSON.stringify(error, null, 2)}`);
-    } finally {
-      await queryRunner.release();
-    }
-  }
-
-  /**
-   * DEPRECATED, DO NOT USE
-   */
-  private createBootEvent(boot: BootstrapFunc): SubstrateEvent {
-    return {
-      name: 'Bootstrap',
-      method: `Bootstrap.${boot.name}`,
-      params: [],
-      id: 'bootstrap',
-      index: (Date.now() / 1000) | 0, // simply put the timestamp here
-      blockNumber: process.env.BLOCK_HEIGHT ? Number.parseInt(process.env.BLOCK_HEIGHT) : 0,
-    };
-  }
-
-  /**
-   * Looksup the saved boot events to find out if the given handler has already
-   * bootstrapped the data
-   *
-   * @param em  `EntityManager` by `typeorm`
-   * @param boot boothandler
-   */
-  private shouldBootstrap(em: EntityManager, boot: BootstrapFunc): Promise<boolean> {
-    // const event = await em.findOne(SavedEntityEvent, {
-    //   where: {
-    //     eventName: `Bootstrap.${boot.name}`,
-    //   },
-    // });
-    // return event ? false : true;
-    throw new Error('Bootstrap is deprecated');
-  }
-}

query-node/index-builder/src/bootstrap/index.ts

@@ -1,4 +0,0 @@
-import Bootstrapper from './Bootstrapper';
-import BootstrapPack from './BootstrapPack'
-
-export { Bootstrapper, BootstrapPack }

query-node/index-builder/src/db/DatabaseManager.ts

@@ -1,57 +0,0 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
-import { FindOneOptions, DeepPartial, EntityManager } from 'typeorm';
-
-import * as helper from './helper';
-
-/**
- * Database access interface. Use typeorm transactional entity manager to perform get/save/remove operations.
- */
-export interface DatabaseManager {
-  /**
-   * Save given entity instance, if entity is exists then just update
-   * @param entity
-   */
-  save<T>(entity: DeepPartial<T>): Promise<void>;
-
-  /**
-   * Removes a given entity from the database.
-   * @param entity: DeepPartial<T>
-   */
-  remove<T>(entity: DeepPartial<T>): Promise<void>;
-
-  /**
-   * Finds first entity that matches given options.
-   * @param entity: T
-   * @param options: FindOneOptions<T>
-   */
-  get<T>(entity: { new (...args: any[]): T }, options: FindOneOptions<T>): Promise<T | undefined>;
-
-  /**
-   * Finds entities that match given options.
-   * @param entity: T
-   * @param options: FindOneOptions<T>
-   */
-  getMany<T>(entity: { new (...args: any[]): T }, options: FindOneOptions<T>): Promise<T[]>;
-}
-
-/**
- * Create database manager.
- * @param entityManager EntityManager
- */
-export function makeDatabaseManager(entityManager: EntityManager): DatabaseManager {
-  return {
-    save: async <T>(entity: DeepPartial<T>): Promise<void> => {
-      entity = helper.fillRequiredWarthogFields(entity);
-      await entityManager.save(entity);
-    },
-    remove: async <T>(entity: DeepPartial<T>): Promise<void> => {
-      await entityManager.remove(entity);
-    },
-    get: async <T>(entity: { new (...args: any[]): T }, options: FindOneOptions<T>): Promise<T | undefined> => {
-      return await entityManager.findOne(entity, options);
-    },
-    getMany: async <T>(entity: { new (...args: any[]): T }, options: FindOneOptions<T>): Promise<T[]> => {
-      return await entityManager.find(entity, options);
-    },
-  } as DatabaseManager;
-}

query-node/index-builder/src/db/SnakeNamingStrategy.ts

@@ -1,42 +0,0 @@
-/**
- * This file is from warthog, in order to not have naming conflict with warthog
- * it is used by typeorm as naming strategy
- * warthog/src/torm/SnakeNamingStrategy.ts
- */
-
-import { DefaultNamingStrategy, NamingStrategyInterface } from 'typeorm';
-import { snakeCase } from 'typeorm/util/StringUtils';
-
-export class SnakeNamingStrategy extends DefaultNamingStrategy implements NamingStrategyInterface {
-  constructor() {
-    super();
-  }
-
-  tableName(className: string, customName?: string): string {
-    return customName ? customName : `${snakeCase(className)}`; // `${snakeCase(className)}s`;
-  }
-
-  columnName(propertyName: string, customName?: string, embeddedPrefixes: string[] = []): string {
-    return snakeCase(embeddedPrefixes.join('_')) + (customName ? customName : snakeCase(propertyName));
-  }
-
-  relationName(propertyName: string): string {
-    return snakeCase(propertyName);
-  }
-
-  joinColumnName(relationName: string, referencedColumnName: string): string {
-    return snakeCase(`${relationName}_${referencedColumnName}`);
-  }
-
-  joinTableName(firstTableName: string, secondTableName: string): string {
-    return snakeCase(`${firstTableName}_${secondTableName}`);
-  }
-
-  joinTableColumnName(tableName: string, propertyName: string, columnName?: string): string {
-    return snakeCase(`${tableName}_${columnName ? columnName : propertyName}`);
-  }
-
-  classTableInheritanceParentColumnName(parentTableName: string, parentTableIdPropertyName: string): string {
-    return snakeCase(`${parentTableName}_${parentTableIdPropertyName}`);
-  }
-}

query-node/index-builder/src/db/dal.ts

@@ -1,47 +0,0 @@
-import { QueryRunner, getRepository } from 'typeorm';
-import { EVENT_TABLE_NAME } from '../entities/SubstrateEventEntity';
-import { doInTransaction } from './helper';
-import { ProcessedEventsLogEntity } from '../entities/ProcessedEventsLogEntity';
-
-export async function getIndexerHead(): Promise<number> {
-  return await doInTransaction(async (qr: QueryRunner) => {
-    const raw = await qr.query(`
-      SELECT block_number 
-      FROM ${EVENT_TABLE_NAME} e1 
-      WHERE 
-        NOT EXISTS (
-          SELECT 
-            NULL FROM ${EVENT_TABLE_NAME} e2 
-          WHERE e2.block_number = e1.block_number + 1) 
-        ORDER BY block_number
-      LIMIT 1`
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    ) as Array<any>;
-
-    if ((raw === undefined) || (raw.length === 0)) {
-      return -1;
-    }     
-
-    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
-    return Number(raw[0].block_number);
-  }) 
-  
-}
-
-/**
- * Get last event processed by the given mappings processor
- * 
- * @param processorID Name of the processor
- */
-export async function loadState(processorID: string): Promise<ProcessedEventsLogEntity | undefined> {
-  return await getRepository(ProcessedEventsLogEntity).findOne({
-    where: {
-      processor: processorID
-    },
-    order: {
-      eventId: 'DESC',
-      lastScannedBlock: 'DESC'
-    }
-  });
-}
-

query-node/index-builder/src/db/helper.ts

@@ -1,67 +0,0 @@
-import * as shortid from 'shortid';
-import { DeepPartial, createConnection, QueryRunner, Connection, getConnection } from 'typeorm';
-
-import config from './ormconfig';
-
-import Debug from 'debug';
-import { logError } from '../utils/errors';
-
-const debug = Debug('index-builder:helper');
-
-/**
- * Fixes compatibility between typeorm and warthog models.
- *
- * @tutorial Warthog add extra properties to its BaseModel and some of these properties are
- * required. This function mutate the entity to make it compatible with warthog models.
- * Warthog throw error if required properties contains null values.
- *
- * @param entity: DeepPartial<T>
- */
-export function fillRequiredWarthogFields<T>(entity: DeepPartial<T>): DeepPartial<T> {
-  //eslint-disable-next-line no-prototype-builtins
-  if (!entity.hasOwnProperty('id')) {
-    Object.assign(entity, { id: shortid.generate() });
-  }
-  //eslint-disable-next-line no-prototype-builtins
-  if (!entity.hasOwnProperty('createdById')) {
-    Object.assign(entity, { createdById: shortid.generate() });
-  }
-  //eslint-disable-next-line no-prototype-builtins
-  if (!entity.hasOwnProperty('version')) {
-    Object.assign(entity, { version: 1 });
-  }
-  return entity;
-}
-
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export async function createDBConnection(entities: any[] = []): Promise<Connection> {
-  //const connectionOptions = await getConnectionOptions();
-  const _config = config();
-  entities.map((e) => _config.entities?.push(e));
-  debug(`DB config: ${JSON.stringify(_config, null, 2)}`);
-  return createConnection(_config);
-}
-
-export async function doInTransaction<T>(fn: (qn: QueryRunner) => Promise<T>): Promise<T> {
-  const queryRunner = getConnection().createQueryRunner();
-  try {
-    // establish real database connection
-    await queryRunner.connect();
-    await queryRunner.startTransaction();
-
-    const result = await fn(queryRunner);
-
-    await queryRunner.commitTransaction();
-
-    return result;
-  } catch (error) {
-    console.error(`Rolling back the transaction due to errors: ${logError(error)}`);
-
-    // Since we have errors lets rollback changes we made
-    await queryRunner.rollbackTransaction();
-    throw new Error(error);
-  } finally {
-    // Query runner needs to be released manually.
-    await queryRunner.release();
-  }
-}

query-node/index-builder/src/db/index.ts

@@ -1,5 +0,0 @@
-export * from './DatabaseManager';
-//export * from './helper';
-export * from './transformers';
-export * from './dal';
-export { SnakeNamingStrategy } from './SnakeNamingStrategy';

query-node/index-builder/src/db/ormconfig.ts

@@ -1,24 +0,0 @@
-import { ConnectionOptions } from 'typeorm';
-import  { SnakeNamingStrategy } from './SnakeNamingStrategy';
-import { SubstrateEventEntity, SubstrateExtrinsicEntity, ProcessedEventsLogEntity } from '../entities';
-import { IndexerSchema } from '../migrations/IndexerSchema';
-
-const config: () => ConnectionOptions = () => {
-  return {
-    type: 'postgres',
-    host: process.env.TYPEORM_HOST,
-    port: parseInt(process.env.TYPEORM_PORT || '5432', 10),
-    username: process.env.TYPEORM_USERNAME,
-    password: process.env.TYPEORM_PASSWORD,
-    database: process.env.TYPEORM_DATABASE,
-    entities: [ SubstrateEventEntity, SubstrateExtrinsicEntity, ProcessedEventsLogEntity, process.env.TYPEORM_ENTITIES ],
-    migrations: [ IndexerSchema ],
-    cli: {
-        migrationsDir: "migrations"
-    },
-    logging: (process.env.TYPEORM_LOGGING === 'true'),
-    namingStrategy: new SnakeNamingStrategy()
-  } as ConnectionOptions;
-}
-
-export default config;

query-node/index-builder/src/db/transformers.ts

@@ -1,17 +0,0 @@
-import * as BN from 'bn.js';
-import { ValueTransformer } from 'typeorm';
-
-export class NumericTransformer implements ValueTransformer {
-  /**
-   * Used to marshal data when writing to the database.
-   */
-  to(value: BN): string {
-    return value ? value.toString() : value;
-  }
-  /**
-   * Used to unmarshal data when reading from the database.
-   */
-  from(value: string): BN {
-    return new BN(value);
-  }
-}

query-node/index-builder/src/entities/AbstractWarthogModel.ts

@@ -1,32 +0,0 @@
-import { Column, CreateDateColumn, UpdateDateColumn, VersionColumn } from 'typeorm';
-
-/**
- * Abstract class with Warthog fields. All Entities exposed as warthog model class
- * should extend it.
- */
-export abstract class AbstractWarthogModel {
-      // Warthog Fields
-  @CreateDateColumn() 
-  createdAt!: Date;
-  @Column({
-    default: 'hydra-indexer'
-  }) 
-  createdById!: string;
-  
-  @UpdateDateColumn({ nullable: true })
-  updatedAt?: Date;
-  
-  @Column({ 
-    nullable: true 
-  })
-  updatedById?: string;
-  
-  @Column({ nullable: true })
-  deletedAt?: Date;
-  
-  @Column({ nullable: true })
-  deletedById?: string;
-  
-  @VersionColumn() 
-  version!: number;
-}

query-node/index-builder/src/entities/ProcessedEventsLogEntity.ts

@@ -1,28 +0,0 @@
-import { Entity, PrimaryGeneratedColumn, Column, Index } from 'typeorm';
-
-@Entity({
-  name: 'processed_events_log'
-})
-export class ProcessedEventsLogEntity {
-  @PrimaryGeneratedColumn()
-  id!: number;
-
-  // Processor name, e.g. 'hydra-tutorial' 
-  @Column()
-  processor!: string;
-
-  // the indexed event reference
-  @Column()
-  @Index()
-  eventId!: string;
-
-  // last block the processor has scanned
-  @Column()
-  lastScannedBlock!: number;
-
-  // When the event is added to the database
-  @Column('timestamp without time zone', {
-    default: () => 'now()',
-  })
-  updatedAt!: Date;
-}

