# Development with Dynamic Framework

This section covers all technical aspects of development with Dynamic Framework, from components to advanced integrations.

# Section Contents

# Components

Complete catalog of available components:

HTML vs React components
Navigation components
Form components
Specialized financial components

# Experiences and Templates

Pre-designed solutions to accelerate development:

Retail Banking
Corporate Banking
Investments
Marketing and Onboarding

# React Integration

Complete guide for developing with React:

Environment setup
Custom hooks
State management
Best practices

# Widgets

Modular widget development:

Creating widgets
Publishing and distribution
Versioning
Testing

# API Integration

Connect your application with backend services:

Service configuration
Authentication and security
Error handling
Cache and optimization

# Fundamental Concepts

# Component Architecture

Dynamic Framework follows a component-based architecture that promotes:

Reusability: Use the same component in multiple places
Isolation: Each component is independent
Composition: Combine components to create complex interfaces
Maintainability: Update a component, update all its uses

# Development Flow

1. Design → 2. Components → 3. Composition → 4. Integration → 5. Testing → 6. Deployment

# Development Principles

Mobile First: Design for mobile first
Accessibility: Every component must be accessible
Performance: Optimize from the start
Security: Validate all inputs
Testing: Write tests while developing

# Development Tools

# Modyo CLI

# Essential commands
modyo-cli init          # Initialize project
modyo-cli serve         # Development server
modyo-cli build         # Build for production
modyo-cli push          # Deploy to Modyo
modyo-cli preview       # Preview before deploying

# Dynamic DevTools

Component inspector
Performance monitor
State debugger
Accessibility analyzer

# Testing

Unit Testing: Jest + React Testing Library
Integration Testing: Cypress
Visual Testing: Storybook
Performance Testing: Lighthouse

# Development Patterns

# Component Composition

// Small and focused components
const AccountBalance = ({ account }) => (
  <Card>
    <CardHeader>{account.name}</CardHeader>
    <CardBody>
      <Amount value={account.balance} currency={account.currency} />
    </CardBody>
  </Card>
);

// Composition to create complex interfaces
const Dashboard = () => (
  <Layout>
    <Header />
    <Grid>
      {accounts.map(account => (
        <AccountBalance key={account.id} account={account} />
      ))}
    </Grid>
  </Layout>
);

# State Management

// Local state for UI
const [isOpen, setIsOpen] = useState(false);

// Global state for application data
const { accounts, loading, error } = useAccounts();

// Server state with cache
const { data } = useQuery('transactions', fetchTransactions);

# Error Handling

// Error boundaries for components
<ErrorBoundary fallback={<ErrorMessage />}>
  <RiskyComponent />
</ErrorBoundary>

// Try-catch for async operations
try {
  const result = await transferFunds(data);
  showSuccess(result);
} catch (error) {
  showError(error.message);
  logError(error);
}

# Best Practices

# DO's

Use TypeScript for type safety
Implement lazy loading for heavy components
Cache expensive API calls
Write tests for critical logic
Document complex components

# DON'Ts

Don't hardcode sensitive values
Don't ignore accessibility warnings
Don't optimize prematurely
Don't copy code, reuse components
Don't skip code review

# Workflows

# New Feature Development

Create branch from develop
Implement feature with TDD
Ensure 80%+ coverage
Pass linters and formatters
Create PR with clear description
Code review by 2+ developers
Merge after approval

# Debugging

Reproduce issue locally
Use React DevTools to inspect
Add temporary logs if needed
Identify problematic component
Fix + test to prevent regression
Document the solution