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🚀 Future Features & Roadmap

Planned features that will make Flowfull Client even more powerful

This document outlines upcoming features and how they will improve your development experience.

📋 Feature Status

Feature Status Priority Impact
Request/Response Transformers ✅ DONE High High
Middleware System 🔄 Planned High High
Advanced Caching (TTL) 🔄 Planned High High
File Upload Utilities 🔄 Planned Medium High
Request Deduplication 🔄 Planned Medium Medium
Batch Requests 🔄 Planned Medium Medium
Offline Support (RN) 🔄 Planned Medium High
WebSocket Support 🔄 Planned Low Medium
Custom Serializers 🔄 Planned Low Low

🎯 High Priority Features

1. ✅ Request/Response Transformers (DONE)

Status: ✅ Already implemented via interceptors

What it does: Transform requests before sending and responses after receiving

How to use:

const api = new FlowfullClient('https://api.example.com');

// Request transformer
api.addRequestInterceptor(async (config) => {
  // Add timestamp to all requests
  config.headers['X-Request-Time'] = Date.now().toString();
  return config;
});

// Response transformer
api.addResponseInterceptor(async (response) => {
  // Convert all date strings to Date objects
  if (response.data && response.data.created_at) {
    response.data.created_at = new Date(response.data.created_at);
  }
  return response;
});

2. 🔄 Middleware System with LocalStorage Cache (TTL)

Status: 🔄 Planned

What it does: Cache responses in localStorage/AsyncStorage with Time-To-Live (TTL)

Why you need it:

  • ✅ Reduce API calls
  • ✅ Faster app performance
  • ✅ Offline-first experience
  • ✅ Save bandwidth
  • ✅ Better UX

How it will work:

import { FlowfullClient, cacheMiddleware } from '@pubflow/flowfull-client';

const api = new FlowfullClient('https://api.example.com', {
  middleware: [
    cacheMiddleware({
      storage: 'localStorage',  // or 'AsyncStorage'
      ttl: 5 * 60 * 1000,       // 5 minutes
      keyPrefix: 'api_cache_',
      exclude: ['/auth/*'],      // Don't cache auth endpoints
      include: ['/products', '/categories']  // Only cache these
    })
  ]
});

// First call → hits API, caches response
const products = await api.get('/products');

// Second call (within 5 min) → returns from cache
const cachedProducts = await api.get('/products');  // Instant!

// After 5 min → cache expired, hits API again

Advanced usage:

// Per-request TTL override
await api.get('/products', {
  cache: {
    ttl: 10 * 60 * 1000,  // 10 minutes for this request
    key: 'products_list'   // Custom cache key
  }
});

// Force refresh (bypass cache)
await api.get('/products', {
  cache: false
});

// Clear cache
await api.clearCache();
await api.clearCache('/products');  // Clear specific endpoint

Cache structure:

interface CacheEntry {
  data: any;              // Response data
  timestamp: number;      // When cached
  ttl: number;            // Time to live (ms)
  url: string;            // Request URL
  params?: any;           // Query params (for cache key)
}

// LocalStorage key format
// api_cache_/products?page=1&limit=20

How it improves your system:

Example 1: DadosBall - Player Stats

// Cache player stats for 5 minutes
const stats = await api.get('/player/stats', {
  cache: { ttl: 5 * 60 * 1000 }
});

// Multiple components can access without re-fetching
// Reduces server load by 80%+

Example 2: Bethel App - Events

// Cache events for 30 minutes
const events = await api.get('/events', {
  cache: { ttl: 30 * 60 * 1000 }
});

// Users can browse events offline
// Reduces API calls significantly

Example 3: E-commerce - Product Catalog

// Cache product list for 10 minutes
const products = await api.get('/products', {
  cache: { ttl: 10 * 60 * 1000 }
});

// Instant navigation between pages
// Better UX, less server load

3. 🔄 File Upload Utilities

Status: 🔄 Planned

What it does: Simplified file upload with progress tracking

How it will work:

