Update app.py

app.py

@@ -176,6 +176,9 @@ async def ig_post_detail(post_id: Optional[str] = None, url: Optional[str] = Non
 async def fb_post_detail(username: Optional[str] = None, post_id: Optional[str] = None, url: Optional[str] = None):
     if not url:
         url = f"https://www.facebook.com/{username}/posts/{post_id}"
+    else:
+        username = url.split("//www.facebook.com/",1)[-1].split("/",1)[0]
+        
     user_agent = "Googlebot"
 
     res = requests.get(
@@ -314,6 +317,8 @@ async def tiktok_video_details(username: Optional[str] = None, video_id:Optional
         if username[0] != "@":
             username = "@" + username
         url = f"https://www.tiktok.com/{username}/video/{video_id}"
+    else:
+        username = url.split("//www.tiktok.com/",1)[-1].split("/")[0]
         
     # user_agent = "LinkedInBot"
     user_agent = "Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)"