query-node/index-builder/src/entities/SubstrateEventEntity.ts

@@ -1,126 +0,0 @@
-import {
-  Entity,
-  Column,
-  JoinColumn,
-  OneToOne,
-  PrimaryColumn,
-  Index,
-} from 'typeorm'
-import { AnyJson, AnyJsonField } from '../interfaces/json-types'
-import { formatEventId, IQueryEvent } from '..'
-import * as BN from 'bn.js'
-import { SubstrateExtrinsicEntity } from './SubstrateExtrinsicEntity'
-import { EventParam } from '../model/substrate-interfaces'
-import { AbstractWarthogModel } from './AbstractWarthogModel'
-
-export const EVENT_TABLE_NAME = 'substrate_event'
-
-@Entity({
-  name: EVENT_TABLE_NAME,
-})
-@Index(['blockNumber', 'index'], { unique: true })
-export class SubstrateEventEntity extends AbstractWarthogModel {
-  @PrimaryColumn()
-  id!: string
-
-  @Column()
-  @Index()
-  name!: string
-
-  @Column({
-    nullable: true,
-  })
-  section?: string
-
-  @Column()
-  method!: string
-
-  @Column({
-    type: 'jsonb',
-  })
-  phase!: AnyJson
-
-  @Column()
-  @Index()
-  blockNumber!: number
-
-  @Column()
-  index!: number
-
-  @Column({
-    type: 'jsonb',
-  })
-  params!: EventParam[]
-
-  @OneToOne(
-    () => SubstrateExtrinsicEntity,
-    (e: SubstrateExtrinsicEntity) => e.event,
-    {
-      cascade: true,
-      nullable: true,
-    }
-  )
-  @JoinColumn()
-  extrinsic?: SubstrateExtrinsicEntity
-
-  static fromQueryEvent(q: IQueryEvent): SubstrateEventEntity {
-    const _entity = new SubstrateEventEntity()
-
-    _entity.blockNumber = q.blockNumber
-    _entity.index = q.indexInBlock
-    _entity.id = formatEventId(_entity.blockNumber, _entity.index)
-    _entity.method = q.eventRecord.event.method || 'NO_METHOD'
-    _entity.section = q.eventRecord.event.section || 'NO_SECTION'
-    _entity.name = `${_entity.section}.${_entity.method}`
-    _entity.phase = (q.eventRecord.phase.toJSON() || {}) as AnyJson
-
-    _entity.params = []
-
-    const { event } = q.eventRecord
-
-    if (event.data.length) {
-      q.eventRecord.event.data.forEach((data, index) => {
-        _entity.params.push({
-          type: event.typeDef[index].type,
-          name:
-            event.typeDef[index].name ||
-            event.typeDef[index].displayName ||
-            'NO_NAME',
-          value: data ? data.toJSON() : {},
-        } as EventParam)
-      })
-    }
-
-    if (q.extrinsic) {
-      const e = q.extrinsic
-      const extr = new SubstrateExtrinsicEntity()
-      _entity.extrinsic = extr
-
-      extr.blockNumber = q.blockNumber
-      extr.signature = e.signature.toString()
-      extr.signer = e.signer.toString()
-      extr.method = e.method.methodName || 'NO_METHOD'
-      extr.section = e.method.sectionName || 'NO_SECTION'
-      extr.meta = (e.meta.toJSON() || {}) as AnyJson
-      extr.hash = e.hash.toString()
-      extr.isSigned = e.isSigned
-      ;(extr.tip = new BN(e.tip.toString())),
-        (extr.versionInfo = e.version.toString())
-      extr.nonce = e.nonce.toNumber()
-      extr.era = (e.era.toJSON() || {}) as AnyJson
-
-      extr.args = []
-
-      e.method.args.forEach((data, index) => {
-        extr.args.push({
-          type: data.toRawType(),
-          value: (data.toJSON() || '') as AnyJsonField,
-          name: e.meta.args[index].name.toString(),
-        })
-      })
-    }
-    //debug(`Event entity: ${JSON.stringify(_entity, null, 2)}`);
-
-    return _entity
-  }
-}

query-node/index-builder/src/entities/SubstrateExtrinsicEntity.ts

@@ -1,82 +0,0 @@
-import {
-  Entity,
-  PrimaryGeneratedColumn,
-  Column,
-  OneToOne,
-  Index,
-} from 'typeorm'
-import { AnyJson } from '../interfaces/json-types'
-import * as BN from 'bn.js'
-import { NumericTransformer } from '../db'
-import { ExtrinsicArg, SubstrateExtrinsic } from '../interfaces'
-import { SubstrateEventEntity } from './SubstrateEventEntity'
-import { AbstractWarthogModel } from './AbstractWarthogModel'
-
-export const EXTRINSIC_TABLE_NAME = 'substrate_extrinsic'
-
-@Entity({
-  name: EXTRINSIC_TABLE_NAME,
-})
-export class SubstrateExtrinsicEntity
-  extends AbstractWarthogModel
-  implements SubstrateExtrinsic {
-  @PrimaryGeneratedColumn()
-  id!: number
-
-  @Column({
-    type: 'numeric',
-    transformer: new NumericTransformer(),
-  })
-  tip!: BN
-
-  @Column({
-    type: 'numeric',
-  })
-  @Index()
-  blockNumber!: number
-
-  @Column()
-  versionInfo!: string
-
-  @Column({
-    type: 'jsonb',
-  })
-  meta!: AnyJson
-
-  @Column()
-  method!: string
-
-  @Column()
-  section!: string
-
-  @Column({
-    type: 'jsonb',
-  })
-  args!: ExtrinsicArg[]
-
-  @Column()
-  signer!: string
-
-  @Column()
-  signature!: string
-
-  @Column()
-  nonce!: number
-
-  @Column({
-    type: 'jsonb',
-  })
-  era!: AnyJson
-
-  @Column()
-  hash!: string
-
-  @Column()
-  isSigned!: boolean
-
-  @OneToOne(
-    () => SubstrateEventEntity,
-    (event: SubstrateEventEntity) => event.extrinsic
-  ) // specify inverse side as a second parameter
-  event!: SubstrateEventEntity
-}

query-node/index-builder/src/entities/index.ts

@@ -1,4 +0,0 @@
-export { SubstrateEventEntity } from './SubstrateEventEntity';
-export { SubstrateExtrinsicEntity } from './SubstrateExtrinsicEntity';
-export { ProcessedEventsLogEntity } from './ProcessedEventsLogEntity';
-

query-node/index-builder/src/index.ts

@@ -1,20 +0,0 @@
-import 'reflect-metadata';
-import { BlockProducer, IndexBuilder } from './indexer';
-import BootstrapPack, { BootstrapFunc } from './bootstrap/BootstrapPack';
-
-export * from './entities';
-export * from './interfaces';
-export * from './model';
-export * from './node';
-export * from './substrate';
-export * from './db';
-export * from './processor';
-export * from './redis';
-
-
-export {
-  BlockProducer,
-  IndexBuilder,
-  BootstrapPack,
-  BootstrapFunc,
-};

query-node/index-builder/src/indexer/BlockProducer.ts

@@ -1,183 +0,0 @@
-import { ISubstrateService } from '../substrate'
-import { IQueryEvent, QueryEventBlock, QueryEvent } from '../model'
-import { Header, Extrinsic } from '@polkadot/types/interfaces'
-import * as assert from 'assert'
-
-import Debug from 'debug'
-import { UnsubscribePromise } from '@polkadot/api/types'
-import { waitFor, retry, withTimeout } from '../utils/wait-for'
-import { ConstantBackOffStrategy } from '../utils/BackOffStategy'
-import { IBlockProducer } from './IBlockProducer'
-import { Service, Inject } from 'typedi'
-import {
-  BLOCK_PRODUCER_FETCH_RETRIES,
-  NEW_BLOCK_TIMEOUT_MS,
-} from './indexer-consts'
-
-const DEBUG_TOPIC = 'index-builder:producer'
-
-const debug = Debug(DEBUG_TOPIC)
-
-@Service('BlockProducer')
-export class BlockProducer implements IBlockProducer<QueryEventBlock> {
-  private _started: boolean
-
-  private _newHeadsUnsubscriber: UnsubscribePromise | undefined
-
-  private _blockToProduceNext: number
-
-  private _chainHeight: number
-
-  @Inject('SubstrateService')
-  private readonly substrateService!: ISubstrateService
-
-  constructor() {
-    this._started = false
-    this._newHeadsUnsubscriber = undefined
-
-    this._blockToProduceNext = 0
-    this._chainHeight = 0
-  }
-
-  async start(atBlock?: number): Promise<void> {
-    assert(this.substrateService, 'SubstrateService must be set')
-    if (this._started) throw Error(`Cannot start when already started.`)
-
-    // mark as started
-    this._started = true
-
-    // Try to get initial header right away
-    const finalizedHeadHash = await this.substrateService.getFinalizedHead()
-    const header = await this.substrateService.getHeader(finalizedHeadHash)
-    this._chainHeight = header.number.toNumber()
-
-    if (atBlock) {
-      this._blockToProduceNext = atBlock
-
-      if (atBlock > this._chainHeight)
-        throw Error(`Provided block is ahead of chain.`)
-    }
-
-    //
-    this._newHeadsUnsubscriber = this.substrateService.subscribeNewHeads(
-      (header) => {
-        this._OnNewHeads(header)
-      }
-    )
-
-    debug(
-      `Starting the block producer, next block: ${this._blockToProduceNext.toString()}`
-    )
-  }
-
-  async stop(): Promise<void> {
-    if (!this._started) {
-      debug('Block producer is not started')
-      return
-    }
-
-    // THIS IS VERY CRUDE, NEED TO MANAGE LOTS OF STUFF HERE!
-    if (this._newHeadsUnsubscriber) {
-      (await this._newHeadsUnsubscriber)()
-    }
-    debug('Block producer has been stopped')
-    this._started = false
-  }
-
-  private _OnNewHeads(header: Header) {
-    assert(this._started, 'Has to be started to process new heads.')
-
-    this._chainHeight = header.number.toNumber()
-
-    debug(`New block found at height #${this._chainHeight.toString()}`)
-  }
-
-  public async fetchBlock(height: number): Promise<QueryEventBlock> {
-    if (height > this._chainHeight) {
-      throw new Error(
-        `Cannot fetch block at height ${height}, current chain height is ${this._chainHeight}`
-      )
-    }
-    return retry(
-      () => this._doBlockProduce(height),
-      BLOCK_PRODUCER_FETCH_RETRIES,
-      new ConstantBackOffStrategy(1000 * 5)
-    ) // retry after 5 seconds
-  }
-
-  /**
-   * This sub-routine does the actual fetching and block processing.
-   * It can throw errors which should be handled by the top-level code
-   * (in this case _produce_block())
-   */
-  private async _doBlockProduce(height: number): Promise<QueryEventBlock> {
-    debug(`Fetching block #${height.toString()}`)
-
-    const targetHash = await this.substrateService.getBlockHash(
-      height.toString()
-    )
-    debug(`\tHash ${targetHash.toString()}.`)
-
-    const records = await this.substrateService.eventsAt(targetHash)
-
-    debug(`\tRead ${records.length} events.`)
-
-    let blockExtrinsics: Extrinsic[] = []
-    const signedBlock = await this.substrateService.getBlock(targetHash)
-
-    debug(`\tFetched full block.`)
-
-    blockExtrinsics = signedBlock.block.extrinsics.toArray()
-    const blockEvents: IQueryEvent[] = records.map(
-      (record, index): IQueryEvent => {
-        // Extract the phase, event
-        const { phase } = record
-
-        // Try to recover extrinsic: only possible if its right phase, and extrinsics arra is non-empty, the last constraint
-        // is needed to avoid events from build config code in genesis, and possibly other cases.
-        const extrinsic =
-          phase.isApplyExtrinsic && blockExtrinsics.length
-            ? blockExtrinsics[
-                Number.parseInt(phase.asApplyExtrinsic.toString())
-              ]
-            : undefined
-
-        const event = new QueryEvent(record, height, index, extrinsic)
-
-        // Reduce log verbosity and log only if a flag is set
-        if (process.env.LOG_QUERY_EVENTS) {
-          event.log(0, debug)
-        }
-
-        return event
-      }
-    )
-
-    const eventBlock = new QueryEventBlock(height, blockEvents)
-    //this.emit('QueryEventBlock', query_block);
-    debug(`Produced query event block.`)
-    return eventBlock
-  }
-
-  private async checkHeightOrWait(): Promise<void> {
-    return await withTimeout(
-      waitFor(
-        // when to resolve
-        () => this._blockToProduceNext <= this._chainHeight,
-        //exit condition
-        () => !this._started
-      ),
-      `Timed out: no block has been produced within last ${NEW_BLOCK_TIMEOUT_MS} seconds`,
-      NEW_BLOCK_TIMEOUT_MS
-    )
-  }
-
-  public async *blockHeights(): AsyncGenerator<number> {
-    while (this._started) {
-      await this.checkHeightOrWait()
-      debug(`Yield: ${this._blockToProduceNext.toString()}`)
-      yield this._blockToProduceNext
-      this._blockToProduceNext++
-    }
-  }
-}

query-node/index-builder/src/indexer/IBlockProducer.ts

@@ -1,28 +0,0 @@
-export interface IBlockProducer<T> {
-  /**
-   * Fetches a block at the given height. Throws an error if the
-   * requested height is greater than the current chain height
-   *
-   * @param height Height to fetch a block at.
-   * @returns block data as specified by the generic type
-   */
-  fetchBlock(height: number): Promise<T>
-
-  /**
-   *  Async generator to fetch finalized block heights from the underlying
-   *  substrate chain. If it already at the tip of the chain, waits until the
-   *  next block is finalized.
-   */
-  blockHeights(): AsyncGenerator<number>
-
-  /**
-   *
-   * @param height Height from which the block production will start
-   */
-  start(height: number): Promise<void>
-
-  /**
-   *  Stops producing the block
-   */
-  stop(): Promise<void>
-}

query-node/index-builder/src/indexer/IStatusService.ts

@@ -1,4 +0,0 @@
-export interface IStatusService {
-  getIndexerHead(): Promise<number>;
-  isComplete(h: number): Promise<boolean>
-}

