I need to share/send files via slack. I created an app, and I can send message successfully, but I can send files
This is my code
var client1 = new SlackClient("https://hooks.slack.com/services/XXXXXXXXXXXXXX");
        var slackMessage = new SlackMessage
        {
            Channel = "#test",
            Text = "test",
            IconEmoji = Slack.Webhooks.Emoji.Octocat,                
        };
         client1.Post(slackMessage);
Thank you for your help