feat: Make it possible to dynamically load community nodes (#2849)

* ✨ Make it possible to dynamically load node packages

* ⚡ Fix comment

* ✨ Make possible to dynamically install nodes from npm

* Created migration for sqlite regarding community nodes

* Saving to db whenever a package with nodes is installed

* Created endpoint to fetch installed packages

* WIP - uninstall package with nodes

* Fix lint issues

* Updating nodes via API

* Lint and improvement fixes

* Created community node helpers and removed packages taht do not contain nodes

* Check for package updates when fetching installed packages

* Blocked access to non-owner and preventing incorrect install of packages

* Added auto healing process

* Unit tests for helpers

* Finishing tests for helpers

* Improved unit tests, refactored more helpers and created integration tests for GET

* Implemented detection of missing packages on init and added warning to frontend settings

* Add check for banned packages and fix broken tests

* Create migrations for other db systems

* Updated with latest changes from master

* Fixed conflict errors

* Improved unit tests, refactored more helpers and created integration tests for GET

* Implemented detection of missing packages on init and added warning to frontend settings

* 🔥 Removing access check for the Settings sidebar item

* ✨ Added inital community nodes settings screen

* ⚡Added executionMode flag to settings

* ✨ Implemented N8N-callout component

* 💄Updating Callout component template propery names

* 💄 Updating Callout component styling.

* 💄Updating Callout component sizing and colors.

* ✔️ Updating Callout component test snapshots after styling changes

* ✨ Updating the `ActionBox` component so it supports callouts and conditional button rendering

* 💄 Removing duplicate callout theme validation in the `ActionBox` component. Adding a selection control for it in the storybook.

* ✨ Added warning message if instance is in the queue mode. Updated colors based on the new design.

* ⚡ Added a custom permission support to router

* 🔨 Implemented UM detection as a custom permission.

* 👌Updating route permission logic.

* ✨ Implemented installed community packages list in the settings view

* 👌 Updating settings routes rules and community nodes setting view.

* Allow installation of packages that failed to load

* 👌 Updating `ActionBox`, `CommuntyPackageCard` components and settings loading logic.

* 👌 Fixing community nodes loading state and sidebar icon spacing.

* ✨ Implemented loading skeletons for community package cards

* 👌 Handling errrors while loading installed package list. Updating spacing.

* 👌 Updating community nodes error messages.

* Added disable flag

* 🐛 Fixing a community nodes update detection bug when there are missing packages. (#3497)

* ✨ Added front-end support for community nodes feature flag

* ✨ Implemented community package installation modal dialog

* 💄 Community nodes installation modal updates: Moved links to constants and used them in translations, disabling inputs in loading state.

* ✨ Implemented community packages install flow

* Standardize error codes (#3501)

* Standardize error: 400 for request issues such as invalid package name and 500 for installation problems

* Fix http status code for when package is not found

* ✨ Implemented community package installation modal dialog

* 💄 Community nodes installation modal updates: Moved links to constants and used them in translations, disabling inputs in loading state.

* ✨ Implemented community packages install flow

* ✨ Updated error handling based on the response codes

* ✨ Implemented community package installation modal dialog

* ✨ Implemented community package uninstall flow.

* ✨ Finished update confirm modal UI

* 💄 Replaced community nodes tooltip image with the one exported from figma.

* ✨ Implemented community package update process

* ✨ Updating community nodes list after successful package update

* 🔒 Updating public API setting route to use new access rules. Updating express app definition in community nodes tests

* ✨ Implemented community package installation modal dialog

* 💄 Community nodes installation modal updates: Moved links to constants and used them in translations, disabling inputs in loading state.

* ✨ Implemented community packages install flow

* ✨ Updated error handling based on the response codes

* Change output for installation request

* Improve payload for update requests

* 👌 Updating community nodes install modal UI

* 👌 Updating community nodes confirm modal logic

* 👌 Refactoring community nodes confirm modal dialog

* 👌 Separating community nodes components loading states

* 💄 Updating community nodes install modal spacing.

* Fix behavior for installing already installed packages

* 💡 Commenting community nodes install process

* 🔥 Removing leftover commits of deleted Vue mutations

* ✨ Updated node list to identify community nodes and handle node name clash

* ✨ Implemented missing community node dialog.

* 💄 Updating n8n-tabs component to support tooltips

* ✨ Updating node details with community node details.

* 🔨 Using back-end response when updating community packages

* 👌 Updating tabs component and refactoring community nodes store mutations

* 👌 Adding community node flag to node type descriptions and using it to identify community nodes

* 👌 Hiding unnecessary elements from missing node details panel.

* 👌 Updating missing node type descriptions for custom and community nodes

* 👌 Updating community node package name detection logic

* 👌 Removing communityNode flag from node description

* ✨ Adding `force` flag to credentials fetching (#3527)

* ✨ Adding `force` flag to credentials fetching which can be used to skip check when loading credentials

* ✨ Forcing credentials loading when opening nodeView

* 👌 Minor updates to community nodes details panel

* tests for post endpoint

* duplicate comments

* Add Patch and Delete enpoints tests

* 🔒 Using `pageCategory`prop to assemble the list of settings routes instead of hard-coded array (#3562)

* 📈 Added front-end telemetry events for community nodes

* 📈 Updating community nodes telemetry events

* 💄 Updating community nodes settings UI elements based on product/design review

* 💄 Updating node view & node details view for community nodes based on product/design feedback

* 💄 Fixing community node text capitalisation

* ✨ Adding community node install error message under the package name input field

* Fixed and improved tests

* Fix lint issue

* feat: Migrated to npm release of riot-tmpl fork.

