dumbbot.py

import requests

BOT_TOKEN = "xxx:yyy"
STICKERS = []


def get_updates(offset=None):
    return requests.get(f"https://api.telegram.org/bot{BOT_TOKEN}/getUpdates",
                        params={"offset": offset, "timeout": 30}).json()


def to_cached_sticker(id, file_id):
    return {
        "type": "sticker",
        "id": id,
        "sticker_file_id": file_id
    }


def persist_sticker(msg):
    file_id = msg.get("sticker", {}).get("file_id")
    if not file_id:
        return

    STICKERS.append(file_id)
    print(f"Storage size is: {len(STICKERS)}")


def answer_inline_query(query):
    print(">>>>>")
    print(f'received offset: {query.get("offset")} query id: {query.get("id")}')
    offset_str = query.get("offset", "0") or "0"
    try:
        offset = int(offset_str) or 0
    except ValueError:
        return

    stickers_slice = list(enumerate(STICKERS[offset:offset + 20]))

    next_offset = str(offset + 20) if len(stickers_slice) == 20 else None

    print(f'sending answer with next_offset: {next_offset}')
    print("<<<<<")

    resp = {
        "inline_query_id": query.get("id"),
        "results": [to_cached_sticker(ix, file_id) for (ix, file_id) in stickers_slice],
        "cache_time": 0
    }

    if next_offset:
        resp["next_offset"] = next_offset

    return requests.post(f"https://api.telegram.org/bot{BOT_TOKEN}/answerInlineQuery", json=resp)


offset = None

while True:
    updates = get_updates(offset)

    results = updates.get("result")

    if results is None or 0 == len(results):
        continue

    offset = results[-1].get("update_id") + 1

    for u in results:
        iq = u.get("inline_query")
        msg = u.get("message")

        if iq is not None:
            answer_inline_query(iq)
        elif msg is not None:
            persist_sticker(msg)