i'm sorry guys it's stupid commit...

SurveyBackend/SurveyBackend.API/Controllers/CompletionController.cs

@@ -0,0 +1,48 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using SurveyBackend.Contexts;
+using SurveyBackend.Core.Contexts;
+using SurveyBackend.DTOs.Completion;
+using SurveyBackend.Mappers;
+using SurveyLib.Core.Models;
+using SurveyLib.Core.Services;
+
+namespace SurveyBackend.Controllers;
+
+[ApiController]
+[Route("api/surveys/{surveyId:int}/completions")]
+public class CompletionController : ControllerBase
+{
+    private readonly ICompletionService _completionService;
+    private readonly IUserContext _userContext;
+
+    public CompletionController(ICompletionService completionService, IUserContext userContext)
+    {
+        _completionService = completionService;
+        _userContext = userContext;
+    }
+
+    [HttpGet]
+    [Authorize]
+    public async Task<IActionResult> GetCompletionsAsync(int surveyId)
+    {
+        return NotFound();
+    }
+
+    [HttpGet("{id:int}")]
+    [Authorize]
+    public async Task<IActionResult> GetCompletionAsync(int id)
+    {
+        return NotFound();
+    }
+
+    [HttpPost]
+    [AllowAnonymous]
+    public async Task<IActionResult> PostCompletionAsync([FromBody] CompletionCreateDto dto, [FromRoute] int surveyId)
+    {
+        var userId = _userContext.NullableUserId;
+        var model = CompletionMapper.CreateDtoToModel(dto, surveyId, userId);
+        await _completionService.AddCompletionAsync(model);
+        return Ok();
+    }
+}