// Simple upload
const response = await api.upload('/upload', {
  file: imageFile,
  field: 'image',
  data: {
    title: 'My Image',
    category: 'photos'
  },
  onProgress: (progress) => {
    console.log(`Upload: ${progress}%`);
  }
});

// Multiple files
const response = await api.uploadMultiple('/upload', {
  files: [image1, image2, image3],
  field: 'images',
  onProgress: (progress) => {
    console.log(`Upload: ${progress}%`);
  }
});

// React Native image picker integration
import * as ImagePicker from 'expo-image-picker';

const pickAndUpload = async () => {
  const result = await ImagePicker.launchImageLibraryAsync({
    mediaTypes: ImagePicker.MediaTypeOptions.Images,
    quality: 0.8
  });
  
  if (!result.canceled) {
    const response = await api.upload('/profile/picture', {
      file: result.assets[0],
      onProgress: (progress) => {
        setUploadProgress(progress);
      }
    });
  }
};

How it improves your system:

Example: Bethel App - Profile Picture

// Before (manual FormData)
const formData = new FormData();
formData.append('image', {
  uri: image.uri,
  type: 'image/jpeg',
  name: 'profile.jpg'
});

const response = await fetch(`${API_URL}/profile/picture`, {
  method: 'POST',
  body: formData,
  headers: {
    'X-Session-ID': sessionId
  }
});

// After (with upload utility)
const response = await api.upload('/profile/picture', {
  file: image,
  onProgress: (p) => setProgress(p)
});

4. 🔄 Request Deduplication

Status: 🔄 Planned

What it does: Prevent duplicate simultaneous requests

Why you need it:

  • ✅ Prevent race conditions
  • ✅ Reduce server load
  • ✅ Save bandwidth
  • ✅ Better performance

How it will work:

const api = new FlowfullClient('https://api.example.com', {
  deduplication: true
});

// Multiple components request same data simultaneously
const promise1 = api.get('/user/profile');
const promise2 = api.get('/user/profile');
const promise3 = api.get('/user/profile');

// Only 1 actual HTTP request is made
// All 3 promises resolve with same response
const [result1, result2, result3] = await Promise.all([promise1, promise2, promise3]);

How it improves your system:

Example: React Native - Multiple Components

// ProfileScreen.tsx
const { data: profile } = await api.get('/profile');

// HeaderComponent.tsx (renders at same time)
const { data: profile } = await api.get('/profile');

// StatsWidget.tsx (renders at same time)
const { data: profile } = await api.get('/profile');

// Without deduplication: 3 API calls
// With deduplication: 1 API call ✅

5. 🔄 Batch Requests

Status: 🔄 Planned

What it does: Combine multiple requests into one HTTP call

How it will work:

const results = await api.batch([
  { method: 'GET', url: '/user/profile' },
  { method: 'GET', url: '/user/stats' },
  { method: 'GET', url: '/user/settings' },
  { method: 'POST', url: '/user/activity', body: { action: 'view' } }
]);

// Single HTTP request to backend
// Backend processes all 4 requests
// Returns array of responses

console.log(results[0].data);  // Profile
console.log(results[1].data);  // Stats
console.log(results[2].data);  // Settings
console.log(results[3].data);  // Activity response

Backend support needed:

// Backend route
app.post('/batch', async (c) => {
  const requests = await c.req.json();
  
  const results = await Promise.all(
    requests.map(async (req) => {
      // Process each request
      return await processRequest(req);
    })
  );
  
  return c.json({
    success: true,
    data: results
  });
});

How it improves your system:

Example: Dashboard - Load All Data

// Before: 4 separate requests
const profile = await api.get('/profile');
const stats = await api.get('/stats');
const notifications = await api.get('/notifications');
const settings = await api.get('/settings');

// After: 1 batch request
const [profile, stats, notifications, settings] = await api.batch([
  { method: 'GET', url: '/profile' },
  { method: 'GET', url: '/stats' },
  { method: 'GET', url: '/notifications' },
  { method: 'GET', url: '/settings' }
]);

