feat: Extend collection of usage metrics during license renewal (no-c…

…hangelog) (n8n-io#8369)

Co-authored-by: Iván Ovejero <ivov.src@gmail.com>

packages/cli/src/License.ts

@@ -12,12 +12,12 @@ import {
 	UNLIMITED_LICENSE_QUOTA,
 } from './constants';
 import { SettingsRepository } from '@db/repositories/settings.repository';
-import { WorkflowRepository } from '@db/repositories/workflow.repository';
 import type { BooleanLicenseFeature, N8nInstanceType, NumericLicenseFeature } from './Interfaces';
 import type { RedisServicePubSubPublisher } from './services/redis/RedisServicePubSubPublisher';
 import { RedisService } from './services/redis.service';
 import { OrchestrationService } from '@/services/orchestration.service';
 import { OnShutdown } from '@/decorators/OnShutdown';
+import { UsageMetricsService } from './services/usageMetrics.service';
 
 type FeatureReturnType = Partial<
 	{
@@ -38,7 +38,7 @@ export class License {
 		private readonly instanceSettings: InstanceSettings,
 		private readonly orchestrationService: OrchestrationService,
 		private readonly settingsRepository: SettingsRepository,
-		private readonly workflowRepository: WorkflowRepository,
+		private readonly usageMetricsService: UsageMetricsService,
 	) {}
 
 	async init(instanceType: N8nInstanceType = 'main') {
@@ -63,7 +63,7 @@ export class License {
 			? async (features: TFeatures) => await this.onFeatureChange(features)
 			: async () => {};
 		const collectUsageMetrics = isMainInstance
-			? async () => await this.collectUsageMetrics()
+			? async () => await this.usageMetricsService.collectUsageMetrics()
 			: async () => [];
 
 		try {
@@ -91,15 +91,6 @@ export class License {
 		}
 	}
 
-	async collectUsageMetrics() {
-		return [
-			{
-				name: 'activeWorkflows',
-				value: await this.workflowRepository.count({ where: { active: true } }),
-			},
-		];
-	}
-
 	async loadCertStr(): Promise<TLicenseBlock> {
 		// if we have an ephemeral license, we don't want to load it from the database
 		const ephemeralLicense = config.get('license.cert');

packages/cli/src/controllers/auth.controller.ts

@@ -187,7 +187,7 @@ export class AuthController {
 			}
 		}
 
-		const users = await this.userRepository.findManybyIds([inviterId, inviteeId]);
+		const users = await this.userRepository.findManyByIds([inviterId, inviteeId]);
 
 		if (users.length !== 2) {
 			this.logger.debug(

packages/cli/src/controllers/invitation.controller.ts

@@ -136,7 +136,7 @@ export class InvitationController {
 
 		const validPassword = this.passwordUtility.validate(password);
 
-		const users = await this.userRepository.findManybyIds([inviterId, inviteeId]);
+		const users = await this.userRepository.findManyByIds([inviterId, inviteeId]);
 
 		if (users.length !== 2) {
 			this.logger.debug(

packages/cli/src/controllers/users.controller.ts

@@ -172,7 +172,7 @@ export class UsersController {
 
 		const userIds = transferId ? [transferId, idToDelete] : [idToDelete];
 
-		const users = await this.userRepository.findManybyIds(userIds);
+		const users = await this.userRepository.findManyByIds(userIds);
 
 		if (!users.length || (transferId && users.length !== 2)) {
 			throw new NotFoundError(

