var handler = new HttpClientHandler { #if NET48_OR_GREATER || NET5_0_OR_GREATER SslProtocols = System.Security.Authentication.SslProtocols.Tls12 | System.Security.Authentication.SslProtocols.Tls13, #else SslProtocols = System.Security.Authentication.SslProtocols.Tls | System.Security.Authentication.SslProtocols.Tls11 | System.Security.Authentication.SslProtocols.Tls12 | System.Security.Authentication.SslProtocols.Ssl3, #endif #if DEBUG AutomaticDecompression = System.Net.DecompressionMethods.None, #elif NETFRAMEWORK || NETSTANDARD AutomaticDecompression = System.Net.DecompressionMethods.GZip | System.Net.DecompressionMethods.Deflate, #else AutomaticDecompression = System.Net.DecompressionMethods.All, #endif };