some fix

Controllers/DeletePost.cs

@@ -0,0 +1,19 @@
+using Microsoft.AspNetCore.Mvc;
+using System.Data;
+using System.Text.Json;
+
+namespace NeDvachAPI.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class DeletePostController : ControllerBase
+    {
+        [HttpDelete("{id}")]
+        public JsonResult Get(string id)
+        {
+            DBchat.DeletePost(id);
+            return new JsonResult("Deleted Successfully!");
+
+        }
+    }
+}

Controllers/GetPosts.cs

@@ -12,8 +12,10 @@ namespace NeDvachAPI.Controllers
         {
             Post[] posts  = DBchat.DbList();
             string postsJson = JsonSerializer.Serialize(posts);
+            Console.WriteLine("Запрошен список постов.");
             return postsJson ;
 
+
         }
     }
 }

Controllers/PostPost.cs

@@ -8,9 +8,11 @@ namespace NeDvachAPI.Controllers
     public class PostToController : ControllerBase
     {
         [HttpPost(Name = "PostPosts")]
-        public void ReceivePost([FromBody] Post ReceivedPost)
+        public JsonResult ReceivePost([FromBody] Post ReceivedPost)
         {
+            Console.WriteLine("Принят пост");
             DBchat.SendPost(ReceivedPost);
+            return new JsonResult("Posted Successfully!");
         }
     }
 }

Controllers/TestPosting.cs

@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Mvc;
+using System.Net;
 using System.Text.Json;
 
 namespace NeDvachAPI.Controllers
@@ -8,10 +9,11 @@ namespace NeDvachAPI.Controllers
     public class TestPostingController : ControllerBase
     {
         [HttpPost]
-        public int Area(int altitude , int height)
+        public int Area([FromForm] int height , int altitude)
         {
             //DBchat.SendPost(ReceivedPost);
-            return altitude+height;
+            Console.WriteLine("Received! " + height + " " + altitude );
+            return 200;
         }
     }
 }