app.py

from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/', methods=['GET'])
def home():
    return "Welcome to the chatbot!"

@app.route('/webhook', methods=['POST'])
def webhook():
    data = request.get_json()
    messaging_event = data['entry'][0]['messaging'][0]

    if 'message' in messaging_event:
        sender_id = messaging_event['sender']['id']
        message_text = messaging_event['message'].get('text', '')

        if message_text.lower() == 'hi':
            response_text = 'hello'
            send_message(sender_id, response_text)

    return jsonify({'status': 'ok'})

def send_message(recipient_id, message_text):
    access_token = 'EAAHQjpHkOQQBO8d03L5jRIdplH7dOuYOFpTCYqVMU4QZA7HJbzP6pGICnCam6RF2zhfR7Hu8s7p5eKDH1Bjn84tm0ZBEA2CJCzu4UujsUUkGIZAuP7wNQVLs9OY34CsOixt5nkgi9zLPPFCGpAEEpo8dXZBXifQPOwGtma7FfWmP2AMpukODNfsfbv8SeA4K'  # Replace with your Facebook Page Access Token
    url = f'https://graph.facebook.com/v12.0/me/messages?access_token={access_token}'
    headers = {'Content-Type': 'application/json'}
    payload = {
        'recipient': {'id': recipient_id},
        'message': {'text': message_text}
    }
    requests.post(url, headers=headers, json=payload)

if __name__ == '__main__':
    app.run(port=7860, debug=True)