Update code in endpoints/d.post.py

endpoints/d.post.py

@@ -0,0 +1,31 @@
+from fastapi import APIRouter, Depends, HTTPException
+from core.database import fake_users_db
+from typing import List
+
+router = APIRouter()
+
+# Demo database of countries
+countries_db = {
+    "denmark": {"name": "Denmark", "capital": "Copenhagen", "population": 5831000},
+    "djibouti": {"name": "Djibouti", "capital": "Djibouti", "population": 988000},
+    "dominica": {"name": "Dominica", "capital": "Roseau", "population": 71986},
+    "dominican_republic": {"name": "Dominican Republic", "capital": "Santo Domingo", "population": 10847910}
+}
+
+@router.post("/d")
+async def get_d_countries():
+    """Get all countries that start with the letter D"""
+    d_countries = {k: v for k, v in countries_db.items() if k.startswith('d')}
+    
+    if not d_countries:
+        raise HTTPException(status_code=404, detail="No countries found starting with 'D'")
+    
+    return {
+        "message": "Countries retrieved successfully",
+        "data": d_countries,
+        "metadata": {
+            "count": len(d_countries),
+            "starting_letter": "D",
+            "source": "demo_countries_db"
+        }
+    }