Is this Python file upload handler ok?

from fastapi import APIRouter, UploadFile, File, HTTPException
from pathlib import Path
import uuid
import imghdr

router = APIRouter()
ALLOWED_TYPES = {"image/jpeg", "image/png", "image/webp"}
MAX_SIZE = 2 * 1024 * 1024

@router.post("/upload-avatar")
async def upload_avatar(file: UploadFile = File(...)):
    if file.content_type not in ALLOWED_TYPES:
        raise HTTPException(400, "Invalid file type")

    data = await file.read()
    if len(data) > MAX_SIZE:
        raise HTTPException(400, "File too large")

    ext = Path(file.filename).suffix.lower()
    if ext not in {".jpg", ".jpeg", ".png", ".webp"}:
        raise HTTPException(400, "Invalid extension")

    kind = imghdr.what(None, h=data)
    if kind not in {"jpeg", "png", "webp"}:
        raise HTTPException(400, "Invalid image content")

    dest = Path("/var/uploads/avatars") / f"{uuid.uuid4()}{ext}"
    dest.write_bytes(data)
    return {"url": f"/static/avatars/{dest.name}"}