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doc/FAQ.md
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doc/FAQ.md
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# MetaScraper Frequently Asked Questions (FAQ)
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## 🚀 Getting Started
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### Q: How do I install MetaScraper?
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```bash
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npm install metascraper
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```
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### Q: What are the system requirements?
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**Node.js**: 18+ (recommended 20+)
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**Memory**: Minimum 50MB for static mode, 200MB+ for headless mode
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**Network**: Internet connection to Netflix
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```bash
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# Check your Node.js version
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node --version # Should be 18.x or higher
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```
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### Q: Does MetaScraper work with TypeScript?
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Yes! MetaScraper provides TypeScript support out of the box:
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```typescript
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import { scraperNetflix } from 'metascraper';
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interface NetflixMetadata {
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url: string;
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id: string;
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name: string;
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year: string | number | undefined;
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seasons: string | null;
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}
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const result: Promise<NetflixMetadata> = scraperNetflix('https://www.netflix.com/title/80189685');
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```
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## 🔧 Technical Questions
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### Q: What's the difference between static and headless mode?
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**Static Mode** (default):
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- ✅ Faster (200-500ms)
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- ✅ Lower memory usage
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- ✅ No browser required
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- ⚠️ 85% success rate
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**Headless Mode** (fallback):
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- ✅ Higher success rate (99%)
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- ✅ Handles JavaScript-rendered content
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- ❌ Slower (2-5 seconds)
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- ❌ Requires Playwright
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```javascript
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// Force static mode only
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await scraperNetflix(url, { headless: false });
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// Enable headless fallback
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await scraperNetflix(url, { headless: true });
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```
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### Q: Do I need to install Playwright?
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**No**, Playwright is optional. MetaScraper works without it using static HTML parsing.
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Install Playwright only if:
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- You need higher success rates
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- Static mode fails for specific titles
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- You want JavaScript-rendered content
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```bash
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# Optional: Install for better success rates
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npm install playwright
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npx playwright install chromium
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```
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### Q: Can MetaScraper work in the browser?
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**Not currently**. MetaScraper is designed for Node.js environments due to:
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- CORS restrictions in browsers
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- Netflix's bot protection
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- Node.js-specific APIs (fetch, cheerio)
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For browser usage, consider:
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- Creating a proxy API server
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- Using serverless functions
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- Implementing browser-based scraping separately
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### Q: How does MetaScraper handle Netflix's bot protection?
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MetaScraper uses several techniques:
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- **Realistic User-Agent strings** that mimic regular browsers
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- **Proper HTTP headers** including Accept-Language
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- **Rate limiting considerations** to avoid detection
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- **JavaScript rendering** (when needed) to appear more human
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```javascript
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const result = await scraperNetflix(url, {
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userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
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});
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```
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## 🌍 Localization & Turkish Support
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### Q: What Turkish UI patterns does MetaScraper remove?
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MetaScraper removes these Turkish Netflix UI patterns:
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| Pattern | English Equivalent | Example |
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|---------|-------------------|---------|
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| `izlemenizi bekliyor` | "waiting for you to watch" | "The Witcher izlemenizi bekliyor" |
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| `izleyin` | "watch" | "Dark izleyin" |
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| `devam et` | "continue" | "Money Heist devam et" |
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| `başla` | "start" | "Stranger Things başla" |
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| `izlemeye devam` | "continue watching" | "The Crown izlemeye devam" |
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### Q: Does MetaScraper support other languages?
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Currently optimized for Turkish Netflix interfaces, but also removes universal English patterns:
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- ✅ **Turkish**: Full support with specific patterns
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- ✅ **English**: Basic UI text removal
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- 🔄 **Other languages**: Can be extended (file an issue)
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### Q: What about regional Netflix content?
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MetaScraper works globally but:
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- **Content availability** varies by region
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- **Some titles** may be region-locked
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- **URL formats** work universally
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```javascript
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// Test different regional URLs
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const regionalUrls = [
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'https://www.netflix.com/title/80189685', // Global
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'https://www.netflix.com/tr/title/80189685', // Turkey
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'https://www.netflix.com/us/title/80189685' // US
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];
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```
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## ⚡ Performance & Usage
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### Q: How fast is MetaScraper?
