first commit

services/csharp/example/Controllers/SecureController.cs

@@ -0,0 +1,12 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace SequenceAuth.Example.Controllers;
+
+public class SecureController : ApiControllerBase
+{
+    [HttpGet]
+    public IActionResult GetData()
+    {
+        return Ok(new { Message = "This is protected data. You must have a valid sequence to see this." });
+    }
+}