abp/framework/src/Volo.Abp.MultiTenancy/Volo/Abp/MultiTenancy/CurrentTenantExtensions.cs

using System;
using JetBrains.Annotations;

namespace Volo.Abp.MultiTenancy
{
    public static class CurrentTenantExtensions
    {
        public static Guid GetId([NotNull] this ICurrentTenant currentTenant)
        {
            Check.NotNull(currentTenant, nameof(currentTenant));

            if (currentTenant.Id == null)
            {
                throw new AbpException("Current Tenant Id is not available!");
            }

            return currentTenant.Id.Value;
        }

        public static MultiTenancySides GetMultiTenancySide(this ICurrentTenant currentTenant)
        {
            return currentTenant.Id.HasValue
                ? MultiTenancySides.Tenant
                : MultiTenancySides.Host;
        }
    }
}