Implementation Workflow Guide

The complete guide to using UTA's Documentation → Examples → Implementation flow for efficient React Native development

Overview

This guide explains how to leverage our three-tier learning system to build React Native applications efficiently. Whether you're implementing authentication, building UI components, or setting up API clients, this workflow will help you move from concept to working code quickly.

The Three-Tier System

Tier 1: Documentation

Comprehensive guides covering architectural decisions, patterns, and best practices. Start here to understand the "why" behind our approaches.

Tier 2: Reference Implementations

Complete, copy-paste ready code examples that demonstrate the documentation concepts in action. These are production-quality implementations you can use immediately.

Tier 3: Your Implementation

Your actual project code, built using the patterns and examples from tiers 1 and 2.

Implementation Workflow

Domain-Specific Workflows

Authentication Implementation

1. Documentation Phase

• Start with Authentication Flow Implementation Guide
• Review Authentication Architecture
• Understand token management and security patterns

2. Reference Implementation Phase

• Study Authentication Domain
• Copy the service patterns and hook implementations
• Review the testing strategies

3. Implementation Phase

// Your project - copy from reference implementation
import { useAuth } from '@/core/domains/auth/hooks/useAuth';
import { authService } from '@/core/domains/auth/services/authService';
 
// Customize API endpoints for your backend
const authService = new AuthService('https://your-api.com');
 
// Use the proven hook patterns
export function LoginScreen() {
  const { login, isLoading } = useAuth();
  
  const handleLogin = async (credentials) => {
    await login(credentials);
    // Navigation handled by auth state change
  };
  
  return (
    // Your UI implementation
  );
}

UI Component Development

1. Documentation Phase

• Read Foundation Components Guide
• Study Interactive Elements
• Understand design token usage and accessibility requirements

2. Reference Implementation Phase

• Examine Button Component
• Study Input Component Example
• Review the component architecture and testing patterns

3. Implementation Phase

// Your project - adapt from reference implementation
import { Button } from '@/ui/foundation/Button';
 
// Use proven component patterns
export function SubmitForm() {
  return (
    <Button
      variant="primary"
      loading={isSubmitting}
      onPress={handleSubmit}
    >
      Submit Application
    </Button>
  );
}

API Client Setup

1. Documentation Phase

• Study API Client Architecture
• Review authentication integration patterns
• Understand error handling strategies

2. Reference Implementation Phase

• Copy API Client Architecture
• Study the interceptor patterns and error handling
• Review the TypeScript type definitions

3. Implementation Phase

// Your project - customize from reference
import { ApiClient } from '@/core/shared/api/ApiClient';
 
// Configure for your environment
const apiClient = new ApiClient(process.env.EXPO_PUBLIC_API_URL);
 
// Use proven service patterns
export class ProductService {
  async getProducts() {
    return apiClient.get('/products');
  }
}

Advanced Workflows

Feature Development

For complete features that combine multiple domains:

1. Documentation Phase

• Review Feature Implementation Decision Tree
• Study domain-specific guides
• Plan the feature architecture

2. Reference Implementation Phase

• Combine multiple reference implementations
• Study integration patterns between domains
• Review testing strategies for features

3. Implementation Phase

• Build incrementally, testing each component
• Use proven integration patterns
• Follow the established architectural principles

State Management Integration

1. Documentation Phase

• Read State Management
• Study State Management Architecture - Core patterns and decisions
• Review Server State Management - API data and caching
• Understand Client State Management - Application state patterns
• Learn Component State Management - Local component state best practices
• Study State Integration Patterns - How different state layers work together

2. Reference Implementation Phase

• Study Products Domain
• Review React Query integration patterns for server state
• Examine Zustand patterns for client state management
• Study component state patterns and state lifting strategies

3. Implementation Phase

• Implement query hooks for server state management
• Set up Zustand stores for application state
• Apply proper component state patterns
• Integrate different state management layers consistently
• Handle loading, error, and success states across all state types

Best Practices

Customization Strategy

✅ DO: Smart Customization

• Copy the core patterns and adapt the details
• Maintain the architectural principles
• Keep the TypeScript type safety
• Follow the testing patterns

❌ DON'T: Wholesale Changes

• Don't rewrite everything from scratch
• Don't ignore the architectural patterns
• Don't skip the testing implementations
• Don't remove TypeScript types

File Organization

Follow the established structure from reference implementations:

src/
├── core/
│   ├── domains/          # Business logic domains
│   └── shared/           # Shared utilities and services
├── features/             # Application features
├── ui/                   # UI component library
└── app/                  # App-specific code

Progressive Enhancement

Start Simple, Add Complexity Gradually:

1. Basic Implementation - Copy reference implementation as-is
2. Customization - Adapt for your specific needs
3. Enhancement - Add advanced features incrementally
4. Optimization - Optimize for performance and user experience

Common Patterns

Error Handling

All reference implementations include comprehensive error handling:

// Pattern from reference implementations
try {
  const result = await apiClient.get('/data');
  return result;
} catch (error) {
  if (error instanceof ApiError) {
    // Handle specific API errors
    throw new UserFriendlyError(error.message);
  }
  // Handle network errors, etc.
  throw error;
}

Loading States

Consistent loading state management:

// Pattern from reference implementations
const { data, isLoading, error } = useQuery({
  queryKey: ['products'],
  queryFn: () => productService.getProducts(),
});
 
if (isLoading) return <LoadingSpinner />;
if (error) return <ErrorMessage error={error} />;

Type Safety

Comprehensive TypeScript usage:

// Patterns from reference implementations
interface ProductFilters {
  category?: string;
  priceRange?: { min: number; max: number };
}
 
function useProducts(filters: ProductFilters = {}) {
  return useQuery({
    queryKey: ['products', filters],
    queryFn: () => productService.getProducts(filters),
  });
}

Troubleshooting

Common Issues and Solutions

Issue: "I can't find the right starting point"

• Solution: Start with the Architecture Documentation to understand the big picture

Issue: "The reference implementation doesn't match my needs exactly"

• Solution: Use it as a foundation and customize the specific parts you need

Issue: "I'm not sure which patterns to follow"

• Solution: Follow the examples in reference implementations - they demonstrate proven patterns

Issue: "The code seems complex"

• Solution: Start with simpler examples and build up complexity gradually

Getting Help

1. Check the Documentation - Most questions are covered in the guides
2. Study Reference Implementations - See working examples of complex patterns
3. Review Testing Patterns - Understand how to verify your implementation
4. Ask Specific Questions - Reference the exact guide or implementation you're working with

Success Metrics

You'll know you're using the workflow effectively when:

• ✅ You can quickly find relevant documentation and examples
• ✅ You spend less time debugging architectural issues
• ✅ Your code follows consistent patterns across features
• ✅ You can easily onboard new team members
• ✅ Testing and maintenance become straightforward

Ready to build? Start with the Architecture Documentation and then dive into the specific guides and reference implementations for your use case!