query-node/index-builder/src/indexer/IndexBuilder.ts

@@ -1,129 +0,0 @@
-// @ts-check
-import { QueryEventBlock } from '../model'
-import * as _ from 'lodash'
-
-import Debug from 'debug'
-import { doInTransaction } from '../db/helper'
-import { PooledExecutor } from './PooledExecutor'
-import { SubstrateEventEntity } from '../entities'
-import { Inject, Service } from 'typedi'
-import { BLOCK_START_CHANNEL, BLOCK_COMPLETE_CHANNEL } from './redis-keys'
-import { IBlockProducer } from './IBlockProducer'
-import { assert } from 'console'
-import { EventEmitter } from 'events'
-import { IStatusService } from './IStatusService'
-import { WORKERS_NUMBER } from './indexer-consts'
-import { toPayload } from '../model/BlockPayload'
-
-const debug = Debug('index-builder:indexer')
-
-@Service('IndexBuilder')
-export class IndexBuilder extends EventEmitter {
-  private _stopped = false
-
-  public constructor(
-    @Inject('BlockProducer')
-    protected readonly producer: IBlockProducer<QueryEventBlock>,
-    @Inject('StatusService') protected readonly statusService: IStatusService
-  ) {
-    super()
-  }
-
-  async start(atBlock?: number): Promise<void> {
-    assert(this.producer, 'BlockProducer must be set')
-    assert(this.statusService, 'StatusService must be set')
-
-    debug('Spawned worker.')
-
-    const lastHead = await this.statusService.getIndexerHead()
-
-    debug(`Last indexed block in the database: ${lastHead.toString()}`)
-    let startBlock = lastHead + 1
-
-    if (atBlock) {
-      debug(`Got block height hint: ${atBlock}`)
-      if (lastHead >= 0 && process.env.FORCE_BLOCK_HEIGHT !== 'true') {
-        debug(
-          `WARNING! The database contains indexed blocks.
-          The last indexed block height is ${lastHead}. The indexer 
-          will continue from block ${lastHead} ignoring the start 
-          block height hint. Set the environment variable FORCE_BLOCK_HEIGHT to true 
-          if you want to start from ${atBlock} anyway.`
-        )
-      } else {
-        startBlock = Math.max(startBlock, atBlock)
-      }
-    }
-
-    debug(`Starting the block indexer at block ${startBlock}`)
-
-    await this.producer.start(startBlock)
-
-    const poolExecutor = new PooledExecutor(
-      WORKERS_NUMBER,
-      this.producer.blockHeights(),
-      this._indexBlock()
-    )
-
-    debug('Started a pool of indexers.')
-
-    try {
-      await poolExecutor.run(() => this._stopped)
-    } finally {
-      await this.stop()
-    }
-  }
-
-  async stop(): Promise<void> {
-    debug('Index builder has been stopped')
-    this._stopped = true
-    await this.producer.stop()
-  }
-
-  _indexBlock(): (h: number) => Promise<void> {
-    return async (h: number) => {
-      debug(`Processing block #${h.toString()}`)
-
-      const done = await this.statusService.isComplete(h)
-      if (done) {
-        debug(`Block ${h} has already been indexed`)
-        return
-      }
-
-      this.emit(BLOCK_START_CHANNEL, {
-        height: h,
-      })
-
-      const queryEventsBlock: QueryEventBlock = await this.producer.fetchBlock(
-        h
-      )
-
-      await this.transformAndPersist(queryEventsBlock)
-      debug(`Done block #${h.toString()}`)
-
-      this.emit(BLOCK_COMPLETE_CHANNEL, toPayload(queryEventsBlock))
-    }
-  }
-
-  async transformAndPersist(queryEventsBlock: QueryEventBlock): Promise<void> {
-    const batches = _.chunk(queryEventsBlock.query_events, 100)
-    debug(
-      `Read ${queryEventsBlock.query_events.length} events; saving in ${batches.length} batches`
-    )
-
-    await doInTransaction(async (queryRunner) => {
-      debug(`Saving event entities`)
-
-      let saved = 0
-      for (let batch of batches) {
-        const qeEntities = batch.map((event) =>
-          SubstrateEventEntity.fromQueryEvent(event)
-        )
-        await queryRunner.manager.save(qeEntities)
-        saved += qeEntities.length
-        batch = []
-        debug(`Saved ${saved} events`)
-      }
-    })
-  }
-}

query-node/index-builder/src/indexer/IndexerStatusService.ts

@@ -1,159 +0,0 @@
-import Container, { Service } from 'typedi'
-import { getIndexerHead as slowIndexerHead } from '../db/dal'
-import Debug from 'debug'
-import * as IORedis from 'ioredis'
-import { logError } from '../utils/errors'
-import { BlockPayload } from './../model'
-import { stringifyWithTs } from '../utils/stringify'
-import {
-  INDEXER_HEAD_BLOCK,
-  INDEXER_NEW_HEAD_CHANNEL,
-  BLOCK_START_CHANNEL,
-  BLOCK_COMPLETE_CHANNEL,
-  EVENT_LAST,
-  EVENT_TOTAL,
-  BLOCK_CACHE_PREFIX,
-} from './redis-keys'
-import { IStatusService } from './IStatusService'
-import { RedisClientFactory } from '../redis/RedisClientFactory'
-import { BLOCK_CACHE_TTL_SEC, INDEXER_HEAD_TTL_SEC } from './indexer-consts'
-
-const debug = Debug('index-builder:status-server')
-
-@Service('StatusService')
-export class IndexerStatusService implements IStatusService {
-  private redisSub: IORedis.Redis
-  private redisPub: IORedis.Redis
-  private redisClient: IORedis.Redis
-
-  constructor() {
-    const clientFactory = Container.get<RedisClientFactory>(
-      'RedisClientFactory'
-    )
-    this.redisSub = clientFactory.getClient()
-    this.redisPub = clientFactory.getClient()
-    this.redisClient = clientFactory.getClient()
-    this.redisSub
-      .subscribe([BLOCK_START_CHANNEL, BLOCK_COMPLETE_CHANNEL])
-      .then(() => debug(`Subscribed to the indexer channels`))
-      .catch((e) => {
-        throw new Error(e)
-      })
-
-    this.redisSub.on('message', (channel, message) => {
-      this.onNewMessage(channel, message).catch((e) => {
-        throw new Error(`Error connecting to Redis: ${logError(e)}`)
-      })
-    })
-  }
-
-  async onBlockComplete(payload: BlockPayload): Promise<void> {
-    if (await this.isComplete(payload.height)) {
-      debug(`Ignoring ${payload.height}: already processed`)
-      return
-    }
-    // TODO: move into a separate cache service and cache also events, extrinsics etc
-    await this.updateBlockCache(payload)
-    await this.updateIndexerHead()
-    await this.updateLastEvents(payload)
-  }
-
-  async onNewMessage(channel: string, message: string): Promise<void> {
-    if (channel === BLOCK_COMPLETE_CHANNEL) {
-      const payload = JSON.parse(message) as BlockPayload
-      await this.onBlockComplete(payload)
-    }
-  }
-
-  async getIndexerHead(): Promise<number> {
-    const headVal = await this.redisClient.get(INDEXER_HEAD_BLOCK)
-    if (headVal !== null) {
-      return Number.parseInt(headVal)
-    }
-
-    debug(`Redis cache is empty, loading from the database`)
-    const _indexerHead = await this.slowIndexerHead()
-    debug(`Loaded ${_indexerHead}`)
-    await this.updateHeadKey(_indexerHead)
-    return _indexerHead
-  }
-
-  /**
-   * Simply re-delegate to simplify mocking purpose
-   * */
-  async slowIndexerHead(): Promise<number> {
-    return await slowIndexerHead()
-  }
-
-  private async updateHeadKey(height: number): Promise<void> {
-    // set TTL to the indexer head key. If the indexer status is stuck for some reason,
-    // this will result in fetching the indexer head from the database
-    await this.redisClient.set(
-      INDEXER_HEAD_BLOCK,
-      height,
-      'EX',
-      INDEXER_HEAD_TTL_SEC
-    )
-    await this.redisPub.publish(
-      INDEXER_NEW_HEAD_CHANNEL,
-      stringifyWithTs({ height })
-    )
-    debug(`Updated the indexer head to ${height}`)
-  }
-
-  async updateLastEvents(payload: BlockPayload): Promise<void> {
-    if (!payload.events) {
-      debug(`No events in the payload`)
-      return
-    }
-    for (const e of payload.events) {
-      await this.redisClient.hset(EVENT_LAST, e.name, e.id)
-      await this.redisClient.hincrby(EVENT_TOTAL, e.name, 1)
-      await this.redisClient.hincrby(EVENT_TOTAL, 'ALL', 1)
-    }
-  }
-
-  async updateBlockCache(payload: BlockPayload): Promise<void> {
-    await this.redisClient.set(
-      `${BLOCK_CACHE_PREFIX}:${payload.height}`,
-      JSON.stringify(payload),
-      'EX',
-      BLOCK_CACHE_TTL_SEC
-    )
-  }
-
-  async isComplete(h: number): Promise<boolean> {
-    const head = await this.getIndexerHead() // this op is fast
-    if (h <= head) {
-      return true
-    }
-    const key = `${BLOCK_CACHE_PREFIX}:${h}`
-    const isRecent = await this.redisClient.get(key)
-    const isComplete = isRecent !== null
-    if (isComplete) {
-      await this.redisClient.expire(key, BLOCK_CACHE_TTL_SEC)
-    }
-    return isComplete
-  }
-
-  /**
-   *
-   * @param h height of the completed block
-   */
-  async updateIndexerHead(): Promise<void> {
-    let head = await this.getIndexerHead()
-    let nextHeadComplete = false
-    do {
-      nextHeadComplete = await this.isComplete(head + 1)
-      if (nextHeadComplete) {
-        head++
-      }
-    } while (nextHeadComplete)
-
-    const currentHead = await this.getIndexerHead()
-    if (head > currentHead) {
-      debug(`Updating the indexer head from ${currentHead} to ${head}`)
-      await this.updateHeadKey(head)
-    }
-  }
-}

query-node/index-builder/src/indexer/PooledExecutor.ts

@@ -1,95 +0,0 @@
-// This is a modified version of 
-// https://github.com/rodrigogs/promise-pool/blob/master/index.js
-// h/t @rodrigogs
-
-/**
- * This promise pool keeps looping `Promise.all`'s promises until the last generator
- * item is submitted to the processor.
- *
- * @example
- * const promisePool = require('@rodrigogs/promisePool');
- *
- * function* generatorFunction(start, end) { // Could be an async generator
- *   for (let i = start; i <= end; i += 1) {
- *     yield i;
- *   }
- * }
- *
- * function processor(generatorValue) { // Could be an async function
- *   console.log(generatorValue);
- * }
- *
- * await promisePool({
- *   generator: generatorFunction(100, 1000),
- *   processor,
- *   concurrency: 10,
- * });
- *
- * @generator
- * @function promisePool
- * @param {Object} options Options object
- * @param {Generator|AsyncGenerator} options.generator Initialized generator or
- * async generator object to feed the poller
- * @param {Function} options.processor This function will be concurrently executed
- * against each generator value.
- * If a `false` value is strictly returned from the processor function, its very `thread` dies.
- * The poller is able to resolve promises, so it can be an async function.
- * @param {Number} options.concurrency Number of parallel processors running simultaneously.
- * @param {Function} [options.killer=undefined] An optional killer function to interrupt the poller
- * from an outside scope.
- * This function will be called in every iteration and once it returns `true` the `threads`
- * will begin to stop after finishing the current processor. This can be an async function.
- * @returns {Promise<void>}
- */
-import Debug from 'debug';
-import { logError } from '../utils/errors';
-const debug = Debug('index-builder:pooled-executor');
-
-
-export class PooledExecutor<T, R, N> {
-  
-  constructor(public readonly concurrency: number, 
-    public readonly generator: AsyncGenerator<T, R, N>,
-    public readonly processor: (v: T | R) => Promise<void> ) {
-  }
-
-  public async run(killer?: () => boolean): Promise<void> {
-    const queue = Array(this.concurrency).fill(null);
-
-    let stop = false;
-    const poller = async () => {
-      do {
-        let next = undefined;
-        try {
-          next = await this.generator.next();
-        } catch (e) {
-          debug(`Error getting next generator value`);
-          throw new Error(`Error getting next generator value, ${logError(e)}`);
-        }
-        if (next == undefined || next.done === true) {
-          debug('Generator is done, exiting');
-          break;
-        }
-
-        try {
-          // do the acutal work on the grabbed value
-          await this.processor(next.value);
-        } catch (e) {
-          debug(`Error during execution`);
-          throw new Error(`One of the workers have failed, stopping the pool. ${logError(e)}`);
-        } 
-
-        if (killer && killer()) {
-          debug(`Stopping the executor`);
-          stop = true;
-        }
-      } while (!stop);
-    };
-
-    // stop when any of the workers die
-    await Promise.all(queue.map(poller));
-  }
-}
-
-
-

query-node/index-builder/src/indexer/RedisRelayer.ts

@@ -1,41 +0,0 @@
-import Container, { Service } from 'typedi'
-import { BLOCK_COMPLETE_CHANNEL, BLOCK_START_CHANNEL } from './redis-keys'
-import { IndexBuilder } from './IndexBuilder'
-import IORedis = require('ioredis')
-import Debug from 'debug'
-import { stringifyWithTs } from '../utils/stringify'
-import { logError } from '../utils/errors'
-import { RedisClientFactory } from '../redis/RedisClientFactory'
-
-const debug = Debug('index-builder:redis-relayer')
-
-/**
- *  This class is listening to local events and relays them to Redis
- *  The main reason for it is to decouple most of the core classes from the
- *  Redis infrastructure
- **/
-@Service('RedisRelayer')
-export class RedisRelayer {
-  private redisPub: IORedis.Redis
-  private indexBuilder!: IndexBuilder
-
-  public constructor() {
-    const clientFactory = Container.get<RedisClientFactory>(
-      'RedisClientFactory'
-    )
-    this.redisPub = clientFactory.getClient()
-    this.indexBuilder = Container.get<IndexBuilder>('IndexBuilder')
-    // Relay local events globablly via redis
-    const events = [BLOCK_COMPLETE_CHANNEL, BLOCK_START_CHANNEL]
-    events.forEach((event) => {
-      this.indexBuilder.on(event, (data) => this.relayToRedis(event, data))
-    })
-  }
-
-  private relayToRedis(topic: string, data: Record<string, unknown>) {
-    debug(`Relaying to redis: ${topic} ${JSON.stringify(data)}`)
-    this.redisPub
-      .publish(topic, stringifyWithTs(data))
-      .catch((e) => debug(`${logError(e)}`))
-  }
-}