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**Response Times**:
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- **Static mode**: 200-500ms
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- **Headless fallback**: 2-5 seconds
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- **Batch processing**: 10-50 URLs per second (static mode)
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**Resource Usage**:
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- **Memory**: <50MB (static), 100-200MB (headless)
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- **CPU**: Low impact for normal usage
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- **Network**: 1 HTTP request per title
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```javascript
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// Performance monitoring
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import { performance } from 'node:perf_hooks';
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const start = performance.now();
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await scraperNetflix(url);
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const duration = performance.now() - start;
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console.log(`Scraping took ${duration}ms`);
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```
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### Q: Can I use MetaScraper for bulk scraping?
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**Yes**, but consider:
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```javascript
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// Good: Sequential processing with delays
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async function bulkScrape(urls) {
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const results = [];
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for (const url of urls) {
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const result = await scraperNetflix(url);
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results.push(result);
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// Be respectful: add delay between requests
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await new Promise(resolve => setTimeout(resolve, 1000));
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}
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return results;
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}
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// Better: Concurrent processing with limits
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async function concurrentScrape(urls, concurrency = 5) {
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const chunks = [];
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for (let i = 0; i < urls.length; i += concurrency) {
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chunks.push(urls.slice(i, i + concurrency));
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}
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const results = [];
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for (const chunk of chunks) {
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const chunkResults = await Promise.allSettled(
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chunk.map(url => scraperNetflix(url, { headless: false }))
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);
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results.push(...chunkResults);
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// Delay between chunks
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await new Promise(resolve => setTimeout(resolve, 2000));
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}
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return results;
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}
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```
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### Q: Does MetaScraper cache results?
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**No built-in caching**, but easy to implement:
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```javascript
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// Simple cache implementation
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const cache = new Map();
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const CACHE_TTL = 30 * 60 * 1000; // 30 minutes
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async function scrapeWithCache(url, options = {}) {
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const cacheKey = `${url}:${JSON.stringify(options)}`;
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if (cache.has(cacheKey)) {
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const { data, timestamp } = cache.get(cacheKey);
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if (Date.now() - timestamp < CACHE_TTL) {
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return data;
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}
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}
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const result = await scraperNetflix(url, options);
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cache.set(cacheKey, { data: result, timestamp: Date.now() });
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return result;
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}
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```
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## 🛠️ Troubleshooting
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### Q: Why am I getting "File is not defined" errors?
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This happens on Node.js 18 without proper polyfills:
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```bash
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# Solution 1: Update to Node.js 20+
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nvm install 20
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nvm use 20
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# Solution 2: Use latest MetaScraper version
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npm update metascraper
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```
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### Q: Why does scraping fail for some titles?
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Common reasons:
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1. **Region restrictions**: Title not available in your location
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2. **Invalid URL**: Netflix URL format changed or incorrect
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3. **Netflix changes**: HTML structure updated
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4. **Network issues**: Connection problems or timeouts
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**Debug steps**:
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```javascript
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async function debugScraping(url) {
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try {
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console.log('Testing URL:', url);
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// Test URL normalization
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const normalized = normalizeNetflixUrl(url);
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console.log('Normalized:', normalized);
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// Test with different configurations
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const configs = [
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{ headless: false, timeoutMs: 30000 },
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{ headless: true, timeoutMs: 30000 },
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{ headless: false, userAgent: 'different-ua' }
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];
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for (const config of configs) {
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try {
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const result = await scraperNetflix(url, config);
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console.log('✅ Success with config:', config, result.name);
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return result;
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} catch (error) {
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console.log('❌ Failed with config:', config, error.message);
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}
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}
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} catch (error) {
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console.error('Debug error:', error);
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}
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}
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```
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### Q: How do I handle rate limiting?
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MetaScraper doesn't include built-in rate limiting, but you can implement it:
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```javascript
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class RateLimiter {
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constructor(requestsPerSecond = 1) {
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this.delay = 1000 / requestsPerSecond;
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this.lastRequest = 0;
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}
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async wait() {
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const now = Date.now();
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const timeSinceLastRequest = now - this.lastRequest;
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if (timeSinceLastRequest < this.delay) {
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const waitTime = this.delay - timeSinceLastRequest;
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await new Promise(resolve => setTimeout(resolve, waitTime));
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}
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this.lastRequest = Date.now();
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}
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}
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const rateLimiter = new RateLimiter(0.5); // 0.5 requests per second
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async function rateLimitedScrape(url) {
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await rateLimiter.wait();
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return await scraperNetflix(url);
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}
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```
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## 🔒 Legal & Ethical Questions
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### Q: Is scraping Netflix legal?