packages/cli/src/databases/repositories/usageMetrics.repository.ts

@@ -0,0 +1,75 @@
+import config from '@/config';
+import { Service } from 'typedi';
+import { DataSource, Repository, Entity } from 'typeorm';
+
+@Entity()
+export class UsageMetrics {}
+
+@Service()
+export class UsageMetricsRepository extends Repository<UsageMetrics> {
+	constructor(dataSource: DataSource) {
+		super(UsageMetrics, dataSource.manager);
+	}
+
+	toTableName(name: string) {
+		const tablePrefix = config.getEnv('database.tablePrefix');
+
+		let tableName =
+			config.getEnv('database.type') === 'mysqldb'
+				? `\`${tablePrefix}${name}\``
+				: `"${tablePrefix}${name}"`;
+
+		const pgSchema = config.getEnv('database.postgresdb.schema');
+
+		if (pgSchema !== 'public') tableName = [pgSchema, tablePrefix + name].join('.');
+
+		return tableName;
+	}
+
+	async getLicenseRenewalMetrics() {
+		type Row = {
+			enabled_user_count: string | number;
+			active_workflow_count: string | number;
+			total_workflow_count: string | number;
+			total_credentials_count: string | number;
+			production_executions_count: string | number;
+			manual_executions_count: string | number;
+		};
+
+		const userTable = this.toTableName('user');
+		const workflowTable = this.toTableName('workflow_entity');
+		const credentialTable = this.toTableName('credentials_entity');
+		const workflowStatsTable = this.toTableName('workflow_statistics');
+
+		const [
+			{
+				enabled_user_count: enabledUsers,
+				active_workflow_count: activeWorkflows,
+				total_workflow_count: totalWorkflows,
+				total_credentials_count: totalCredentials,
+				production_executions_count: productionExecutions,
+				manual_executions_count: manualExecutions,
+			},
+		] = (await this.query(`
+			SELECT
+				(SELECT COUNT(*) FROM ${userTable} WHERE disabled = false) AS enabled_user_count,
+				(SELECT COUNT(*) FROM ${workflowTable} WHERE active = true) AS active_workflow_count,
+				(SELECT COUNT(*) FROM ${workflowTable}) AS total_workflow_count,
+				(SELECT COUNT(*) FROM ${credentialTable}) AS total_credentials_count,
+				(SELECT SUM(count) FROM ${workflowStatsTable} WHERE name IN ('production_success', 'production_error')) AS production_executions_count,
+				(SELECT SUM(count) FROM ${workflowStatsTable} WHERE name IN ('manual_success', 'manual_error')) AS manual_executions_count;
+		`)) as Row[];
+
+		const toNumber = (value: string | number) =>
+			typeof value === 'number' ? value : parseInt(value, 10);
+
+		return {
+			enabledUsers: toNumber(enabledUsers),
+			activeWorkflows: toNumber(activeWorkflows),
+			totalWorkflows: toNumber(totalWorkflows),
+			totalCredentials: toNumber(totalCredentials),
+			productionExecutions: toNumber(productionExecutions),
+			manualExecutions: toNumber(manualExecutions),
+		};
+	}
+}

packages/cli/src/databases/repositories/user.repository.ts

@@ -10,7 +10,7 @@ export class UserRepository extends Repository<User> {
 		super(User, dataSource.manager);
 	}
 
-	async findManybyIds(userIds: string[]) {
+	async findManyByIds(userIds: string[]) {
 		return await this.find({
 			where: { id: In(userIds) },
 			relations: ['globalRole'],

packages/cli/src/services/usageMetrics.service.ts

@@ -0,0 +1,27 @@
+import { UsageMetricsRepository } from '@/databases/repositories/usageMetrics.repository';
+import { Service } from 'typedi';
+
+@Service()
+export class UsageMetricsService {
+	constructor(private readonly usageMetricsRepository: UsageMetricsRepository) {}
+
+	async collectUsageMetrics() {
+		const {
+			activeWorkflows,
+			totalWorkflows,
+			enabledUsers,
+			totalCredentials,
+			productionExecutions,
+			manualExecutions,
+		} = await this.usageMetricsRepository.getLicenseRenewalMetrics();
+
+		return [
+			{ name: 'activeWorkflows', value: activeWorkflows },
+			{ name: 'totalWorkflows', value: totalWorkflows },
+			{ name: 'enabledUsers', value: enabledUsers },
+			{ name: 'totalCredentials', value: totalCredentials },
+			{ name: 'productionExecutions', value: productionExecutions },
+			{ name: 'manualExecutions', value: manualExecutions },
+		];
+	}
+}

packages/cli/test/integration/shared/db/credentials.ts

@@ -18,6 +18,31 @@ async function encryptCredentialData(credential: CredentialsEntity) {
 	return coreCredential.getDataToSave() as ICredentialsDb;
 }
 
