Advanced Topics

Advanced - 2+ hours

Prerequisites: Strong JavaScript/TypeScript, understanding of CRDT, real-time systems

Explore advanced features for building custom components, optimizing performance, and extending BoardAPI.

What You'll Find Here

Custom Components SDK

Build interactive board objects with shared state:

import { BoardSDK } from '@boardapi/sdk';

const board = new BoardSDK({
  componentId: 'my-component',
  boardUuid: 'abc-123'
});

// Shared state (CRDT-like)
await board.storage.set('score', 100);
board.storage.onChange('score', (value) => {
  console.log('Score updated:', value);
});

Learn More: Custom Components SDK

---

Performance Optimization

Techniques for large-scale deployments:

• Board Pagination: Handle 1000+ elements
• Lazy Loading: Load elements on viewport enter
• WebSocket Throttling: Reduce message overhead
• CDN Configuration: Cache static assets

Learn More: Performance Guide

---

Advanced Real-time Patterns

• Conflict Resolution: Handle concurrent edits
• Offline Support: Queue changes when disconnected
• Custom Event Handlers: Build domain-specific logic
• WebSocket Reconnection: Implement robust recovery

---

Popular Advanced Use Cases

1. Educational Games

Build interactive learning experiences:

// Balloon Game Example
const balloon = board.registerComponent({
  type: 'balloon',
  props: { color: 'red', popped: false }
});

balloon.onClick(() => {
  balloon.updateProps({ popped: true });
  board.storage.increment('score', 10);
});

Full Tutorial: Balloon Game

---

2. Custom Data Visualization

Real-time charts and dashboards:

board.storage.onChange('sales-data', (data) => {
  renderChart(data); // Custom rendering logic
});

---

3. Collaborative Design Tools

Build domain-specific editors:

• Restaurant menu builders
• Floor plan designers
• Circuit diagram editors

Examples: Component Examples

---

SDK Modules Reference

Module	Purpose	Complexity
board.storage	Shared state (CRDT-like)	Medium
board.props	Component configuration	Low
board.participants	User presence	Low
board.lifecycle	Mount/unmount hooks	Low
board.ui	Custom UI rendering	High
board.offline	Queue changes offline	High

---

Development Workflow

1. Local Development

   npm install -g @boardapi/cli
   boardapi component create my-component
   boardapi component dev

2. Testing

   boardapi component test

3. Publishing

   boardapi component publish

Full Reference: CLI Commands

---

Best Practices

Component Design

• Keep components small and focused
• Use shared state for collaboration
• Implement offline support for critical data
• Test with 10+ concurrent users

Performance

• Avoid rendering 100+ elements at once
• Throttle WebSocket messages (max 10/sec)
• Use pagination for large datasets
• Implement viewport-based loading

Security

• Validate all user inputs
• Sanitize HTML in custom components
• Never expose API keys in client code
• Use host links for admin features

---

Next Steps

Recommended Path

Start Here:

1. Custom Components Introduction
2. Quick Start Tutorial
3. SDK API Overview

Then Build:

1. Clicker Button - Simple example
2. Balloon Game - Interactive game
3. Restaurant Menu - Complex UI

Finally Deploy:

1. Production Integration
2. Performance Optimization

Community Components

Browse components built by the community:

• Educational: Quiz cards, flashcards, timers
• Games: Memory match, word search, trivia
• Tools: Kanban cards, voting buttons, polls

Coming soon: Component marketplace

---

Need Help?

• SDK API Reference: board.storage
• Examples: Component Examples
• Troubleshooting: Common Issues