query-node/index-builder/src/indexer/index.ts

@@ -1,6 +0,0 @@
-export * from './IBlockProducer';
-export * from './BlockProducer';
-export * from './IndexBuilder';
-export * from './PooledExecutor';
-export * from './IndexerStatusService';
-export * from './redis-keys';

query-node/index-builder/src/indexer/indexer-consts.ts

@@ -1,26 +0,0 @@
-import { numberEnv } from '../utils/env-flags'
-
-// keep one hour of blocks by default
-export const BLOCK_CACHE_TTL_SEC = numberEnv('BLOCK_CACHE_TTL_SEC') || 60 * 60
-// expire indexer head key after 15 minutes
-export const INDEXER_HEAD_TTL_SEC = numberEnv('INDEXER_HEAD_TTL_SEC') || 60 * 15
-
-// Number of indexer workers
-export const WORKERS_NUMBER = numberEnv('INDEXER_WORKERS') || 5
-
-// Number of time the worker tries to fetch a block
-export const BLOCK_PRODUCER_FETCH_RETRIES =
-  numberEnv('BLOCK_PRODUCER_FETCH_RETRIES') || 3
-
-// Timeout (in milliseconds) for each API call
-export const SUBSTRATE_API_TIMEOUT =
-  numberEnv('SUBSTRATE_API_TIMEOUT') || 1000 * 60 * 5
-// Number of times an API call is retried before giving up and throwing and error
-export const SUBSTRATE_API_CALL_RETRIES =
-  numberEnv('SUBSTRATE_API_CALL_RETRIES') || 5
-
-// If the block producer does not recieve a new block within this time limit,
-// panic and thow an error. This is needed to prevent the situation when the
-// API is disconnected yet no error is thrown, with the block producer stuck in the waiting loop
-export const NEW_BLOCK_TIMEOUT_MS =
-  numberEnv('NEW_BLOCK_TIMEOUT_MS') || 60 * 10 * 1000 // 10 minutes

query-node/index-builder/src/indexer/redis-keys.ts

@@ -1,7 +0,0 @@
-export const INDEXER_NEW_HEAD_CHANNEL = 'hydra:indexer:head:new';
-export const INDEXER_HEAD_BLOCK = 'hydra:indexer:head';
-export const BLOCK_COMPLETE_CHANNEL = 'hydra:indexer:complete:block';
-export const BLOCK_START_CHANNEL = 'hydra:indexer:started:block';
-export const EVENT_LAST = 'hydra:indexer:last:event';
-export const EVENT_TOTAL = 'hydra:indexer:total:event';
-export const BLOCK_CACHE_PREFIX = 'hydra:indexer:cache:block';

query-node/index-builder/src/interfaces/index.ts

@@ -1,2 +0,0 @@
-export * from '../model/substrate-interfaces';
-export * from './json-types';

query-node/index-builder/src/interfaces/json-types.ts

@@ -1,9 +0,0 @@
-import * as BN from 'bn.js';
-
-export declare type AnyJsonField = string | number | boolean | AnyJson | Array<AnyJsonField> | Array<AnyJson>
-
-export declare type AnyJson = {
-    [index: string]: AnyJsonField;
-};
-
-export declare type AnyNumber = BN | BigInt | Uint8Array | number | string;

query-node/index-builder/src/migrations/IndexerSchema.ts

@@ -1,30 +0,0 @@
-import {MigrationInterface, QueryRunner} from "typeorm";
-
-export class IndexerSchema implements MigrationInterface {
-    name = 'IndexerSchema1601637366082'
-
-    public async up(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`CREATE TABLE "processed_events_log" ("id" SERIAL NOT NULL, "processor" character varying NOT NULL, "event_id" character varying NOT NULL, "last_scanned_block" integer NOT NULL, "updated_at" TIMESTAMP NOT NULL DEFAULT now(), CONSTRAINT "PK_2d074516252c7a3090ddc44b9a5" PRIMARY KEY ("id"))`);
-        await queryRunner.query(`CREATE INDEX "IDX_1038d15b8a821947029f3a7d4e" ON "processed_events_log" ("event_id") `);
-        await queryRunner.query(`CREATE TABLE "substrate_extrinsic" ("id" SERIAL NOT NULL, "tip" numeric NOT NULL, "block_number" numeric NOT NULL, "version_info" character varying NOT NULL, "meta" jsonb NOT NULL, "method" character varying NOT NULL, "section" character varying NOT NULL, "args" jsonb NOT NULL, "signer" character varying NOT NULL, "signature" character varying NOT NULL, "nonce" integer NOT NULL, "era" jsonb NOT NULL, "hash" character varying NOT NULL, "is_signed" boolean NOT NULL, "created_at" TIMESTAMP NOT NULL DEFAULT now(), "created_by_id" character varying NOT NULL DEFAULT 'hydra-indexer', "updated_at" TIMESTAMP DEFAULT now(), "updated_by_id" character varying, "deleted_at" TIMESTAMP, "deleted_by_id" character varying, "version" integer NOT NULL, CONSTRAINT "PK_a4c7ce64007d5d29f412c071373" PRIMARY KEY ("id"))`);
-        await queryRunner.query(`CREATE INDEX "IDX_2edcefa903e8eedd4c6478ddc5" ON "substrate_extrinsic" ("block_number") `);
-        await queryRunner.query(`CREATE TABLE "substrate_event" ("id" character varying NOT NULL, "name" character varying NOT NULL, "section" character varying, "method" character varying NOT NULL, "phase" jsonb NOT NULL, "block_number" integer NOT NULL, "index" integer NOT NULL, "params" jsonb NOT NULL, "created_at" TIMESTAMP NOT NULL DEFAULT now(), "created_by_id" character varying NOT NULL DEFAULT 'hydra-indexer', "updated_at" TIMESTAMP DEFAULT now(), "updated_by_id" character varying, "deleted_at" TIMESTAMP, "deleted_by_id" character varying, "version" integer NOT NULL, "extrinsic_id" integer, CONSTRAINT "REL_039d734d88baa87b2a46c95117" UNIQUE ("extrinsic_id"), CONSTRAINT "PK_eb7d4a5378857e4a4e82fb6e16d" PRIMARY KEY ("id"))`);
-        await queryRunner.query(`CREATE INDEX "IDX_2f2ba86b666ea355ef4376fdfb" ON "substrate_event" ("name") `);
-        await queryRunner.query(`CREATE INDEX "IDX_4c0dda69c6781e1898e66e97f6" ON "substrate_event" ("block_number") `);
-        await queryRunner.query(`CREATE UNIQUE INDEX "IDX_71e6776b5604b82d0d17d0c8c4" ON "substrate_event" ("block_number", "index") `);
-        await queryRunner.query(`ALTER TABLE "substrate_event" ADD CONSTRAINT "FK_039d734d88baa87b2a46c951175" FOREIGN KEY ("extrinsic_id") REFERENCES "substrate_extrinsic"("id") ON DELETE NO ACTION ON UPDATE NO ACTION`);
-    }
-
-    public async down(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`ALTER TABLE "substrate_event" DROP CONSTRAINT "FK_039d734d88baa87b2a46c951175"`);
-        await queryRunner.query(`DROP INDEX "IDX_71e6776b5604b82d0d17d0c8c4"`);
-        await queryRunner.query(`DROP INDEX "IDX_4c0dda69c6781e1898e66e97f6"`);
-        await queryRunner.query(`DROP INDEX "IDX_2f2ba86b666ea355ef4376fdfb"`);
-        await queryRunner.query(`DROP TABLE "substrate_event"`);
-        await queryRunner.query(`DROP INDEX "IDX_2edcefa903e8eedd4c6478ddc5"`);
-        await queryRunner.query(`DROP TABLE "substrate_extrinsic"`);
-        await queryRunner.query(`DROP INDEX "IDX_1038d15b8a821947029f3a7d4e"`);
-        await queryRunner.query(`DROP TABLE "processed_events_log"`);
-    }
-
-}

query-node/index-builder/src/model/BlockPayload.ts

@@ -1,20 +0,0 @@
-import { formatEventId, QueryEventBlock } from '.'
-import { withTs } from '../utils/stringify'
-
-export interface BlockPayload {
-  height: number,
-  ts: number 
-  events?: { id: string, name: string }[]
-}
-
-export function toPayload(qeb: QueryEventBlock): BlockPayload {
-    return (withTs({
-      height: qeb.block_number,
-      events: qeb.query_events.map((e) => {
-        return {
-          name: e.eventName,
-          id: formatEventId(qeb.block_number, e.index)
-        }
-      })
-    }) as unknown) as BlockPayload
-}

query-node/index-builder/src/model/QueryEvent.ts

@@ -1,97 +0,0 @@
-import { EventRecord, Extrinsic } from '@polkadot/types/interfaces';
-import { Codec } from '@polkadot/types/types';
-
-export interface IQueryEvent {
-  eventRecord: EventRecord;
-  blockNumber: number;
-  indexInBlock: number;
-  eventName: string;
-  eventMethod: string;
-  eventParams: EventParameters;
-  extrinsic?: Extrinsic;
-  index: number
-}
-
-export interface EventParameters {
-  // TODO how do we reprsent it?
-  [key: string]: Codec;
-}
-
-export class QueryEvent implements IQueryEvent {
-  readonly eventRecord: EventRecord;
-
-  readonly blockNumber: number;
-
-  readonly extrinsic?: Extrinsic;
-
-  readonly indexInBlock: number;
-
-  constructor(event_record: EventRecord, block_number: number, indexInBlock: number, extrinsic?: Extrinsic) {
-    this.eventRecord = event_record;
-    this.extrinsic = extrinsic;
-    this.blockNumber = block_number;
-    this.indexInBlock = indexInBlock;
-  }
-
-  get eventName(): string {
-    const event = this.eventRecord.event;
-
-    return `${event.section}.${event.method}`;
-  }
-
-  get eventMethod(): string {
-    return this.eventRecord.event.method;
-  }
-
-  get eventParams(): EventParameters {
-    const { event } = this.eventRecord;
-    const params: EventParameters = {};
-
-    // Event data can be Null(polkadot type)
-    if (!event.data.length) return params;
-
-    event.data.forEach((data, index) => {
-      params[event.typeDef[index].type] = data;
-    });
-    return params;
-  }
-
-  // Get event index as number
-  get index(): number {
-    return this.indexInBlock;
-  }
-
-  log(indent: number, logger: (str: string) => void): void {
-    // Extract the phase, event
-    const { event, phase } = this.eventRecord;
-
-    // Event data can be Null(polkadot type)
-    if (!event.data.length) return;
-
-    logger(`\t\t\tParameters:`);
-    event.data.forEach((data, index) => {
-      logger(`\t\t\t\t${JSON.stringify(event.typeDef[index], null, 2)}: ${data.toString()}`);
-    });
-
-    logger(
-      `\t\t\tExtrinsic: ${
-        this.extrinsic ? this.extrinsic.method.sectionName + '.' + this.extrinsic.method.methodName : 'NONE'
-      }`
-    );
-    logger(`\t\t\t\tPhase: ${phase.toString()}`);
-
-    if (this.extrinsic) {
-      logger(`\t\t\t\tParameters:`);
-      this.extrinsic.args.forEach((arg) => {
-        logger(`\t\t\t\t\t${arg.toRawType()}: ${arg.toString()}`);
-      });
-    }
-  }
-}
-
-// return id in the format 000000..00<blockNum>-000<index> 
-// the reason for such formatting is to be able to efficiently sort events 
-// by ID
-export function formatEventId(blockNumber: number, index: number): string {
-  return `${String(blockNumber).padStart(16, '0')}-${String(index).padStart(6, '0')}`;
-}

query-node/index-builder/src/model/QueryEventBlock.ts

@@ -1,13 +0,0 @@
-//import { BlockNumber } from '@polkadot/types/interfaces';
-import { IQueryEvent } from './';
-
-export class QueryEventBlock {
-  readonly block_number: number;
-
-  readonly query_events: IQueryEvent[];
-
-  constructor(block_number: number, query_events: IQueryEvent[]) {
-    this.block_number = block_number;
-    this.query_events = query_events;
-  }
-}

query-node/index-builder/src/model/QueryEventProcessingPack.ts

@@ -1,11 +0,0 @@
-// @ts-check
-
-import { DatabaseManager } from '../db';
-import { SubstrateEvent } from '.';
-
-export type QueryEventProcessorResult = void | Promise<void>;
-export type EventHandlerFunc = (db: DatabaseManager, event: SubstrateEvent) => QueryEventProcessorResult
-
-export interface QueryEventProcessingPack {
-  [index: string]: EventHandlerFunc;
-}

query-node/index-builder/src/model/index.ts

@@ -1,6 +0,0 @@
-export * from './QueryEvent';
-export * from './QueryEventBlock';
-export * from './QueryEventProcessingPack';
-export * from './substrate-interfaces';
-export * from './BlockPayload';
-

query-node/index-builder/src/model/substrate-interfaces.ts

@@ -1,40 +0,0 @@
-import { AnyJson, AnyJsonField } from '../interfaces/json-types'
-import * as BN from 'bn.js';
-
-
-export interface EventParam {
-  type: string;
-  name: string;
-  value: AnyJsonField;
-}
-
-export interface ExtrinsicArg {
-  type: string;
-  name: string;
-  value: AnyJsonField;
-}
-
-export interface SubstrateEvent {
-  name: string;
-  method: string;
-  section?: string;
-  params: Array<EventParam>;
-  index: number;
-  id: string;
-  blockNumber: number;
-  extrinsic?: SubstrateExtrinsic;
-}
-
-export interface SubstrateExtrinsic {
-  method: string;
-  section: string;
-  versionInfo?: string;
-  meta?: AnyJson;
-  era?: AnyJson;
-  signer: string;
-  args: ExtrinsicArg[];
-  signature?: string;
-  hash?: string;
-  tip: BN;
-}
-

