We have created the Database, yet it’s still completely empty. In order to test it against our existing application, it will be useful to find an easy way of adding some sample data programmatically.
In the most recent Entity Framework versions, up to and including EF6, it was possible to do that using the DbMigrationsConfiguration.Seed() method. Unfortunately, though, migrations configuration doesn’t exist in EF Core; this seems to be more of an implementation choice than a lack of features, since the seeding task can now be performed directly within the Startup.cs file.
Note
If you're interested in reading the discussion leading to that conclusion, we strongly suggest you take a look at the following URL, pointing to the issue #3070 of the Entity Framework Core repository on GitHub:https://github.com/aspnet/EntityFramework/issues/3070
Although this is definitely true, there is still some controversy going on between the EF Core developers community regarding...