Once you have chosen your database, you need to define a path of where it will be stored. You can use 3 slashes /// - means to a relative path or 4 slashes //// is an absolute path. I will go from the root directory of the project.

In the main.py file:

Then, we need to call SQLAlchemy and pop in app to link that application and database together.

Now, we are going to design our database. If you are familiar with Model-View-Controller (please follow the article). Models are a way to structure the data in your database. Imagine that in our database. We need to have a table recipe with different fields such as title, author, description, date, and others.