View Source Ecto.Repo behaviour (Ecto v3.12.4) Defines a repository. A repository maps to an underlying data store, controlled by the adapter. For example, Ecto ships with a Postgres adapter that stores data into a PostgreSQL database. When used, the repository expects the :otp_app and :adapter as option. The :otp_app should point to an OTP application that has the repository configuration. For ex