ApplicationDbContext.cs

using Microsoft.EntityFrameworkCore;

namespace SieveTests.Entities
{
    public class ApplicationDbContext : DbContext
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options) { }

        public DbSet<Post> Posts { get; set; }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
        }
    }
}