query-node/index-builder/src/node/QueryNode.ts

@@ -1,124 +0,0 @@
-// @ts-check
-import { ApiPromise, WsProvider /*RuntimeVersion*/ } from '@polkadot/api'
-
-import { IndexBuilder } from '..'
-import { IndexerOptions } from '.'
-import Debug from 'debug'
-
-import Container, { Inject, Service } from 'typedi'
-import registry from '../substrate/typeRegistry'
-import typesSpec from '../substrate/typesSpec'
-
-import { RedisClientFactory } from '../redis/RedisClientFactory'
-import { retry, waitFor } from '../utils/wait-for'
-import { SUBSTRATE_API_CALL_RETRIES } from '../indexer/indexer-consts'
-import { RedisRelayer } from '../indexer/RedisRelayer'
-
-const debug = Debug('index-builder:query-node')
-
-export enum QueryNodeState {
-  NOT_STARTED,
-  BOOTSTRAPPING,
-  STARTING,
-  STARTED,
-  STOPPING,
-  STOPPED,
-}
-
-@Service('QueryNode')
-export class QueryNode {
-  // State of the node,
-  private _state: QueryNodeState
-
-  // API instance for talking to Substrate full node.
-  @Inject('ApiPromise')
-  readonly api!: ApiPromise
-
-  // Query index building node.
-  @Inject('IndexBuilder')
-  readonly indexBuilder!: IndexBuilder
-
-  @Inject('IndexerOptions')
-  readonly indexerOptions!: IndexerOptions
-
-  private constructor() {
-    this._state = QueryNodeState.NOT_STARTED
-
-    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
-  }
-
-  static async create(options: IndexerOptions): Promise<QueryNode> {
-    // TODO: Do we really need to do it like this?
-    // Its pretty ugly, but the registrtion appears to be
-    // accessing some sort of global state, and has to be done after
-    // the provider is created.
-
-    Container.set('IndexerOptions', options)
-
-    const { wsProviderURI, types } = options
-
-    await QueryNode.createApi(wsProviderURI, types)
-
-    const redisURL = options.redisURI || process.env.REDIS_URI
-    Container.set('RedisClientFactory', new RedisClientFactory(redisURL))
-    Container.set('RedisRelayer', new RedisRelayer())
-    return Container.get<QueryNode>('QueryNode')
-  }
-
-  static async createApi(
-    wsProviderURI: string,
-    types: Record<string, Record<string, string>> = {}
-  ): Promise<void> {
-    const provider = new WsProvider(wsProviderURI)
-
-    const names = Object.keys(types)
-
-    names.length && debug(`Injected types: ${names.join(', ')}`)
-
-    // Create the API and wait until ready
-    const api = await retry(
-      () =>
-        new ApiPromise({ provider, registry, types, typesSpec }).isReady,
-      SUBSTRATE_API_CALL_RETRIES
-    )
-
-    debug(`Api is ready`)
-
-    Container.set('ApiPromise', api)
-  }
-
-  async start(): Promise<void> {
-    if (this._state != QueryNodeState.NOT_STARTED)
-      throw new Error('Starting requires ')
-
-    this._state = QueryNodeState.STARTED
-
-    // Start only the indexer
-    try {
-      await this.indexBuilder.start(this.indexerOptions.atBlock)
-    } finally {
-      // if due tot error, it will bubble up
-      debug(`Stopping the query node`)
-      // stop only when the indexer has stopped or thrown an error
-      this._state = QueryNodeState.STOPPED
-    }
-  }
-
-  async stop(): Promise<void> {
-    debug(`Query node state: ${this._state}`)
-    if (this._state !== QueryNodeState.STARTED) {
-      debug('Query node is not running')
-      return
-    }
-
-    this._state = QueryNodeState.STOPPING
-
-    await this.indexBuilder.stop()
-
-    await waitFor(() => this.state == QueryNodeState.STOPPED)
-  }
-
-  get state(): QueryNodeState {
-    return this._state
-  }
-}

query-node/index-builder/src/node/QueryNodeManager.ts

@@ -1,103 +0,0 @@
-import { QueryNode } from '.'
-import { MappingsProcessor } from '../processor/MappingsProcessor'
-import { IndexerOptions, ProcessorOptions } from './QueryNodeStartOptions'
-import { createDBConnection } from '../db/helper'
-import { Connection, getConnection } from 'typeorm'
-import Debug from 'debug'
-import Container from 'typedi'
-import { logError } from '../utils/errors'
-import { log } from 'console'
-import { ISubstrateService } from '../substrate'
-import { RedisClientFactory } from '../redis'
-
-const debug = Debug('index-builder:manager')
-
-// Respondible for creating, starting up and shutting down the query node.
-// Currently this class is a bit thin, but it will almost certainly grow
-// as the integration logic between the library types and the application
-// evolves, and that will pay abstraction overhead off in terms of testability of otherwise
-// anonymous code in root file scope.
-export class QueryNodeManager {
-  private _query_node!: QueryNode
-
-  constructor() {
-    // TODO: a bit hacky, but okay for now
-    debug(
-      `Hydra indexer lib version: ${
-        process.env.npm_package_dependencies__dzlzv_hydra_indexer_lib ||
-        'UNKNOWN'
-      }`
-    )
-    // Hook into application
-    // eslint-disable-next-line
-    process.on('exit', () =>
-      QueryNodeManager.cleanUp().catch((e) => log(`${logError(e)}`))
-    )
-  }
-
-  /**
-   * Starts the indexer
-   *
-   * @param options options passed to create the indexer service
-   */
-  async index(options: IndexerOptions): Promise<void> {
-    if (this._query_node)
-      throw Error('Cannot start the same manager multiple times.')
-    await createDBConnection()
-
-    this._query_node = await QueryNode.create(options)
-    try {
-      await this._query_node.start()
-    } finally {
-      debug('Trying to stop the query node')
-      await QueryNodeManager.cleanUp()
-    }
-  }
-
-  /**
-   * Starts the mappings processor
-   *
-   * @param options options passed to create the mappings
-   */
-  async process(options: ProcessorOptions): Promise<void> {
-    const extraEntities = options.entities ? options.entities : []
-    await createDBConnection(extraEntities)
-
-    const processor = new MappingsProcessor(options)
-    await processor.start()
-  }
-
-  /**
-   * Run migrations in the "migrations" folder;
-   */
-  static async migrate(): Promise<void> {
-    let connection: Connection | undefined
-    try {
-      connection = await createDBConnection()
-      if (connection) await connection.runMigrations()
-    } finally {
-      if (connection) await connection.close()
-    }
-  }
-
-  static async cleanUp(): Promise<void> {
-    if (Container.has('QueryNode')) {
-      await Container.get<QueryNode>('QueryNode').stop()
-    }
-    if (Container.has('SubstrateService')) {
-      await Container.get<ISubstrateService>('SubstrateService').stop()
-    }
-    if (Container.has('RedisClientFactory')) {
-      Container.get<RedisClientFactory>('RedisClientFactory').stop()
-    }
-    try {
-      const connection = getConnection()
-      if (connection) {
-        debug('Closing the database connection')
-        await connection.close()
-      }
-    } catch (e) {
-      debug(`Error: ${logError(e)}`)
-    }
-  }
-}

query-node/index-builder/src/node/QueryNodeStartOptions.ts

@@ -1,32 +0,0 @@
-import { QueryEventProcessingPack } from '../model'
-import { BootstrapPack } from '../bootstrap'
-export type QueryNodeStartUpOptions =
-  | IndexerOptions
-  | ProcessorOptions
-  | BootstrapOptions
-
-export interface IndexerOptions {
-  atBlock?: number
-  typeRegistrator?: () => void
-  wsProviderURI: string
-  redisURI?: string
-  types?: Record<string, Record<string, string>>
-}
-
-export interface ProcessorOptions {
-  processingPack: QueryEventProcessingPack
-  // translates event handler to the even name, e.g. handleTreasuryDeposit -> treasury.Deposit
-  mappingToEventTranslator?: (mapping: string) => string
-  name?: string
-  atBlock?: number
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  entities?: any[]
-  indexerEndpointURL?: string
-}
-
-export interface BootstrapOptions {
-  atBlock?: number
-  typeRegistrator?: () => void
-  wsProviderURI: string
-  processingPack: BootstrapPack
-}

query-node/index-builder/src/node/index.ts

@@ -1,3 +0,0 @@
-export * from './QueryNode';
-export * from './QueryNodeManager';
-export * from './QueryNodeStartOptions';

query-node/index-builder/src/processor/DBSource.ts

@@ -1,54 +0,0 @@
-import { IProcessorSource, EventFilter } from './IProcessorSource';
-import { SubstrateEvent } from '../model';
-import { getRepository, MoreThan, In, FindConditions, Between } from 'typeorm';
-import { SubstrateEventEntity } from '../entities';
-import { Inject, Service } from 'typedi';
-import { IndexerStatusService } from '../indexer';
-import { getIndexerHead } from '../db';
-import { EventEmitter } from 'events';
-
-@Service('ProcessorSource')
-export class DBSource extends EventEmitter implements IProcessorSource {
-  
-
-  constructor(@Inject() protected indexerService: IndexerStatusService = new IndexerStatusService()) {
-    super();
-  }
-
-
-  subscribe(events: string[]): Promise<void> {
-    throw new Error("Method not implemented.");
-  }
-  
-  
-  async indexerHead(): Promise<number> {
-    return getIndexerHead();
-  }
-
-  async nextBatch(filter: EventFilter, size: number): Promise<SubstrateEvent[]> {
-    //const indexerHead = await this.indexerService.getIndexerHead(); 
-    const where: FindConditions<SubstrateEventEntity>[]= [{
-      name: In(filter.names),
-      blockNumber: Between(filter.fromBlock, filter.toBlock) 
-    }]
-
-    if (filter.afterID) {
-      where.push({ id: MoreThan(filter.afterID) });
-    }
-
-    const eventEntities:SubstrateEventEntity[] = await getRepository(SubstrateEventEntity).find({ 
-      relations: ["extrinsic"],
-      where,
-      order: {
-        id: 'ASC'
-      },
-      take: size
-    })
-    return eventEntities.map(e => this.convert(e));
-  }
-
-  private convert(qee: SubstrateEventEntity): SubstrateEvent {
-    return qee as SubstrateEvent;
-  }
-  
-}

query-node/index-builder/src/processor/GraphQLSource.ts

@@ -1,89 +0,0 @@
-import { IProcessorSource, EventFilter } from '.';
-import { SubstrateEvent } from '../model';
-import { ProcessorOptions } from '../node';
-import { GraphQLClient } from 'graphql-request';
-import { Inject } from 'typedi';
-import Debug from 'debug';
-import { EventEmitter } from 'events';
-
-const debug = Debug('index-builder:processor');
-
-const GET_EVENTS_AFTER_QUERY = `
-query GetEventsAfterID( $afterID: ID, $names: [String!]!, $fromBlock: Int, $toBlock: Int, $size: Int) {
-  substrateEventsAfter(where: { name_in: $names, blockNumber_gte: $fromBlock, blockNumber_lte: $toBlock }, afterID: $afterID, limit: $size) {
-    id
-    name 
-    method
-    params {
-      name
-      type
-      value
-    }
-    index 
-    blockNumber
-    extrinsic {
-      method
-      section
-      versionInfo
-      signer
-      args
-      signature
-      hash
-      tip
-    }
-  }
-}
-`
-
-// to be replaced with a ws subsription 
-const GET_INDEXER_HEAD = `
-query {
-  indexerStatus {
-    head
-  }
-}
-`
-
-
-export class GraphQLSource extends EventEmitter implements IProcessorSource {
-  private graphClient: GraphQLClient;
-
-  constructor(@Inject('ProcessorOptions') protected options: ProcessorOptions) {
-    super();
-    const _endpoint = options.indexerEndpointURL || process.env.INDEXER_ENDPOINT_URL;
-    if (!_endpoint) {
-      throw new Error(`Indexer endpoint is not provided`);
-    }
-    debug(`Using Indexer API endpoint ${_endpoint}`);
-    this.graphClient = new GraphQLClient(_endpoint);
-  }
-  
-  // TODO: implement
-  subscribe(events: string[]): Promise<void> {
-    throw new Error("Method not implemented.");
-  }
-
-
-  async indexerHead(): Promise<number> {
-    const status = await this.graphClient.request<{ indexerStatus: { head: number } }>(GET_INDEXER_HEAD);
-    return status.indexerStatus.head
-  }
-
-  async nextBatch(filter: EventFilter, size: number): Promise<SubstrateEvent[]> {
-    debug(`Filter: ${JSON.stringify(filter, null, 2)}`)
-    const data = await this.graphClient.request<{ substrateEventsAfter: SubstrateEvent[] }>(GET_EVENTS_AFTER_QUERY, 
-      { size, 
-        names: filter.names, 
-        afterID: filter.afterID,
-        fromBlock: filter.fromBlock,
-        toBlock: filter.toBlock
-      });
-    debug(`Fetched ${data.substrateEventsAfter.length} events`);
-    debug(`Events: ${JSON.stringify(data, null, 2)} events`);
-    return data.substrateEventsAfter;
-
-  }
-
-
-  
-}

