public static IServiceCollection AddAmazonS3StorageManager(this IServiceCollection services, AmazonOptions options)
        {
            services.AddSingleton <IFileStorageManager>(new AmazonS3StorageManager(options));

            return(services);
        }
        public static IServiceCollection AddAmazonS3StorageManager(this IServiceCollection services, AmazonOptions options)
        {
            services.AddSingleton <IFileStorageManager>(new AmazonS3StorageManager(
                                                            options.AccessKeyID,
                                                            options.SecretAccessKey,
                                                            options.BucketName,
                                                            options.RegionEndpoint));

            return(services);
        }