Initial commit -- just started to factor and implement python fast API backend

backend/database.py

@@ -0,0 +1,24 @@
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+import os
+
+# Use an environment variable for the DB path, or default to local dashy.db
+# On CIFS mounts, SQLite locking will fail, so we recommend a local path.
+DB_PATH = os.getenv("DASHY_DB_PATH", "./dashy.db")
+SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_PATH}"
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False, "timeout": 30}
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+Base = declarative_base()
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()