// 75% reduction in HTTP overhead
// Faster page load

6. 🔄 Offline Support (React Native)

Status: 🔄 Planned

What it does: Queue requests when offline, sync when online

How it will work:

const api = new FlowfullClient('https://api.example.com', {
  offline: {
    enabled: true,
    storage: AsyncStorage,
    queueKey: 'offline_queue',
    syncOnReconnect: true
  }
});

// User is offline
await api.post('/game/score', { score: 1500 });
// ✅ Queued locally

await api.patch('/profile', { name: 'New Name' });
// ✅ Queued locally

// User comes back online
// ✅ Automatically syncs all queued requests
// ✅ Fires onSync callback

api.onSync((results) => {
  console.log('Synced:', results);
});

How it improves your system:

Example: DadosBall - Game Scores

// Player finishes game offline
await api.post('/game/complete', {
  score: 1500,
  gems: 50,
  coins: 100
});

// ✅ Saved locally
// ✅ Syncs when online
// ✅ User doesn't lose progress

🎨 Medium Priority Features

7. 🔄 WebSocket Support

How it will work:

const api = new FlowfullClient('https://api.example.com');

// Connect to WebSocket
const ws = api.websocket('/live-updates');

ws.on('message', (data) => {
  console.log('New update:', data);
});

ws.send({ action: 'subscribe', channel: 'notifications' });

💡 Implementation Priority

Phase 1 (Next Release)

  1. ✅ Middleware System with Cache (TTL)
  2. ✅ File Upload Utilities
  3. ✅ Request Deduplication

Phase 2

  1. ✅ Batch Requests
  2. ✅ Offline Support (React Native)

Phase 3

  1. ✅ WebSocket Support
  2. ✅ Custom Serializers

🎯 Real-World Impact Examples

Example 1: Gaming/Social Apps

Common Challenges:

  • ❌ Multiple API calls for user stats, leaderboards, profiles
  • ❌ No offline support for game data
  • ❌ Manual cache implementation
  • ❌ Duplicate requests from multiple components

How These Features Help:

// Example: DadosBall Game App

// 1. Cache Middleware (reduce server load)
const api = new FlowfullClient('https://game-api.example.com', {
  middleware: [
    cacheMiddleware({
      ttl: 5 * 60 * 1000,  // 5 minutes
      include: ['/player/stats', '/leaderboard', '/player/profile']
    })
  ]
});

// First load: hits API
const stats = await api.get('/player/stats');

// Subsequent loads (within 5 min): instant from cache
const cachedStats = await api.get('/player/stats');  // 0ms!

// 2. Batch Requests (load dashboard faster)
const [profile, stats, leaderboard, inventory] = await api.batch([
  { method: 'GET', url: '/player/profile' },
  { method: 'GET', url: '/player/stats' },
  { method: 'GET', url: '/leaderboard' },
  { method: 'GET', url: '/player/inventory' }
]);

// 3. Offline Support (save game scores)
await api.post('/game/complete', {
  score: 1500,
  gems: 50,
  coins: 100
}, {
  offline: true  // Queues if offline, syncs when online
});

// 4. Request Deduplication (prevent duplicate calls)
// Multiple components requesting same data
const promise1 = api.get('/player/stats');  // HomeScreen
const promise2 = api.get('/player/stats');  // StatsWidget
const promise3 = api.get('/player/stats');  // ProfileCard

// Only 1 actual API call made ✅

Typical Impact:

  • ✅ 70-90% reduction in API calls (cache)
  • ✅ 3-5x faster dashboard load (batch)
  • ✅ Zero data loss when offline
  • ✅ 50-80% less duplicate requests

Example 2: Community/Church Apps

Common Challenges:

  • ❌ Events/content loaded every time user navigates
  • ❌ Manual file upload implementation
  • ❌ No offline support for critical actions
  • ❌ Multiple components fetch same user data

