Rename folder name for NSTProxy integration examples for crawl4ai

docs/examples/nst_proxy/auth_proxy_example.py

@@ -0,0 +1,31 @@
+"""
+NSTProxy Integration Examples for crawl4ai
+------------------------------------------
+
+NSTProxy is a premium residential proxy provider.
+👉 Purchase Proxies: https://nstproxy.com
+💰 Use coupon code "crawl4ai" for 10% off your plan.
+
+"""
+import asyncio
+from crawl4ai import AsyncWebCrawler, BrowserConfig
+
+
+async def main():
+    """
+    Example: Use NSTProxy with manual username/password authentication.
+    """
+
+    browser_config = BrowserConfig(proxy_config={
+        "server": "http://gate.nstproxy.io:24125",
+        "username": "your_username",
+        "password": "your_password",
+    })
+
+    async with AsyncWebCrawler(config=browser_config) as crawler:
+        result = await crawler.arun(url="https://example.com")
+        print("[Auth Proxy] Status:", result.status_code)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())