fast api crud 만들기

# create
user = User(
		name="kim",
            age=1)
db.add(user)
db.commit()
db.refresh(user)
     
# read
user_list = db.query(User)

# update
db_user = db.get(User, user.id)
user_data = user.dict(exclude_unset=True)
for key, value in user_data.items():
    setattr(db_user, key, value)
db.add(db_user)
db.commit()
db.refresh(db_user)
        
# delete
db.query(User).delete()
db.commit()