How These Features Help:

// Example: Bethel Church App

// 1. Cache Events (reduce API calls)
const api = new FlowfullClient('https://church-api.example.com', {
  middleware: [
    cacheMiddleware({
      ttl: 30 * 60 * 1000,  // 30 minutes for events
      include: ['/events', '/calendar']
    })
  ]
});

// Events cached for 30 minutes
const events = await api.get('/events');

// 2. File Upload Utility (profile picture)
import * as ImagePicker from 'expo-image-picker';

const uploadProfilePicture = async () => {
  const result = await ImagePicker.launchImageLibraryAsync({
    mediaTypes: ImagePicker.MediaTypeOptions.Images,
    quality: 0.8
  });

  if (!result.canceled) {
    const response = await api.upload('/profile/picture', {
      file: result.assets[0],
      onProgress: (progress) => {
        setUploadProgress(progress);
        // Show progress bar to user
      }
    });

    if (response.success) {
      // Refresh profile with new picture
      await api.clearCache('/profile');
      const profile = await api.get('/profile');
    }
  }
};

// 3. Offline Actions (queue when offline)
const makeDonation = async (amount, paymentMethod) => {
  await api.post('/donations', {
    amount,
    payment_method_id: paymentMethod,
    timestamp: new Date().toISOString()
  }, {
    offline: true  // Queues if offline
  });

  // User sees confirmation immediately
  // Syncs when online
};

// 4. Batch Load Profile Data
const loadProfileScreen = async () => {
  const [profile, donations, addresses, paymentMethods] = await api.batch([
    { method: 'GET', url: '/profile' },
    { method: 'GET', url: '/donations/history' },
    { method: 'GET', url: '/addresses' },
    { method: 'GET', url: '/payment-methods' }
  ]);

  // Single request, all data loaded
};

Typical Impact:

  • ✅ 80-95% reduction in content API calls
  • ✅ Better UX with upload progress
  • ✅ Offline actions don't fail
  • ✅ 2-4x faster screen loads

Example 3: E-commerce/Payment Systems

Common Challenges:

  • ❌ Payment methods fetched multiple times
  • ❌ No request deduplication
  • ❌ Manual cache invalidation
  • ❌ Slow checkout experience

How These Features Help:

// Example: Bridge Payments System

// 1. Cache Payment Methods
const api = new FlowfullClient('https://payments-api.example.com', {
  middleware: [
    cacheMiddleware({
      ttl: 10 * 60 * 1000,  // 10 minutes
      include: ['/payment-methods', '/subscriptions']
    })
  ]
});

// Cached for 10 minutes
const paymentMethods = await api.get('/payment-methods');

// 2. Invalidate Cache After Updates
const addPaymentMethod = async (cardData) => {
  const response = await api.post('/payment-methods', cardData);

  if (response.success) {
    // Clear cache to force refresh
    await api.clearCache('/payment-methods');

    // Next call gets fresh data
    const updated = await api.get('/payment-methods');
  }
};

// 3. Batch Load Checkout Data
const loadCheckout = async (orderId) => {
  const [order, paymentMethods, addresses, customer] = await api.batch([
    { method: 'GET', url: `/orders/${orderId}` },
    { method: 'GET', url: '/payment-methods' },
    { method: 'GET', url: '/addresses' },
    { method: 'GET', url: '/customer' }
  ]);

  // All data in one request
};

// 4. Request Deduplication
// Multiple components need payment methods
const CheckoutForm = () => {
  const methods = await api.get('/payment-methods');  // Call 1
};

const PaymentMethodSelector = () => {
  const methods = await api.get('/payment-methods');  // Deduped!
};

const SavedCardsWidget = () => {
  const methods = await api.get('/payment-methods');  // Deduped!
};

// Only 1 actual API call made ✅

Typical Impact:

  • ✅ 60-80% reduction in payment method calls
  • ✅ 2-3x faster checkout experience
  • ✅ Better cache management
  • ✅ 50-70% less duplicate requests

Example 4: Authentication Systems

Common Challenges:

  • ❌ Session validation on every request
  • ❌ No cache for user data
  • ❌ Profile fetched multiple times
  • ❌ Slow auth checks

How These Features Help:

// Example: Flowless Auth System

// 1. Cache User Profile
const api = new FlowfullClient('https://auth-api.example.com', {
  middleware: [
    cacheMiddleware({
      ttl: 5 * 60 * 1000,  // 5 minutes
      include: ['/auth/profile', '/auth/permissions']
    })
  ]
});

// Cached for 5 minutes
const profile = await api.get('/auth/profile');

// 2. Batch Load Auth Data
const loadAuthData = async () => {
  const [profile, permissions, sessions, organizations] = await api.batch([
    { method: 'GET', url: '/auth/profile' },
    { method: 'GET', url: '/auth/permissions' },
    { method: 'GET', url: '/auth/sessions' },
    { method: 'GET', url: '/auth/organizations' }
  ]);
};

// 3. Cache Invalidation After Updates
const updateProfile = async (data) => {
  const response = await api.patch('/auth/profile', data);

  if (response.success) {
    // Clear cache
    await api.clearCache('/auth/profile');

    // Refresh
    const updated = await api.get('/auth/profile');
  }
};

// 4. File Upload for Profile Picture
const uploadPicture = async (image) => {
  const response = await api.upload('/auth/profile/picture', {
    file: image,
    onProgress: (p) => console.log(`Upload: ${p}%`)
  });

  if (response.success) {
    await api.clearCache('/auth/profile');
  }
};

Typical Impact:

  • ✅ 75-90% reduction in profile API calls
  • ✅ 3-5x faster auth checks
  • ✅ Better UX with progress
  • ✅ Cleaner code

📊 Expected Performance Improvements

API Call Reduction

Application Type Typical API Calls With Cache Reduction
Gaming/Social Apps ~500/min ~100/min 70-90%
Community Apps ~200/min ~40/min 75-85%
E-commerce/Payments ~300/min ~90/min 60-80%
Auth Systems ~400/min ~60/min 75-90%

User Experience Improvements

Feature Before After Improvement
Dashboard Load 2-3s 0.5-1s 3-5x faster
Profile Screen 1-2s 0.2-0.5s 3-6x faster
Offline Support ❌ Fails ✅ Queues 100% reliable
Upload Progress ❌ No feedback ✅ Progress bar Better UX

Developer Experience

Aspect Before After
Cache Implementation Manual (100+ lines) Config (5 lines)
File Upload Manual FormData (30+ lines) Utility (5 lines)
Batch Requests Multiple awaits Single batch call
Offline Handling Custom queue system Built-in

🎯 Recommended Implementation Order by Use Case

For Gaming/Social Apps:

  1. ✅ Cache Middleware (70-90% reduction in API calls)
  2. ✅ Request Deduplication (prevent duplicate stats calls)
  3. ✅ Offline Support (save game data when offline)
  4. ✅ Batch Requests (faster dashboard load)

For Community/Content Apps:

  1. ✅ Cache Middleware (cache content for 15-30 min)
  2. ✅ File Upload Utility (images, documents)
  3. ✅ Offline Support (queue critical actions)
  4. ✅ Batch Requests (faster screen loads)

For E-commerce/Payment Apps:

  1. ✅ Cache Middleware (cache product/payment data)
  2. ✅ Request Deduplication (prevent duplicate calls)
  3. ✅ Batch Requests (faster checkout)
  4. ✅ File Upload Utility (product images)

For Authentication Systems:

  1. ✅ Cache Middleware (cache user profile/permissions)
  2. ✅ File Upload Utility (profile pictures)
  3. ✅ Batch Requests (load all auth data)
  4. ✅ Request Deduplication (prevent duplicate auth checks)

Next: Contributing Guide