query-node/index-builder/src/processor/HandlerLookupService.ts

@@ -1,41 +0,0 @@
-import { Inject, Service } from 'typedi';
-import { QueryEventProcessingPack, EventHandlerFunc } from '../model';
-import { ProcessorOptions } from '../node';
-import Debug from 'debug';
-// Get the even name from the mapper name. By default, we assume the handlers
-// are of the form <section>_<method> which is translated into the canonical event name of the 
-// form <section>.<method>
-const DEFAULT_MAPPINGS_TRANSLATOR = (m: string) => `${m.split('_')[0]}.${m.split('_')[1]}`;
-
-const debug = Debug('index-builder:processor');
-
-@Service()
-export class HandlerLookupService {
-  private _events: string[] = [];
-  private _event2mapping: { [e: string]: EventHandlerFunc } = {};
-  private _processingPack: QueryEventProcessingPack;
-  private _translator = DEFAULT_MAPPINGS_TRANSLATOR;
-  
-  constructor(@Inject('ProcessorOptions') protected options: ProcessorOptions) {
-    this._processingPack = this.options.processingPack;
-    this._translator = this.options.mappingToEventTranslator || DEFAULT_MAPPINGS_TRANSLATOR;
-    this._events = Object.keys(this._processingPack).map((mapping:string) => this._translator(mapping));
-    Object.keys(this._processingPack).map((m) => {
-      this._event2mapping[this._translator(m)] = this._processingPack[m];
-    })
-
-    debug(`The following events will be processed: ${JSON.stringify(this._events, null, 2)}`);
-
-  }
-
-  eventsToHandle(): string[] {
-    return this._events;
-  }
-
-  lookupHandler(eventName: string): EventHandlerFunc {
-    return this._event2mapping[eventName]
-  }
-
-
-
-}

query-node/index-builder/src/processor/IProcessorSource.ts

@@ -1,25 +0,0 @@
-import { SubstrateEvent } from '../model';
-import { EventEmitter } from 'typeorm/platform/PlatformTools';
-
-
-/**
- * Filter for fetching events
- *  - strictly after event with IDs > afterID (if present)
- *  - with name in names
- *  - block between fromBlock and toBlock (inclusive)
- */
-export interface EventFilter {
-  afterID?: string
-  names: string[]
-  fromBlock: number
-  toBlock: number 
-}
-
-export interface IProcessorSource extends EventEmitter {
-  
-  nextBatch(filter: EventFilter, limit: number): Promise<SubstrateEvent[]>;
-
-  indexerHead(): Promise<number>;
-
-  subscribe(events: string[]): Promise<void>;
-}

query-node/index-builder/src/processor/MappingsProcessor.ts

@@ -1,161 +0,0 @@
-import { makeDatabaseManager, SubstrateEvent } from '..'
-import Debug from 'debug'
-import { doInTransaction } from '../db/helper'
-import { ProcessorOptions } from '../node'
-import { Inject, Service } from 'typedi'
-import { IProcessorSource, GraphQLSource, HandlerLookupService } from '.'
-import { QueryRunner } from 'typeorm'
-import { logError } from '../utils/errors'
-import { IProcessorState, ProcessorStateHandler } from './ProcessorStateHandler'
-import { EventFilter } from './IProcessorSource'
-import { waitFor } from '../utils/wait-for'
-import { formatEventId } from '../model'
-import {
-  BATCH_SIZE,
-  BLOCK_WINDOW,
-  DEFAULT_PROCESSOR_NAME,
-  MINIMUM_BLOCKS_AHEAD,
-  PROCESSOR_POLL_INTERVAL,
-} from './processor-consts'
-
-const debug = Debug('index-builder:processor')
-
-@Service('MappingsProcessor')
-export class MappingsProcessor {
-  //private _lastEventIndex: string | undefined;
-  private state!: IProcessorState
-  private _started = false
-  private currentFilter!: EventFilter
-  private indexerHead!: number // current indexer head we are aware of
-
-  private _name = DEFAULT_PROCESSOR_NAME
-
-  constructor(
-    @Inject('ProcessorOptions') protected options: ProcessorOptions,
-    @Inject('ProcessorSource')
-    protected eventsSource: IProcessorSource = new GraphQLSource(options),
-    @Inject() protected handlerLookup = new HandlerLookupService(options),
-    @Inject('ProcessorStateHandler')
-    protected stateHandler = new ProcessorStateHandler(
-      options.name || DEFAULT_PROCESSOR_NAME
-    )
-  ) {
-    // TODO: uncomment this block when eventSource will emit
-    // this.eventsSource.on('NewIndexerHead', (h: number) => {
-    //   debug(`New Indexer Head: ${h}`)
-    //   this.indexerHead = h
-    // });
-    // For now, simply update indexerHead regularly
-    setInterval(() => {
-      this.eventsSource
-        .indexerHead()
-        .then((h) => {
-          debug(`New indexer head: ${h}`)
-          this.indexerHead = h
-        })
-        .catch((e) => debug(`Error fetching new indexer head: ${logError(e)}`))
-    }, PROCESSOR_POLL_INTERVAL) // every minute
-  }
-
-  async start(): Promise<void> {
-    debug('Spawned the processor')
-
-    this.state = await this.stateHandler.init(this.options.atBlock)
-    this.indexerHead = await this.eventsSource.indexerHead()
-
-    this.currentFilter = {
-      afterID: this.state.lastProcessedEvent,
-      fromBlock: this.state.lastScannedBlock,
-      toBlock: Math.min(
-        this.state.lastScannedBlock + BLOCK_WINDOW,
-        this.indexerHead
-      ),
-      names: this.handlerLookup.eventsToHandle(),
-    }
-
-    this._started = true
-    await waitFor(() => {
-      debug(`Waiting for the indexer head to be initialized`)
-      return this.indexerHead >= 0
-    })
-    await this.processingLoop()
-  }
-
-  public stop(): void {
-    this._started = false
-  }
-
-  private async nextFilter(): Promise<EventFilter> {
-    debug(
-      `Indexer Head: ${this.indexerHead} Last Scanned Block: ${this.state.lastScannedBlock}`
-    )
-
-    // here we should eventually listen only to the events
-    // For now, we simply wait until the indexer go for at least {MINIMUM_BLOCKS_AHEAD}
-    // blocks ahead of the last scanned block
-    await waitFor(
-      () =>
-        this.indexerHead - this.state.lastScannedBlock > MINIMUM_BLOCKS_AHEAD,
-      () => !this._started
-    )
-
-    this.currentFilter.fromBlock = this.state.lastScannedBlock
-    this.currentFilter.toBlock = Math.min(
-      this.currentFilter.fromBlock + BLOCK_WINDOW,
-      this.indexerHead
-    )
-    this.currentFilter.afterID = this.state.lastProcessedEvent
-
-    //debug(`Next filter: ${JSON.stringify(this.currentFilter, null, 2)}`);
-    return this.currentFilter
-  }
-
-  // Long running loop where events are fetched and the mappings are applied
-  async processingLoop(): Promise<void> {
-    while (this._started) {
-      try {
-        const nextFilter = await this.nextFilter()
-
-        const events = await this.eventsSource.nextBatch(nextFilter, BATCH_SIZE)
-        debug(`Processing new batch of events of size: ${events.length}`)
-        if (events.length > 0) {
-          await this.processEventBlock(events)
-        } else {
-          // If there is nothing to process, wait and update the indexer head
-          // TODO: we should really subsribe to new indexer heads here and update accordingly
-          this.state.lastScannedBlock = this.currentFilter.toBlock
-          // if we haven't found anything matching just take the genesis
-          this.state.lastProcessedEvent =
-            this.state.lastProcessedEvent || formatEventId(0, 0)
-          await this.stateHandler.persist(this.state)
-        }
-      } catch (e) {
-        console.error(`Stopping the proccessor due to errors: ${logError(e)}`)
-        this.stop()
-        throw new Error(e)
-      }
-    }
-    debug(`The processor has been stopped`)
-  }
-
-  async processEventBlock(query_event_block: SubstrateEvent[]): Promise<void> {
-    for (const event of query_event_block) {
-      await doInTransaction(async (queryRunner: QueryRunner) => {
-        debug(`Processing event ${event.name}, 
-          id: ${event.id}`)
-
-        debug(`JSON: ${JSON.stringify(event, null, 2)}`)
-
-        const handler = this.handlerLookup.lookupHandler(event.name)
-        await handler(makeDatabaseManager(queryRunner.manager), event)
-
-        this.state.lastProcessedEvent = event.id
-        this.state.lastScannedBlock = event.blockNumber
-
-        await this.stateHandler.persist(this.state)
-
-        debug(`Event ${event.id} done`)
-      })
-    }
-  }
-}

query-node/index-builder/src/processor/ProcessorStateHandler.ts

@@ -1,63 +0,0 @@
-import { loadState } from '../db/dal';
-import Debug from 'debug';
-import assert = require('assert');
-import { ProcessedEventsLogEntity } from '../entities';
-import { getRepository } from 'typeorm';
-import { Service } from 'typedi';
-
-const debug = Debug('index-builder:processor-state-handler');
-
-export interface IProcessorState {
-  lastProcessedEvent: string | undefined
-  lastScannedBlock: number 
-}
-
-export interface IProcessorStateHandler {
-  persist(state: IProcessorState): Promise<void>;
-  init(fromBlock?: number): Promise<IProcessorState>;
-}
-
-@Service('ProcessorStateHander')
-export class ProcessorStateHandler implements IProcessorStateHandler {
-  
-  constructor(public readonly processorID = 'hydra-processor') {
-
-  }
-
-  async persist(state: IProcessorState): Promise<void> {
-    assert (state.lastProcessedEvent, 'Cannot persist undefined event ID')
-    const processed = new ProcessedEventsLogEntity();
-    processed.processor = this.processorID;
-    processed.eventId = state.lastProcessedEvent;
-    processed.lastScannedBlock = state.lastScannedBlock;
-    
-    await getRepository('ProcessedEventsLogEntity').save(processed);
-  }
-  
-  async init(atBlock = 0): Promise<IProcessorState> {
-    
-    if (atBlock > 0) {
-      debug(`Got block height hint: ${atBlock}`);
-    }
-    
-    const lastState = await loadState(this.processorID);
-
-    if (lastState) {
-      debug(`Found the most recent processed event ${lastState.eventId}`);
-      if (atBlock > lastState.lastScannedBlock) {
-        debug(
-          `WARNING! Existing processed history detected on the database!
-          Last processed event id ${lastState.eventId}. The indexer 
-          will continue from block ${lastState.lastScannedBlock} and ignore the block height hint.`
-        );
-      }
-      return { lastProcessedEvent: lastState.eventId, lastScannedBlock: lastState.lastScannedBlock}
-    }
-
-    return {
-      lastScannedBlock: atBlock,
-      lastProcessedEvent: undefined
-    } 
-    
-  }
-}

query-node/index-builder/src/processor/index.ts

@@ -1,5 +0,0 @@
-export * from './DBSource'
-export * from './GraphQLSource'
-export * from './IProcessorSource'
-export * from './MappingsProcessor'
-export * from './HandlerLookupService'

query-node/index-builder/src/processor/processor-consts.ts

@@ -1,18 +0,0 @@
-import { numberEnv } from '../utils/env-flags'
-
-export const DEFAULT_PROCESSOR_NAME = 'hydra'
-
-// Number of blocks to scan in a single request to the indexer
-export const BLOCK_WINDOW = 100000
-
-// Maximal number of events to process in a single transaction
-export const BATCH_SIZE = numberEnv('PROCESSOR_BATCH_SIZE') || 10
-
-// Interval at which the processor pulls new blocks from the database
-// The interval is reasonably large by default. The trade-off is the latency
-// between the updates and the load to the database
-export const PROCESSOR_POLL_INTERVAL =
-  numberEnv('PROCESSOR_POLL_INTERVAL') || 60 * 1000 // 10 seconds
-
-// Wait for the indexer head block to be ahead for at least that number of blocsk
-export const MINIMUM_BLOCKS_AHEAD = 2

query-node/index-builder/src/redis/RedisClientFactory.ts

@@ -1,47 +0,0 @@
-import { Service } from 'typedi'
-import { RedisOptions } from 'ioredis'
-import * as IORedis from 'ioredis'
-import Debug from 'debug'
-import { logError } from '../utils/errors'
-const debug = Debug('index-builder:redis-factory')
-
-@Service('RedisClientFactory')
-export class RedisClientFactory {
-  private clients: IORedis.Redis[] = []
-  private factoryMetod: () => IORedis.Redis
-
-  public constructor(redisURI?: string, options?: RedisOptions) {
-    if (options) {
-      this.factoryMetod = () => new IORedis(options)
-      debug(`Using RedisOptions`)
-      return
-    }
-
-    const uri = redisURI || process.env.REDIS_URI
-    if (uri) {
-      this.factoryMetod = () => new IORedis(uri)
-      debug(`Using ${uri} for Redis clients`)
-      return
-    } else {
-      throw new Error(`Redis URL is not provided`)
-    }
-  }
-
-  getClient(): IORedis.Redis {
-    const client = this.factoryMetod()
-    this.clients.push(client)
-    return client
-  }
-
-  stop(): void {
-    for (const client of this.clients) {
-      if (client) {
-        try {
-          client.disconnect()
-        } catch (e) {
-          debug(`Failed to disconnect redis client: ${logError(e)}`)
-        }
-      }
-    }
-  }
-}

query-node/index-builder/src/redis/index.ts

@@ -1 +0,0 @@
-export * from './RedisClientFactory';

query-node/index-builder/src/substrate/ISubstrateService.ts

@@ -1,34 +0,0 @@
-import {
-  Hash,
-  Header,
-  BlockNumber,
-  EventRecord,
-  SignedBlock,
-} from '@polkadot/types/interfaces'
-import { Callback, Codec } from '@polkadot/types/types'
-import { UnsubscribePromise } from '@polkadot/api/types'
-import { ApiPromise } from '@polkadot/api'
-
-import { SubstrateService } from './SubstrateService'
-
-/**
- * @description ...
- */
-export interface ISubstrateService {
-  getFinalizedHead(): Promise<Hash>
-  getHeader(hash?: Hash | Uint8Array | string): Promise<Header>
-  subscribeNewHeads(v: Callback<Header>): UnsubscribePromise
-  getBlockHash(
-    blockNumber?: BlockNumber | Uint8Array | number | string
-  ): Promise<Hash>
-  getBlock(hash?: Hash | Uint8Array | string): Promise<SignedBlock>
-  // Cut down from at: (hash: Hash | Uint8Array | string, ...args: Parameters<F>) => PromiseOrObs<ApiType, ObsInnerType<ReturnType<F>>>;
-  eventsAt(hash: Hash | Uint8Array | string): Promise<EventRecord[] & Codec>
-  //eventsRange()
-  //events()
-  stop(): Promise<void>
-}
-
-export function makeSubstrateService(api: ApiPromise): ISubstrateService {
-  return new SubstrateService(api)
-}

