Add assets for the Automated Amazon Price Tracking article

examples/automated_price_tracking/notifications.py

@@ -0,0 +1,36 @@
+from dotenv import load_dotenv
+import os
+import aiohttp
+import asyncio
+
+load_dotenv()
+
+
+async def send_price_alert(
+    product_name: str, old_price: float, new_price: float, url: str
+):
+    """Send a price drop alert to Discord"""
+    drop_percentage = ((old_price - new_price) / old_price) * 100
+
+    message = {
+        "embeds": [
+            {
+                "title": "Price Drop Alert! 🎉",
+                "description": f"**{product_name}**\nPrice dropped by {drop_percentage:.1f}%!\n"
+                f"Old price: ${old_price:.2f}\n"
+                f"New price: ${new_price:.2f}\n"
+                f"[View Product]({url})",
+                "color": 3066993,
+            }
+        ]
+    }
+
+    try:
+        async with aiohttp.ClientSession() as session:
+            await session.post(os.getenv("DISCORD_WEBHOOK_URL"), json=message)
+    except Exception as e:
+        print(f"Error sending Discord notification: {e}")
+
+
+if __name__ == "__main__":
+    asyncio.run(send_price_alert("Test Product", 100, 90, "https://www.google.com"))