Line bot doesn't reply any message

[snowuyl]

#!/usr/bin/env python

from flask import Flask, request, abort

from linebot.v3 import (
WebhookHandler
)
from linebot.v3.exceptions import (
InvalidSignatureError
)
from linebot.v3.messaging import (
Configuration,
ApiClient,
MessagingApi,
ReplyMessageRequest,
TextMessage
)
from linebot.v3.webhooks import (
MessageEvent,
TextMessageContent
)

app = Flask(name)

configuration = Configuration(access_token='Access token from Line developer console')
handler = WebhookHandler('Channel secret from Line developer console')

@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:
    app.logger.info("Invalid signature. Please check your channel access token/channel secret.")
    abort(400)

return 'OK'

@handler.add(MessageEvent, message=TextMessageContent)
def handle_message(event):
with ApiClient(configuration) as api_client:
line_bot_api = MessagingApi(api_client)
line_bot_api.reply_message_with_http_info(
ReplyMessageRequest(
reply_token=event.reply_token,
messages=[TextMessage(text=event.message.text)]
)
)

if name == "main":
app.run()

System Informations

• Python version: 3.9.21
• SDK version: 3.14.2
• OS: Rokcy Linux 9

Expected Behavior

Line Bot should reply any message.

Current Behavior

Line Bot doesn't reply any message.

Steps to Reproduce

1. Running sample code from line-bot-sdk-python Github as shown above.
2. Sending "Hi" from iPhone Line APP to Line Bot
3. Line Bot doesn't reply any message.

Logs

./line_bot_test.py

• Serving Flask app 'line_bot_test'
• Debug mode: off
  WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Running on http://127.0.0.1:5000
  Press CTRL+C to quit