* 📈 Updating community nodes telemetry events based on the product review

* 💄 Updating community nodes UI based on the design feedback

* 🔀 Merging recent node draggable panels changes

* Implement self healing process

* Improve error messages for package name requirement and disk space

* 💄 Removing front-end error message override since appropriate response is available from the back-end

* Fix lint issues

* Fix installed node name

* 💄 Removed additional node name parsing

* 📈 Updating community nodes telemetry events

* Fix postgres migration for cascading nodes when package is removed

* Remove postman mock for banned packages

* 📈 Adding missing telemetry event for community node documentation click

* 🐛 Fixing community nodes UI bugs reported during the bug bash

* Fix issue with uninstalling packages not reflecting UI

* 🐛 Fixing a missing node type bug when trying to run a workflow.

* Improve error detection for installing packages

* 💄 Updating community nodes components styling and wording based on the product feedback

* Implement telemetry be events

* Add author name and email to packages

* Fix telemetry be events for community packages

* 📈 Updating front-end telemetry events with community nodes author data

* 💄 Updating credentials documentation link logic to handle community nodes credentials

* 🐛 Fixing draggable panels logic

* Fix duplicate wrong import

* 💄 Hiding community nodes credentials documentation links when they don't contain an absolute URL

* Fix issue with detection of missing packages

* 💄 Adding the `Docs` tab to community nodes

* 💄 Adding a failed loading indicator to community nodes list

* Prevent n8n from crashing on startup

* Refactor and improve code quality

* ⚡ Remove not needed depenedency

Co-authored-by: Omar Ajoue <krynble@gmail.com>
Co-authored-by: Milorad Filipović <milorad@n8n.io>
Co-authored-by: Milorad FIlipović <miloradfilipovic19@gmail.com>
Co-authored-by: agobrech <ael.gobrecht@gmail.com>
Co-authored-by: Alex Grozav <alex@grozav.com>

packages/cli/commands/start.ts

@@ -33,6 +33,7 @@ import {
 } from '../src';
 
 import { getLogger } from '../src/Logger';
+import { getAllInstalledPackages } from '../src/CommunityNodes/packageModel';
 
 // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-var-requires
 const open = require('open');
@@ -60,6 +61,10 @@ export class Start extends Command {
 			description:
 				'runs the webhooks via a hooks.n8n.cloud tunnel server. Use only for testing and development!',
 		}),
+		reinstallMissingPackages: flags.boolean({
+			description:
+				'Attempts to self heal n8n if packages with nodes are missing. Might drastically increase startup times.',
+		}),
 	};
 
 	/**
@@ -206,6 +211,23 @@ export class Start extends Command {
 				// Wait till the database is ready
 				await startDbInitPromise;
 
+				const installedPackages = await getAllInstalledPackages();
+				const missingPackages = new Set<{
+					packageName: string;
+					version: string;
+				}>();
+				installedPackages.forEach((installedpackage) => {
+					installedpackage.installedNodes.forEach((installedNode) => {
+						if (!loadNodesAndCredentials.nodeTypes[installedNode.type]) {
+							// Leave the list ready for installing in case we need.
+							missingPackages.add({
+								packageName: installedpackage.packageName,
+								version: installedpackage.installedVersion,
+							});
+						}
+					});
+				});
+
 				await UserSettings.getEncryptionKey();
 
 				// Load settings from database and set them to config.
@@ -214,6 +236,42 @@ export class Start extends Command {
 					config.set(setting.key, JSON.parse(setting.value));
 				});
 
+				config.set('nodes.packagesMissing', '');
+				if (missingPackages.size) {
+					LoggerProxy.error(
+						'n8n detected that some packages are missing. For more information, visit https://docs.n8n.io/integrations/community-nodes/troubleshooting/',
+					);
+
+					if (flags.reinstallMissingPackages || process.env.N8N_REINSTALL_MISSING_PACKAGES) {
+						LoggerProxy.info('Attempting to reinstall missing packages', { missingPackages });
+						try {
+							// Optimistic approach - stop if any installation fails
+							// eslint-disable-next-line no-restricted-syntax
+							for (const missingPackage of missingPackages) {
+								// eslint-disable-next-line no-await-in-loop
+								void (await loadNodesAndCredentials.loadNpmModule(
+									missingPackage.packageName,
+									missingPackage.version,
+								));
+								missingPackages.delete(missingPackage);
+							}
+							LoggerProxy.info(
+								'Packages reinstalled successfully. Resuming regular intiailization.',
+							);
+						} catch (error) {
+							LoggerProxy.error('n8n was unable to install the missing packages.');
+						}
+					}
+				}
+				if (missingPackages.size) {
+					config.set(
+						'nodes.packagesMissing',
+						Array.from(missingPackages)
+							.map((missingPackage) => `${missingPackage.packageName}@${missingPackage.version}`)
+							.join(' '),
+					);
+				}
+
 				if (config.getEnv('executions.mode') === 'queue') {
 					const redisHost = config.getEnv('queue.bull.redis.host');
 					const redisPassword = config.getEnv('queue.bull.redis.password');