obsidian-webhooks-events

# Obsidian Webhooks & Events ## Overview Complete guide to Obsidian's event system: vault events (create, modify, delete, rename), workspace events (layout, leaf changes, editor state), metadataCache events, DOM events, custom EventRef patterns, and periodic tasks. Every event registration uses `this.registerEvent()` for automatic cleanup on plugin unload. ## Prerequisites - Working Obsidian plugin with `onload()` / `onunload()` lifecycle - Understanding of TypeScript event handler signatures - Familiarity with Obsidian's TFile, TFolder, and WorkspaceLeaf types ## Instructions ### Step 1: Vault Events — File Lifecycle Vault events fire when files and folders are created, modified, deleted, or renamed. ```typescript import { Plugin, TFile, TFolder, TAbstractFile } from 'obsidian'; export default class EventPlugin extends Plugin { async onload() { // File created this.registerEvent( this.app.vault.on('create', (file: TAbstractFile) => { if (file instanceof TFile) { console.log('New file:', file.path); this.onFileCreated(file); } if (file instanceof TFolder) { console.log('New folder:', file.path); } }) ); // File content modified (fires on save and on every sync update) this.registerEvent( this.app.vault.on('modify', (file: TAbstractFile) => { if (file instanceof TFile) { this.onFileModified(file); } }) ); // File deleted thi...