PK stored in secret env

crypto/sol/app.py

@@ -38,6 +38,9 @@ import re
 from typing import List, Dict, Any, Tuple
 
 load_dotenv()
+# Load secret environment variables
+load_dotenv('.env.secret')
+
 app = Flask(__name__)
 
 ENV_FILE = '.env'
@@ -773,7 +776,12 @@ async def follow_move(move):
 
     if your_balance >= amount_to_swap:
         try:
-            private_key = Keypair.from_bytes(base58.b58decode(os.getenv("PK")))
+            pk_b58 = os.getenv("PK")
+            if not pk_b58:
+                logging.error("Private key not found. Can not sign transactions without private key.")
+                return
+            
+            private_key = Keypair.from_bytes(base58.b58decode(pk_b58))
             async_client = AsyncClient(SOLANA_WS_URL)
             jupiter = Jupiter(async_client, private_key)