query-node/index-builder/src/substrate/SubstrateService.ts

@@ -1,108 +0,0 @@
-import {
-  Hash,
-  Header,
-  BlockNumber,
-  EventRecord,
-  SignedBlock,
-} from '@polkadot/types/interfaces'
-import { Callback, Codec } from '@polkadot/types/types'
-import { u32 } from '@polkadot/types/primitive'
-import { ApiPromise } from '@polkadot/api'
-
-import { ISubstrateService } from '.'
-import { UnsubscribePromise } from '@polkadot/api/types'
-import Debug from 'debug'
-import { retryWithTimeout } from '../utils/wait-for'
-import { logError } from '../utils/errors'
-import {
-  SUBSTRATE_API_CALL_RETRIES,
-  SUBSTRATE_API_TIMEOUT,
-} from '../indexer/indexer-consts'
-import { Inject, Service } from 'typedi'
-
-const debug = Debug('index-builder:producer')
-
-@Service('SubstrateService')
-export class SubstrateService implements ISubstrateService {
-  // Enough large number
-  private readonly _versionReset = 99999999
-
-  // Store runtime spec version
-  private _specVersion: u32
-
-  constructor(@Inject('ApiPromise') protected api: ApiPromise) {
-    this._specVersion = api.createType('u32', this._versionReset)
-  }
-
-  async getHeader(hash: Hash | Uint8Array | string): Promise<Header> {
-    return this._retryWithBackoff(
-      () => this.api.rpc.chain.getHeader(hash),
-      `Getting block header of ${JSON.stringify(hash)}`
-    )
-  }
-
-  getFinalizedHead(): Promise<Hash> {
-    return this._retryWithBackoff(
-      () => this.api.rpc.chain.getFinalizedHead(),
-      `Getting finalized head`
-    )
-  }
-
-  subscribeNewHeads(v: Callback<Header>): UnsubscribePromise {
-    return this._retryWithBackoff(
-      () => this.api.rpc.chain.subscribeNewHeads(v),
-      `Subscribing to new heads`
-    )
-  }
-
-  async getBlockHash(
-    blockNumber?: BlockNumber | Uint8Array | number | string
-  ): Promise<Hash> {
-    debug(`Fetching block hash: BlockNumber: ${JSON.stringify(blockNumber)}`)
-    return this._retryWithBackoff(
-      () => this.api.rpc.chain.getBlockHash(blockNumber),
-      `Getting block hash of ${JSON.stringify(blockNumber)}`
-    )
-  }
-
-  async getBlock(hash: Hash | Uint8Array | string): Promise<SignedBlock> {
-    debug(`Fething block: BlockHash: ${JSON.stringify(hash)}`)
-    return this._retryWithBackoff(
-      () => this.api.rpc.chain.getBlock(hash),
-      `Getting block at ${JSON.stringify(hash)}`
-    )
-  }
-
-  async eventsAt(
-    hash: Hash | Uint8Array | string
-  ): Promise<EventRecord[] & Codec> {
-    debug(`Fething events. BlockHash:  ${JSON.stringify(hash)}`)
-    return this._retryWithBackoff(
-      () => this.api.query.system.events.at(hash),
-      `Fetching events at ${JSON.stringify(hash)}`
-    )
-  }
-
-  private async _retryWithBackoff<T>(
-    promiseFn: () => Promise<T>,
-    functionName: string
-  ): Promise<T> {
-    try {
-      return await retryWithTimeout(
-        promiseFn,
-        SUBSTRATE_API_TIMEOUT,
-        SUBSTRATE_API_CALL_RETRIES
-      )
-    } catch (e) {
-      throw new Error(
-        `Substrated API call ${functionName} failed. Error: ${logError(e)}`
-      )
-    }
-  }
-
-  async stop(): Promise<void> {
-    if (this.api.isReady) {
-      this.api.disconnect()
-    }
-  }
-}

query-node/index-builder/src/substrate/index.ts

@@ -1,2 +0,0 @@
-export * from './ISubstrateService';
-export * from './SubstrateService';

query-node/index-builder/src/substrate/typeRegistry.ts

@@ -1,9 +0,0 @@
-
-// Copyright 2017-2020 @polkadot/react-api authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-import { TypeRegistry } from '@polkadot/types';
-
-const registry = new TypeRegistry();
-
-export default registry;

query-node/index-builder/src/substrate/typesSpec.ts

@@ -1,9 +0,0 @@
-// TODO: add more typeSpecs for well-known chains?
-export default {
-  
-  'node-template': {
-    Address: 'AccountId',
-    LookupSource: 'AccountId'
-  },
-  
-};

query-node/index-builder/src/utils/BackOffStategy.ts

@@ -1,56 +0,0 @@
-import { numberEnv } from './env-flags';
-
-export interface BackoffStrategy {
-  /**
-   * reset the backoff time to it's initial value
-   */
-  resetBackoffTime(): void;
-  /**
-   * Get current backoff time
-   */
-  getBackOffMs(): number;
-  /**
-   * Indicate that a failure has occured and the backoff time should be increased
-   */
-  registerFailure(): void;
-}
-
-const INITIAL_BACKOFF_TIME:number = numberEnv('DEFAULT_BACKOFF_TIME_MS') || 250;
-const MAX_BACKOFF_TIME: number = numberEnv('MAX_BACKOFF_TIME_MS') || 1000 * 60 * 5; // 5 mins
-
-export class ConstantBackOffStrategy implements BackoffStrategy {
-  constructor (public readonly waitTime: number) {
-
-  }
-
-  public resetBackoffTime(): void {
-    // NOOP
-  }
-
-  public registerFailure(): void {
-    // NOOP
-  }
-
-  public getBackOffMs(): number {
-    return this.waitTime;
-  }
-
-}
-
-export class ExponentialBackOffStrategy implements BackoffStrategy {
-  
-  private backoffTime = INITIAL_BACKOFF_TIME;
-  public maxBackOffTime = MAX_BACKOFF_TIME;
-
-  public resetBackoffTime(): void {
-    this.backoffTime = INITIAL_BACKOFF_TIME;
-  }
-
-  public registerFailure(): void {
-    this.backoffTime = Math.min(this.maxBackOffTime, Math.ceil(this.backoffTime * 1.2));
-  }
-
-  public getBackOffMs(): number {
-    return this.backoffTime;
-  }
-}

query-node/index-builder/src/utils/env-flags.ts

@@ -1,19 +0,0 @@
-import Debug from 'debug';
-const debug = Debug('index-builder:processor');
-
-// get a number from an environment variable 
-export function numberEnv(envVariable: string): number | undefined {
-  if (!process.env[envVariable]) {
-    return undefined;
-  }
-
-  let value = undefined;
-  try {
-    value = Number.parseInt(process.env[envVariable] || '');
-    debug(`Using ${envVariable}: ${value}`);
-  } catch (e) {
-    console.error(`Cannot parse env ${envVariable} value ${process.env[envVariable] || ''} into a number`);
-  }
-  
-  return value;
-}

query-node/index-builder/src/utils/errors.ts

@@ -1,15 +0,0 @@
-/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
-
-/**
- * An utility method to extract info from caught objects in try {} catch (e)
- * 
- * @param e any error variable
- */
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export function logError(e: any): string {
-  let details = '';
-  if (e instanceof Error) {
-    details = `name: ${e.name}, message: ${e.message}, stack: ${e.stack || ''}`
-  }
-  return `${JSON.stringify(e, null, 2)} ${details}`;
-}

query-node/index-builder/src/utils/stringify.ts

@@ -1,7 +0,0 @@
-export function stringifyWithTs(s: Record<string, unknown>): string {
-  return JSON.stringify({ ...s, ts: Date.now() })
-}
-
-export function withTs(s: Record<string, unknown>): Record<string, unknown> {
-  return { ...s, ts: Date.now() };
-}

query-node/index-builder/src/utils/wait-for.ts

@@ -1,131 +0,0 @@
-import Debug from 'debug';
-import { ExponentialBackOffStrategy, BackoffStrategy } from './BackOffStategy';
-import { logError } from './errors';
-
-export const POLL_INTERVAL_MS = 100;
-export const DEFAULT_FETCH_TIMEOUT_MS = 500;
-
-
-const debug = Debug('index-builder:util');
-
-/**
- * Resolves when an async call resolves to true, and rejects if any call rejects.
- * 
- * 
- * @param condition Async condition to be satisfied
- * @param exit Force exit handle
- * @param pollInterval 
- */
-export async function waitForAsync(condition: () => Promise<boolean>, exit?: () => boolean, pollInterval = POLL_INTERVAL_MS): Promise<void> {
-  let cond = await condition(); 
-  while (!cond) {
-    await sleep(pollInterval);
-    cond = await condition();
-    if (exit && exit()) {
-      return;
-    }
-  }
-}
-
-/**
- * Returns a promise which resolves when a certain condition is met
- * 
- * @param condition The promise resolves when `condition()` returns true
- * @param exit (optional) The promise rejects if exit() returns true
- * @param pollInterval (optimal) The sleep interval
- */
-export async function waitFor(condition: () => boolean, exit?: () => boolean, pollInterval = POLL_INTERVAL_MS): Promise<void> {
-  return new Promise<void>((resolve, reject) => {
-    let timeout: NodeJS.Timeout | undefined = undefined;   
-    const checkCondition = () => {
-      if (exit && exit()) {
-        if (timeout) {
-          clearTimeout(timeout);
-        }
-        reject("The exit condition has been triggered")
-        return;
-      }
-          
-      if (condition()) {
-        if (timeout) {
-          clearTimeout(timeout);
-        }
-        resolve()
-      } else {
-        // Type 'number' is not assignable to type 'Timeout | undefined'. !!?
-        // @ts-ignore
-        timeout = setTimeout(checkCondition, pollInterval);
-      }    
-
-    }
-    checkCondition();
-  });
-}
-
-/**
- * Sleep for a given amount of milliseconds
- * 
- * @param time For how long to sleep
- */
-export async function sleep(timeMS: number): Promise<void> {
-  await new Promise((resolve)=>setTimeout(() => {
-    resolve();
-  }, timeMS));
-}
-
-/*
- * Await for the promise or reject after a timeout
- */
-export async function withTimeout<T>(promiseFn: Promise<T>, rejectMsg?: string, timeoutMS?: number): Promise<T> {
-    // Create a promise that rejects in <ms> milliseconds
-  const timeoutPromise = new Promise((resolve, reject) => {
-    const id = setTimeout(() => {
-      clearTimeout(id);
-      reject(`${rejectMsg || 'Execution time-out'}`);
-    }, timeoutMS || DEFAULT_FETCH_TIMEOUT_MS)
-  });
-
-    // Returns a race between our timeout and the passed in promise
-  return Promise.race([
-    promiseFn,
-    timeoutPromise
-  ]).then(x => x as T);
-}
-
-/**
- * Tries to resolve the given promise multiple times; gives up after the given number of retries.
- * If the number of retries is `-1` (default), then it retries ad infinitum.
- * 
- * @param promiseFn Promise to resolve
- * @param retries Number of retries or -1 for infinite number of retries;
- */
-export async function retry<T>(promiseFn: () => Promise<T>, retries = -1, backoff: BackoffStrategy = new ExponentialBackOffStrategy()): Promise<T> {
-  let result: T | undefined = undefined;
-  let _ret = retries;
-  let error: Error | undefined = undefined;
-
-  while (result === undefined && _ret !== 0) {
-    try {
-      result = await promiseFn();
-      backoff.resetBackoffTime();
-      return result;
-    } catch (e) {
-      error = new Error(e);
-      await sleep(backoff.getBackOffMs());
-      debug(`An error occured: ${JSON.stringify(e, null, 2)}. Retrying in ${backoff.getBackOffMs()}ms. 
-            Number of retries left: ${_ret}`);
-      _ret = _ret > 0 ? _ret -1 : _ret;
-      backoff.registerFailure();
-    }
-  }
-  backoff.resetBackoffTime();
-  throw new Error(`Failed to resolve promise after ${retries}. Last error: ${logError(error)}`);
-}
-
-export async function retryWithTimeout<T>(promiseFn: () => Promise<T>, timeout: number, retries = -1, backoff: BackoffStrategy = new ExponentialBackOffStrategy()): Promise<T> {
-  return await retry (() => {
-    const prom = promiseFn();
-    return withTimeout(prom, `Timed out: ${timeout} ms`, timeout)
-  }, retries, backoff)
-   
-}

query-node/index-builder/test/.env

@@ -1,30 +0,0 @@
-TYPEORM_CONNECTION=postgres
-TYPEORM_HOST=localhost
-TYPEORM_USERNAME=postgres
-TYPEORM_PASSWORD=postgres
-TYPEORM_DATABASE=integration-tests
-TYPEORM_PORT=5432
-TYPEORM_SYNCHRONIZE=false
-TYPEORM_DROP_SCHEMA=true
-TYPEORM_LOGGING=true
-TYPEORM_ENTITIES=./test/models/**/*.model.ts,./src/entities/*Entity.ts
-REDIS_URI=redis://localhost:6379/1
-DB_NAME=integration-tests
-DB_USER=postgres
-DB_PASS=postgres
-DB_HOST=localhost
-DB_PORT=5432
-PGUSER=postgres
-PGPASSWORD=postgres
-PGHOST=localhost
-PGPORT=5432
-
-# DEFUALT GraphQL server HOST and PORT 
-GRAPHQL_SERVER_PORT=4000
-GRAPHQL_SERVER_HOST=localhost
-WARTHOG_APP_PORT=4000
-WARTHOG_APP_HOST=localhost
-
-WS_PROVIDER_URI=ws://localhost:9944
-
-DEBUG=*

