Credentials configures postgres with username and password.

DbName configures postgres with a database name.

HostAndPort configures postgres with hostname and port number.

MigrateDB applies the database migrations into the supplied DB.

NewDb returns a new database access object for a postgres database, from a set of configuration options.

NewTodosRepository creates a new Todos repository backed by a Postgres db.

SslDisabled configures postgres to not enable SSL.

TodosRepository is a postgres implementation of a base todos.TodosRepository.

ConfigOption represents a function to configure the postgres connection.