app.py

from flask import Flask, request, abort

from linebot import (
    LineBotApi, WebhookHandler
)
from linebot.exceptions import (
    InvalidSignatureError
)
from linebot.models import *

app = Flask(__name__)

# Channel Access Token
line_bot_api = LineBotApi('YOUR_CHANNEL_ACCESS_TOKEN')
# Channel Secret
handler = WebhookHandler('YOUR_CHANNEL_SECRET')

# 監聽所有來自 /callback 的 Post Request
@app.route("/callback", methods=['POST'])
def callback():
    # get X-Line-Signature header value
    signature = request.headers['X-Line-Signature']
    # get request body as text
    body = request.get_data(as_text=True)
    app.logger.info("Request body: " + body)
    # handle webhook body
    try:
        handler.handle(body, signature)
    except InvalidSignatureError:
        abort(400)
    return 'OK'

# 處理訊息
@handler.add(MessageEvent, message=TextMessage)
def handle_message(event):
    message = TextSendMessage(text=event.message.text)
    line_bot_api.reply_message(event.reply_token, message)


@handler.add(MessageEvent, message=StickerMessage)
def handle_sticker_message(event):
    print("package_id:", event.message.package_id)
    print("sticker_id:", event.message.sticker_id)
    sticker_ids = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 21, 100, 101, 102, 103, 104, 105, 106,
                   107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125,
                   126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 401, 402]
    index_id = random.randint(0, len(sticker_ids) - 1)
    sticker_id = str(sticker_ids[index_id])
    print(index_id)
    sticker_message = StickerSendMessage(
        package_id='1',
        sticker_id=sticker_id
    )
    line_bot_api.reply_message(
        event.reply_token,[TextSendMessage(text=sticker_id),
        sticker_message])


import os
if __name__ == "__main__":
    port = int(os.environ.get('PORT', 5000))
    app.run()