fix(core): Address feedback on modules (no-changelog) (#17966)

packages/@n8n/backend-common/src/modules/__tests__/module-registry.test.ts

@@ -161,7 +161,7 @@ describe('initModules', () => {
 		expect(moduleRegistry.settings.get(moduleName)).toBe(moduleSettings);
 	});
 
-	it('activates the module', async () => {
+	it('activates module with settings', async () => {
 		// ARRANGE
 		const moduleName = 'test-module';
 		const moduleSettings = { foo: 1 };
@@ -184,4 +184,26 @@ describe('initModules', () => {
 		expect(moduleRegistry.isActive(moduleName as any)).toBe(true);
 		expect(moduleRegistry.getActiveModules()).toEqual([moduleName]);
 	});
+
+	it('activates module without settings', async () => {
+		// ARRANGE
+		const moduleName = 'test-module';
+		const ModuleClass: ModuleInterface = {
+			init: jest.fn(),
+		};
+		const moduleMetadata = mock<ModuleMetadata>({
+			getEntries: jest.fn().mockReturnValue([[moduleName, { class: ModuleClass }]]),
+		});
+		Container.get = jest.fn().mockReturnValue(ModuleClass);
+
+		const moduleRegistry = new ModuleRegistry(moduleMetadata, mock(), mock(), mock());
+
+		// ACT
+		await moduleRegistry.initModules();
+
+		// ASSERT
+		// eslint-disable-next-line @typescript-eslint/no-explicit-any
+		expect(moduleRegistry.isActive(moduleName as any)).toBe(true);
+		expect(moduleRegistry.getActiveModules()).toEqual([moduleName]);
+	});
 });

packages/@n8n/backend-common/src/modules/module-registry.ts

@@ -106,9 +106,7 @@ export class ModuleRegistry {
 
 			const moduleSettings = await Container.get(ModuleClass).settings?.();
 
-			if (!moduleSettings) continue;
-
-			this.settings.set(moduleName, moduleSettings);
+			if (moduleSettings) this.settings.set(moduleName, moduleSettings);
 
 			this.logger.debug(`Initialized module "${moduleName}"`);
 

packages/@n8n/decorators/src/module/module.ts

@@ -16,7 +16,13 @@ export interface BaseEntity {
 	reload(): Promise<void>;
 }
 
-export type EntityClass = new () => BaseEntity;
+export interface TimestampedEntity {
+	id: string;
+	createdAt: Date;
+	updatedAt: Date;
+}
+
+export type EntityClass = new () => BaseEntity | TimestampedEntity;
 
 export type ModuleSettings = Record<string, unknown>;