feat(core): Lazy-load nodes and credentials to reduce baseline memory usage (#4577)

packages/workflow/src/Interfaces.ts

@@ -1,9 +1,7 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-/* eslint-disable import/no-extraneous-dependencies */
-// eslint-disable-next-line import/no-extraneous-dependencies
 // eslint-disable-next-line max-classes-per-file
-import * as express from 'express';
-import * as FormData from 'form-data';
+import type * as express from 'express';
+import type * as FormData from 'form-data';
 import type { IncomingHttpHeaders } from 'http';
 import type { URLSearchParams } from 'url';
 import type { IDeferredPromise } from './DeferredPromise';
@@ -311,6 +309,7 @@ export interface ICredentialType {
 	name: string;
 	displayName: string;
 	icon?: string;
+	iconUrl?: string;
 	extends?: string[];
 	properties: INodeProperties[];
 	documentationUrl?: string;
@@ -325,9 +324,7 @@ export interface ICredentialType {
 }
 
 export interface ICredentialTypes {
-	credentialTypes?: ICredentialTypeData;
-	init(credentialTypes?: ICredentialTypeData): Promise<void>;
-	getAll(): ICredentialType[];
+	recognizes(credentialType: string): boolean;
 	getByName(credentialType: string): ICredentialType;
 }
 
@@ -1257,6 +1254,7 @@ export interface INodeTypeBaseDescription {
 	displayName: string;
 	name: string;
 	icon?: string;
+	iconUrl?: string;
 	group: string[];
 	description: string;
 	documentationUrl?: string;
@@ -1473,24 +1471,37 @@ export type WebhookResponseData = 'allEntries' | 'firstEntryJson' | 'firstEntryB
 export type WebhookResponseMode = 'onReceived' | 'lastNode';
 
 export interface INodeTypes {
-	nodeTypes: INodeTypeData;
-	init(nodeTypes?: INodeTypeData): Promise<void>;
 	getAll(): Array<INodeType | IVersionedNodeType>;
 	getByNameAndVersion(nodeType: string, version?: number): INodeType | undefined;
 }
 
-export interface ICredentialTypeData {
-	[key: string]: {
-		type: ICredentialType;
-		sourcePath: string;
-	};
+export type LoadingDetails = {
+	className: string;
+	sourcePath: string;
+};
+
+export type KnownNodesAndCredentials = {
+	nodes: Record<string, LoadingDetails>;
+	credentials: Record<string, LoadingDetails>;
+};
+
+export interface LoadedClass<T> {
+	sourcePath: string;
+	type: T;
 }
 
-export interface INodeTypeData {
-	[key: string]: {
-		type: INodeType | IVersionedNodeType;
-		sourcePath: string;
-	};
+type LoadedData<T> = Record<string, LoadedClass<T>>;
+export type ICredentialTypeData = LoadedData<ICredentialType>;
+export type INodeTypeData = LoadedData<INodeType | IVersionedNodeType>;
+
+export type LoadedNodesAndCredentials = {
+	nodes: INodeTypeData;
+	credentials: ICredentialTypeData;
+};
+
+export interface INodesAndCredentials {
+	known: KnownNodesAndCredentials;
+	loaded: LoadedNodesAndCredentials;
 }
 
 export interface IRun {