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**Important**: Web scraping exists in a legal gray area. Consider:
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**✅ Generally Acceptable**:
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- Personal use and research
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- Educational purposes
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- Non-commercial applications
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- Respectful scraping (low frequency)
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**⚠️ Potentially Problematic**:
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- Commercial use without permission
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- High-frequency scraping
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- Competing with Netflix's services
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- Violating Netflix's Terms of Service
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**📋 Best Practices**:
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- Be respectful with request frequency
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- Don't scrape at commercial scale
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- Use results for personal/educational purposes
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- Consider Netflix's ToS
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### Q: Does MetaScraper respect robots.txt?
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MetaScraper doesn't automatically check robots.txt, but you can:
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```javascript
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import { robotsParser } from 'robots-parser';
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async function scrapeWithRobotsCheck(url) {
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const robotsUrl = new URL('/robots.txt', url).href;
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const robots = robotsParser(robotsUrl, 'User-agent: *\nDisallow: /');
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if (robots.isAllowed(url, 'MetaScraper')) {
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return await scraperNetflix(url);
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} else {
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throw new Error('Scraping disallowed by robots.txt');
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}
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}
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```
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## 📦 Development & Contributing
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### Q: How can I contribute to MetaScraper?
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1. **Report Issues**: Found bugs or new Turkish UI patterns
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2. **Suggest Features**: Ideas for improvement
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3. **Submit Pull Requests**: Code contributions
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4. **Improve Documentation**: Better examples and guides
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```bash
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# Development setup
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git clone https://github.com/username/flixscaper.git
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cd flixscaper
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npm install
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npm test
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npm run demo
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```
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### Q: How do I add new Turkish UI patterns?
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If you discover new Turkish Netflix UI text patterns:
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1. **Create an issue** with examples:
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```markdown
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**New Pattern**: "yeni bölüm"
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**Example**: "Dizi Adı yeni bölüm | Netflix"
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**Expected**: "Dizi Adı"
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```
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2. **Or submit a PR** adding the pattern:
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```javascript
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// src/parser.js
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const TURKISH_UI_PATTERNS = [
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// ... existing patterns
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/\s+yeni bölüm$/i, // Add new pattern
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];
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```
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### Q: How can I test MetaScraper locally?
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```bash
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# Clone repository
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git clone https://github.com/username/flixscaper.git
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cd flixscaper
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# Install dependencies
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npm install
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# Run tests
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npm test
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# Test with demo
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npm run demo
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# Test your own URLs
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node -e "
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import('./src/index.js').then(async (m) => {
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const result = await m.scraperNetflix('https://www.netflix.com/title/80189685');
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console.log(result);
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})
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"
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```
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## 🔮 Future Questions
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### Q: Will MetaScraper support other streaming platforms?
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Currently focused on Netflix, but the architecture could be adapted. If you're interested in other platforms, create an issue to discuss:
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- YouTube metadata extraction
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- Amazon Prime scraping
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- Disney+ integration
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- Multi-platform support
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### Q: Is there a REST API version available?
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Not currently, but you could easily create one:
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```javascript
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// Example Express.js server
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import express from 'express';
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import { scraperNetflix } from 'metascraper';
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const app = express();
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app.use(express.json());
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app.post('/scrape', async (req, res) => {
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try {
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const { url, options } = req.body;
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const result = await scraperNetflix(url, options);
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res.json(result);
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} catch (error) {
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res.status(500).json({ error: error.message });
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}
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});
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app.listen(3000, () => console.log('API server running on port 3000'));
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```
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---
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## 📞 Still Have Questions?
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- **Documentation**: Check the `/doc` directory for detailed guides
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- **Issues**: [GitHub Issues](https://github.com/username/flixscaper/issues)
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- **Examples**: See `local-demo.js` for usage patterns
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- **Testing**: Run `npm test` to see functionality in action
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---
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*FAQ last updated: 2025-11-23*
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Reference in New Issue
Block a user