juipnet/Infrastructure/ServiceClient/BaseInfoClient/IServiceCollectionExtension.cs

using Microsoft.Extensions.DependencyInjection;

namespace ServiceClient
{
    public static class IServiceCollectionExtension
    {
        public static void AddBaseInfoClient(this IServiceCollection service, string baseUrl)
        {
            BaseInfoHttpClient._BaseUrl = baseUrl;

            service.AddSingleton<BaseInfoHttpClient>();
        }
    }
}