We saw how we can build a REST API in Swift using the Vapor framework; however, this is of limited use on its own. To provide real utility, we need to store and retrieve our model so that it persists beyond the lifetime of the server.
A common approach is to use a relational database such as SQLite, MySql or Postgres, and Vapor, with support for a number of databases through the included Fluent framework.
In this recipe, we will build on the REST API for tasks from the last recipe, and persist our model to a Postgres database. We'll choose Postgres because it is a popular relational database for which there is great support in Heroku, a hosting service we will use in the next recipe.
