Mirror your Telegram channel to your Facebook Page

from clickruntime import on_event, credentials, http

PAGE_ID = "1234567890"

@on_event
def handle(event):
    post = (event.json or {}).get("channel_post", {})
    text = post.get("text") or post.get("caption") or ""
    if "#noshare" in text or not (text or post.get("photo")):
        return {"skipped": True}
    fb = {"access_token": credentials.connection("facebook", "work")}
    if post.get("photo"):
        token = credentials.secret("TELEGRAM_BOT_TOKEN")
        path = http.get(f"https://api.telegram.org/bot{token}/getFile",
                        params={"file_id": post["photo"][-1]["file_id"]}).json()["result"]["file_path"]
        image = http.get(f"https://api.telegram.org/file/bot{token}/{path}").content
        result = http.post(f"https://graph.facebook.com/v21.0/{PAGE_ID}/photos", data={**fb, "caption": text},
                           files={"source": image}).json()
    else:
        result = http.post(f"https://graph.facebook.com/v21.0/{PAGE_ID}/feed", data={**fb, "message": text}).json()
    return {"post": result.get("id")}