use sqlite instead of SQL

apps/backend/app/database.py

@@ -1,35 +1,22 @@
-from sqlalchemy import create_engine
-from sqlalchemy.orm import sessionmaker
-from sqlalchemy.orm import declarative_base
-
-from dotenv import load_dotenv
 import os
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, declarative_base
 
-load_dotenv()
+DB_DIR = os.getenv("DATA_DIR", os.path.abspath("../../data"))
+os.makedirs(DB_DIR, exist_ok=True)
 
-DATABASE_URL = (
-    f"mysql+pymysql://"
-    f"{os.getenv('DB_USER')}:"
-    f"{os.getenv('DB_PASSWORD')}@"
-    f"{os.getenv('DB_HOST')}:"
-    f"{os.getenv('DB_PORT')}/"
-    f"{os.getenv('DB_NAME')}"
-)
+DB_PATH = os.path.join(DB_DIR, "portfolio.db")
+SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_PATH}"
 
 engine = create_engine(
-    DATABASE_URL,
-    pool_pre_ping=True
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}
 )
 
-SessionLocal = sessionmaker(
-    autocommit=False,
-    autoflush=False,
-    bind=engine
-)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 
 Base = declarative_base()
 
-
 def get_db():
     db = SessionLocal()
     try:

apps/backend/app/main.py

@@ -2,6 +2,8 @@ from fastapi import FastAPI
 
 from app.routers import projects, experiences, skills
 
+models.Base.metadata.create_all(bind=engine)
+
 app = FastAPI()
 
 app.include_router(projects.router, prefix="/api")

apps/backend/requirements.txt

@@ -1,5 +1,4 @@
 fastapi
 uvicorn[standard]
 sqlalchemy
-pymysql
 python-dotenv