setup assisant bot

api/dependencies/auth.py

@@ -0,0 +1,25 @@
+from fastapi import HTTPException, Depends, Security
+from fastapi.security import APIKeyHeader
+from api.models.requests import BaseRequest
+from config import Config
+
+api_key_header = APIKeyHeader(name="Authorization", auto_error=False)
+
+async def get_api_key(api_key_header: str = Security(api_key_header)) -> str:
+    """Validate API key from header"""
+    if not api_key_header or not api_key_header.startswith('Bearer '):
+        raise HTTPException(
+            status_code=401,
+            detail={"error": "Unauthorized", "message": "API key is missing or invalid."}
+        )
+    
+    token = api_key_header.split(' ')[1]
+    
+    if token != Config.API_KEY:
+        raise HTTPException(
+            status_code=401,
+            detail={"error": "Unauthorized", "message": "API key does not match."}
+        )
+    
+    return token
+