Should you build your own Trendyol scraper?
Writing a scraper from scratch means fetching Trendyol pages, parsing the HTML or intercepting the underlying JSON calls the storefront makes, handling pagination, and dealing with anti-bot measures and layout changes. It's the most flexible option — you control exactly what gets extracted — but it's also the most work, and it stays work: any storefront change can quietly break your parser, and you're responsible for proxies and retry logic to keep success rates up.
This approach makes sense when your data needs are extremely narrow and stable, or when you specifically want full control over the fetch layer for reasons outside normal scraping — otherwise the ongoing maintenance cost usually outweighs the flexibility gained.