upd

Strela/Controllers/DeviceController.cs

@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
 using Strela.Models;
 using Strela.Services;
 
@@ -66,4 +67,17 @@ public class DeviceController : ControllerBase
             return Created();
         }
     }
+
+    //========================= DELETE ====================================//
+    [HttpDelete("DelType")]
+    public IActionResult DelType(int id)
+    {
+        using (var db = new SQLiteService())
+        {
+            var deldev = db.DeviceTypes.Where(u => u.Id == id).FirstOrDefault();
+            db.DeviceTypes.Remove(deldev);
+            db.SaveChanges();
+            return Ok();
+        }
+    }
 }