Duplicate Responses from WhatsApp Chatbot

[yousseftarhri]

Problem:

When someone sends a message to the WhatsApp chatbot, the bot sends duplicate responses in the chat. This seems to happen because of the current POST request structure or possibly some configuration in the WhatsApp API.

Steps to Reproduce:

1. Send a message to the WhatsApp chatbot.
2. Observe the duplicate responses in the chat.

Expected Behavior:

The bot should only send a single response for each user message.

Code Snippet:

@app.route('/', methods=["POST"])
def send_message():
    if request.method == 'POST':
        body = request.get_json()
        print(body)

        if body["entry"][0]["changes"][0]['value']["messages"][0]["from"] == PHONE_NUMBER:
            user_question = body["entry"][0]["changes"][0]['value']["messages"][0]["text"]["body"]

            response = ai_response(user_question)
            url = "https://graph.facebook.com/v18.0/115446774859882/messages"
            headers = {
                "Authorization": f"Bearer {WHAT_TOKEN}",
                "Content-Type": "application/json"
            }
            data = {
                "messaging_product": "whatsapp",
                "to": PHONE_NUMBER,
                "type": "text",
                "text": {"body": response}
            }

            response = requests.post(url, json=data, headers=headers)
            print(response.text)
            return Response(body, 200)