[add]: Database config

app/salary_analytics/services/data_loader.py

@@ -7,7 +7,7 @@ import pandas as pd
 from datetime import datetime
 import logging
 import os
-from app.config import DB_CONFIG, TABLE_NAME
+from app.config import SQLALCHEMY_DATABASE_URI, TABLE_NAME
 from app.utils.logger import logger
 
 class DataLoader:
@@ -20,8 +20,7 @@ class DataLoader:
         """Establish database connection."""
         try:
             logger.info("Attempting to connect to database...")
-            DATABASE_URL = f"postgresql://{DB_CONFIG['user']}:{DB_CONFIG['password']}@{DB_CONFIG['host']}:{DB_CONFIG['port']}/{DB_CONFIG['name']}"
-            self.engine = create_engine(DATABASE_URL)
+            self.engine = create_engine(SQLALCHEMY_DATABASE_URI)
             with self.engine.connect() as conn:
                 # First check if table exists
                 check_table = text(f"SELECT EXISTS (SELECT FROM information_schema.tables WHERE table_name = '{TABLE_NAME}')")