+const emptyAttributes = {
+	name: 'test',
+	type: 'test',
+	data: '',
+	nodesAccess: [],
+};
+
+export async function createManyCredentials(
+	amount: number,
+	attributes: Partial<CredentialsEntity> = emptyAttributes,
+) {
+	return await Promise.all(
+		Array(amount)
+			.fill(0)
+			.map(async () => await createCredentials(attributes)),
+	);
+}
+
+export async function createCredentials(attributes: Partial<CredentialsEntity> = emptyAttributes) {
+	const credentialsRepository = Container.get(CredentialsRepository);
+	const entity = credentialsRepository.create(attributes);
+
+	return await credentialsRepository.save(entity);
+}
+
 /**
  * Save a credential to the test DB, sharing it with a user.
  */

packages/cli/test/integration/usageMetrics.repository.test.ts

@@ -0,0 +1,78 @@
+import { UsageMetricsRepository } from '@/databases/repositories/usageMetrics.repository';
+import { createAdmin, createMember, createOwner, createUser } from './shared/db/users';
+import * as testDb from './shared/testDb';
+import Container from 'typedi';
+import { CredentialsRepository } from '@/databases/repositories/credentials.repository';
+import { createManyWorkflows } from './shared/db/workflows';
+import { createManyCredentials } from './shared/db/credentials';
+import { WorkflowStatisticsRepository } from '@/databases/repositories/workflowStatistics.repository';
+import { StatisticsNames } from '@/databases/entities/WorkflowStatistics';
+import { WorkflowRepository } from '@/databases/repositories/workflow.repository';
+
+describe('UsageMetricsRepository', () => {
+	let usageMetricsRepository: UsageMetricsRepository;
+	let credentialsRepository: CredentialsRepository;
+	let workflowStatisticsRepository: WorkflowStatisticsRepository;
+	let workflowRepository: WorkflowRepository;
+
+	beforeAll(async () => {
+		await testDb.init();
+
+		usageMetricsRepository = Container.get(UsageMetricsRepository);
+		credentialsRepository = Container.get(CredentialsRepository);
+		workflowStatisticsRepository = Container.get(WorkflowStatisticsRepository);
+		workflowRepository = Container.get(WorkflowRepository);
+
+		await testDb.truncate(['User', 'Credentials', 'Workflow', 'Execution', 'WorkflowStatistics']);
+	});
+
+	afterAll(async () => {
+		await testDb.terminate();
+	});
+
+	describe('getLicenseRenewalMetrics()', () => {
+		test('should return license renewal metrics', async () => {
+			const [firstWorkflow, secondWorkflow] = await createManyWorkflows(2, { active: false });
+
+			await Promise.all([
+				createOwner(),
+				createAdmin(),
+				createMember(),
+				createMember(),
+				createUser({ disabled: true }),
+				createManyCredentials(2),
+				createManyWorkflows(3, { active: true }),
+			]);
+
+			await Promise.all([
+				workflowStatisticsRepository.insertWorkflowStatistics(
+					StatisticsNames.productionSuccess,
+					firstWorkflow.id,
+				),
+				workflowStatisticsRepository.insertWorkflowStatistics(
+					StatisticsNames.productionError,
+					firstWorkflow.id,
+				),
+				workflowStatisticsRepository.insertWorkflowStatistics(
+					StatisticsNames.manualSuccess,
+					secondWorkflow.id,
+				),
+				workflowStatisticsRepository.insertWorkflowStatistics(
+					StatisticsNames.manualError,
+					secondWorkflow.id,
+				),
+			]);
+
+			const metrics = await usageMetricsRepository.getLicenseRenewalMetrics();
+
+			expect(metrics).toStrictEqual({
+				enabledUsers: 4,
+				totalCredentials: 2,
+				totalWorkflows: 5,
+				activeWorkflows: 3,
+				productionExecutions: 2,
+				manualExecutions: 2,
+			});
+		});
+	});
+});