juipnet/Infrastructure/ServiceClient/MsgCenterClient/IServiceCollectionExtension.cs

using Microsoft.Extensions.DependencyInjection;

namespace MsgCenterClient
{
    public static class IServiceCollectionExtension
    {
        public static void AddMsgCenterClient(this IServiceCollection service, string baseUrl)
        {
            MsgCenterHttpClient._BaseUrl = baseUrl;

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