fix extension and downloading

src/api/api_v1/endpoints/main.py

@@ -11,7 +11,6 @@ from src.exceptions.download_exceptions import SiteNotImplementedException
 
 main_router = APIRouter()
 
-
 templates = Jinja2Templates(directory="templates")
 
 
@@ -25,12 +24,14 @@ async def get_url_for_download_video(request: Request, link: str = Form(...)):
     file_name = VideoDownloader.get_unique_video_filename()
     ydl_opts = {
         "forceurl": True,
-                'outtmpl': f'downloads/%(extractor_key)s/{file_name}.%(ext)s'
+        "format": "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best",
+        "merge_output_format": "mp4",
+        'outtmpl': f'downloads/%(extractor_key)s/{file_name}.%(ext)s',
     }
     downloader = VideoDownloader(link=link, ydl_opts=ydl_opts)
     try:
         result = downloader.download()
-        link_to_download_video = str(request.base_url) + f"{file_name}.{result['formats'][-1]['ext']}"
+        link_to_download_video = str(request.base_url) + f"{file_name}.{result['ext']}"
     except SiteNotImplementedException as ex:
         raise HTTPException(
             status_code=400,
@@ -44,4 +45,4 @@ async def download_video(file_path):
     base = os.path.dirname(os.path.dirname(os.path.abspath(file_path)))
     base_download_dir = os.path.join(base, "src", "downloads")
     youtube_dir = os.path.join(base_download_dir, "Youtube")
-    return FileResponse(youtube_dir + f'/{file_path}', media_type="multipart/form-data")
+    return FileResponse(youtube_dir + f'/{file_path}', media_type="video")

src/templates/index.html

@@ -77,7 +77,7 @@
     <div class="col">
         <p> Ссылка для скачивания:</p>
         <br>
-        <a id="result" href=""></a>
+        <a id="result" href="" download></a>
         <div class="loader">
             <div class="loader_inner"></div>
         </div>