FastAPI Python

import base64

from fastapi import FastAPI, Response

GIF = base64.b64decode("R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==")

app = FastAPI()


@app.get("/pixel.gif", include_in_schema=False)
def pixel() -> Response:
    return Response(GIF, media_type="image/gif", headers={"Cache-Control": "no-store"})