from fastapi import FastAPI import mariadb app = FastAPI() @app.get("/api/portfolio") def read_portfolio():   try:     conn = mariadb.connect(       user="root",       password="motdepasse",       host="localhost",       port=3306,       database="portfolio"     )     cursor = conn.cursor()     cursor.execute("SELECT * FROM portfolio;")     result = cursor.fetchall()     conn.close()     return {"data": result}   except mariadb.Error as e:     return {"error": str(e)}