andrewlock

public void ConfigureServices(IServiceCollection services)  
{
    var connectionString = Configuration["ApplicationDbContext:ConnectionString"];
    services.AddDbContext<ApplicationDbContext>(
        opts => opts.UseNpgsql(connectionString)
    );

    services.Configure<MultitenancyOptions>(  
        options =>
        {

andrewlock

public class UserService
{
  private readonly IUserRepo _repo;
  
  public UserService(IUserRepo repo)
  {
    _repo = repo;
  }
  
  public async Task<bool> DoesUserExist(int userId)