Update app.py

app.py

@@ -48,17 +48,6 @@ logger = logging.getLogger(__name__)
 RATE_LIMIT_DELAY = 5  # Delay in seconds between API calls
 LAST_REQUEST_TIME = 0
 
-class UserRequest(BaseModel):
-    username: str = Field(..., min_length=1, max_length=30)
-
-    @validator("username")
-    def validate_username(cls, value):
-        """
-        Validate that the username contains only alphanumeric characters, dots, and underscores.
-        """
-        if not re.match(r"^[a-zA-Z0-9._]+$", value):
-            raise ValueError("Username can only contain alphanumeric characters, dots, and underscores.")
-        return value
 
 @app.post("/fetch-posts")
 async def fetch_posts(user: UserRequest):