query-node/index-builder/test/db/Helper.test.ts

@@ -1,31 +0,0 @@
-import { expect } from 'chai';
-import { DeepPartial } from 'typeorm';
-
-import { fillRequiredWarthogFields } from '../../src/db/helper';
-
-describe('IndexBuilder::DatabaseHelper', () => {
-  it('should fill warthog required fields', () => {
-    class Member {
-      id!: string;
-      createdById!: string;
-      version!: number;
-      constructor(init?: Partial<Member>) {
-        Object.assign(this, init);
-      }
-    }
-
-    let m: DeepPartial<Member> = new Member();
-    m = fillRequiredWarthogFields(m);
-
-    expect(m).to.haveOwnPropertyDescriptor('id', 'should have id field with value');
-    expect(m).to.haveOwnPropertyDescriptor('createdById', 'should have id field with value');
-    expect(m).to.haveOwnPropertyDescriptor('version', 'should have id field with value');
-
-    const { 0: id, 1: version } = ['asd123', 12345];
-    let m2: DeepPartial<Member> = new Member({ id, version });
-    m2 = fillRequiredWarthogFields(m2);
-
-    expect(m2.id).to.equal(id, `should have value: ${id}`);
-    expect(m2.version).to.equal(version, `should have value: ${version}`);
-  });
-});

query-node/index-builder/test/fixtures/mock-factory.ts

@@ -1,46 +0,0 @@
-import { QueryEventBlock, IQueryEvent } from "../../src";
-import { Phase, Event, EventRecord } from '@polkadot/types/interfaces';
-import { BlockPayload } from "../../src/model";
-import { withTs } from "../../src/utils/stringify";
-
-export function blockPayload(height: number): BlockPayload {
-  return withTs({
-    height
-  }) as unknown as BlockPayload
-}
-
-export function queryEventBlock(block = 0): QueryEventBlock {
-  const gen = queryEvent(block);
-  return {
-    block_number: block,
-    query_events: [gen.next().value as IQueryEvent, 
-      gen.next().value as IQueryEvent, 
-      gen.next().value as IQueryEvent]
-  }
-}
-
-export function * queryEvent(block = 0): Generator<IQueryEvent, void, IQueryEvent> {
-  // TODO: use faker
-  let i = 0;
-  do {  
-    yield {
-          eventRecord: {
-            phase: {
-              toJSON: () => { return {} }
-            } as unknown as Phase,
-            event: {
-              method: 'fake.method',
-              section: 'fake.section',
-              data: []
-            } as unknown as Event
-          } as unknown as EventRecord,
-          blockNumber: block,
-          indexInBlock: i,
-          eventName: 'fake.event',
-          eventMethod: 'fake.method',
-          eventParams: {},
-          index: i
-    }
-    i++;
-  } while (i < 100)
-}

query-node/index-builder/test/integration/mocha.opts

@@ -1,6 +0,0 @@
---file ./e2e-db/setup-db.ts
---require ts-node/register
---watch-extensions ts
---recursive
---reporter spec
---timeout 5000

query-node/index-builder/test/integration/query-node.test.ts

@@ -1,29 +0,0 @@
-import { expect } from 'chai'
-import Container from 'typedi'
-import { QueryNode, QueryNodeState } from '../../src'
-import { sleep } from '../../src/utils/wait-for'
-
-describe('QueryNode', () => {
-  before(async () => {
-    await QueryNode.create({
-      wsProviderURI: process.env.WS_PROVIDER_URI || '',
-      redisURI: process.env.REDIS_URI,
-    })
-  })
-
-  it('Should initialize the indexer', async () => {
-    const node = Container.get<QueryNode>('QueryNode')
-
-    expect(node.api, 'Api should be initialized').to.not.be.undefined
-    expect(node.indexBuilder, 'IndexBuilder should be initialized').to.not.be
-      .undefined
-
-    await Promise.race([node.start(), sleep(100)])
-
-    expect(node.state).to.be.eq(QueryNodeState.STARTED, 'Should be started')
-
-    await node.stop()
-
-    expect(node.state).to.be.eq(QueryNodeState.STOPPED, 'Should be stopped')
-  })
-})

query-node/index-builder/test/integration/setup-db.ts

@@ -1,49 +0,0 @@
-import * as dotenv from 'dotenv'
-// we should set env variables before all other imports to avoid config errors or warthog caused by DI
-dotenv.config({ path: './test/.env' })
-import { createDb, dropDb } from '../utils'
-import { QueryNodeManager } from '../../src'
-import { createDBConnection } from '../../src/db/helper'
-import * as Redis from 'ioredis'
-
-export async function resetDb(): Promise<void> {
-  try {
-    await dropDb()
-  } catch (e) {
-    // ignore
-  }
-  try {
-    await setupDb()
-  } catch (e) {
-    //ignore;
-  }
-}
-
-export async function setupDb(): Promise<void> {
-  await createDb()
-  await QueryNodeManager.migrate()
-}
-
-export async function clearRedis(): Promise<void> {
-  const redisURL = process.env.REDIS_URI
-  if (!redisURL) {
-    throw new Error(`Redis URL is not provided`)
-  }
-  const redis = new Redis(redisURL)
-  await redis.flushall()
-  await redis.quit()
-}
-
-beforeEach(async () => {
-  await setupDb()
-  await createDBConnection()
-})
-
-afterEach(async () => {
-  try {
-    await QueryNodeManager.cleanUp()
-    await dropDb()
-  } catch (e) {
-    console.error(e)
-  }
-})

query-node/index-builder/test/integration/status-service.test.ts

@@ -1,116 +0,0 @@
-import * as dotenv from 'dotenv'
-// we should set env variables before all other imports to
-// avoid config errors or warthog caused by DI
-dotenv.config({ path: './test/.env' })
-import { expect } from 'chai'
-import { describe } from 'mocha'
-import { IndexBuilder, QueryEventBlock, QueryNodeManager } from '../../src'
-import Container from 'typedi'
-import { IndexerStatusService, IBlockProducer } from '../../src/indexer'
-import { sleep, waitForAsync } from '../../src/utils/wait-for'
-import Debug from 'debug'
-import { RedisRelayer } from '../../src/indexer/RedisRelayer'
-import { RedisClientFactory } from '../../src/redis/RedisClientFactory'
-import { blockPayload, queryEventBlock } from '../fixtures/mock-factory'
-import { EVENT_TOTAL } from '../../src/indexer/redis-keys'
-import { clearRedis, resetDb } from './setup-db'
-
-const debug = Debug('index-builder:status-service-test')
-const FINAL_CHAIN_HEIGHT = 7
-
-class MockBlockProducer implements IBlockProducer<QueryEventBlock> {
-  private height = 0
-
-  async fetchBlock(height: number): Promise<QueryEventBlock> {
-    debug(`Fetched mock block at height ${height}`)
-    await sleep(100)
-    return queryEventBlock(height)
-  }
-
-  async *blockHeights(): AsyncGenerator<number> {
-    // we announce 7 blocks every 5 ms and then die
-    while (this.height <= FINAL_CHAIN_HEIGHT) {
-      yield this.height
-      await sleep(5) //
-      this.height++
-    }
-  }
-
-  async start(height: number): Promise<void> {
-    await sleep(10)
-    debug(`Stated at height ${height}`)
-  }
-
-  async stop(): Promise<void> {
-    await sleep(10)
-    debug('Stopped')
-  }
-}
-
-describe('IndexerStatusService', () => {
-  let indexBuilder: IndexBuilder
-  let statusService: IndexerStatusService
-
-  beforeEach(async () => {
-    await sleep(300)
-    await clearRedis()
-    await resetDb()
-
-    Container.reset()
-    const producer = new MockBlockProducer()
-    Container.set('BlockProducer', producer)
-    Container.set('RedisClientFactory', new RedisClientFactory())
-    statusService = new IndexerStatusService()
-    Container.set('StatusService', statusService)
-    indexBuilder = new IndexBuilder(producer, statusService)
-    Container.set('IndexBuilder', indexBuilder)
-    Container.set('RedisRelayer', new RedisRelayer())
-  })
-
-  afterEach(async () => {
-    console.log('Cleaning up')
-    await QueryNodeManager.cleanUp()
-  })
-
-  it('should properly update indexer heads', async () => {
-    await statusService.onBlockComplete(blockPayload(0))
-    await statusService.onBlockComplete(blockPayload(1))
-    await statusService.onBlockComplete(blockPayload(2))
-    await statusService.onBlockComplete(blockPayload(3))
-    await statusService.onBlockComplete(blockPayload(5))
-    await statusService.onBlockComplete(blockPayload(6))
-    await statusService.onBlockComplete(blockPayload(7))
-
-    let head = await statusService.getIndexerHead()
-    // see MockBlockProducer for the block times
-    expect(head).equals(3, `Block 4 is not processed yet`) // block no 4 is slow, so the indexer head is at height 3
-    await statusService.onBlockComplete(blockPayload(4)) // now wait for block no 4 to be finished
-    head = await statusService.getIndexerHead()
-    expect(head).equals(7, `The indexer should eventually process all blockcs`)
-  })
-
-  it('should count events', async () => {
-    await indexBuilder.start()
-    // wait until all blocks are produced
-    await waitForAsync(
-      async () => {
-        const head = await statusService.getIndexerHead()
-        return head == FINAL_CHAIN_HEIGHT
-      },
-      undefined,
-      300
-    )
-    await sleep(300)
-
-    const redisClient = Container.get<RedisClientFactory>(
-      'RedisClientFactory'
-    ).getClient()
-    const totalEventsVal = (await redisClient.hget(EVENT_TOTAL, 'ALL')) || '0'
-    const totalEvents = Number.parseInt(totalEventsVal)
-    // we start with heigh 0, so FINAL_CHAIN_HEIGHT + 1 blocks in total
-    expect(totalEvents).equals(
-      (FINAL_CHAIN_HEIGHT + 1) * 3,
-      `There are ${FINAL_CHAIN_HEIGHT + 1} blocks with 3 events each`
-    )
-  })
-})

query-node/index-builder/test/mocha.opts

@@ -1,5 +0,0 @@
---require ts-node/register
---watch-extensions ts
---recursive
---reporter spec
---timeout 5000

query-node/index-builder/test/tsconfig.json

@@ -1,17 +0,0 @@
-{
-  "extends": "../tsconfig.json",
-  "compilerOptions": {
-    "noEmit": true,
-    "rootDir": "./..",
-    "strict": true,
-    "experimentalDecorators": true,
-    "typeRoots": [
-      "./node_modules/@types",
-    ],
-    "types": [
-      "node",
-      "mocha"
-    ]
-  },
-  "include": ["./src/**/*.ts", "./test/**/*.ts"]
-}

query-node/index-builder/test/utils.ts

@@ -1,40 +0,0 @@
-/* eslint-disable @typescript-eslint/no-unsafe-member-access */
-/* eslint-disable @typescript-eslint/no-var-requires */
-/* eslint-disable @typescript-eslint/no-unsafe-assignment */
-//import { dropdb, createdb } from 'pgtools';
-import * as util from 'util';
-const pgtools = require('pgtools');
-const dropdb = pgtools.dropdb;
-const createdb = pgtools.createdb;
-
-
-export function getPgConfig(): { [index: string] : unknown } {
-  return {
-    host: process.env.DB_HOST,
-    user: process.env.DB_USERNAME,
-    password: process.env.DB_PASSWORD,
-    port: process.env.DB_PORT
-  };
-}
-
-export async function dropDb(db?: string): Promise<void> {
-  const database = db || process.env.DB_NAME;
-  const drop = util.promisify(dropdb);
-
-  try {
-    await drop(getPgConfig(), database);
-  } catch (e) {
-    console.error(e);
-  }
-}
-
-export async function createDb(db?: string): Promise<void> {
-  const database = db || process.env.DB_NAME;
-  const create = util.promisify(createdb);
-
-  try {
-    await create(getPgConfig(), database);
-  } catch (e) {
-    console.error(e);
-  }
-}

query-node/index-builder/tsconfig.json

@@ -1,18 +0,0 @@
-{
-	"compilerOptions": {
-		"declaration": true,
-		"importHelpers": true,
-		"module": "commonjs",
-		"outDir": "lib",
-		"rootDir": "src",
-		"strict": true,
-		"target": "es2017",
-		"experimentalDecorators": true,
-		"emitDecoratorMetadata": true,
-		"skipLibCheck": true,
-		"sourceMap": true,
-		"inlineSources": false
-	},
-	"include": ["src/**/*"],
-	"exclude": ["node_modules"]
-}

query-node/index-builder/yarn.lock

@@ -1,4491 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
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-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
-    window-size "^0.2.0"
-    y18n "^3.2.1"
-    yargs-parser "^3.2.0"
-
-yn@3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/yn/-/yn-3.1.1.tgz#1e87401a09d767c1d5eab26a6e4c185182d2eb50"
-  integrity sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==

query-node/package.json

@@ -3,7 +3,7 @@
 	"version": "1.0.0",
 	"description": "GraphQL server and Substrate indexer. Generated with ♥ by Hydra-CLI",
 	"scripts": {
-		"build": "(cd index-builder && yarn build) && tsc --build tsconfig.json",
+		"build": "tsc --build tsconfig.json",
 		"test": "echo \"Error: no test specified\" && exit 1",
 		"clean": "rm -rf ./generated",
 		"processor:start": "(cd ./generated/indexer && yarn && DEBUG=${DEBUG} yarn start:processor)",

query-node/run-tests.sh

@@ -16,12 +16,12 @@ function cleanup() {
 
 trap cleanup EXIT
 
+export WS_PROVIDER_ENDPOINT_URI=ws://joystream-node:9944/
+
 yarn build
 yarn db:up
 yarn db:migrate
-WS_PROVIDER_ENDPOINT_URI=ws://joystream-node:9944/ yarn docker:up
+yarn docker:up
 
 # Run tests
 ATTACH_TO_NETWORK=query-node_default ../tests/network-tests/run-tests.sh content-directory
-
-