helper/messenger_api.py

import requests
import os
from dotenv import load_dotenv

load_dotenv()

PAGE_ACCESS_TOKEN = os.getenv('PAGE_ACCESS_TOKEN')

def send_message(recipient_id, message_text, image_url=None):
    if message_text:
        message_data = {
            'recipient': {'id': recipient_id},
            'message': {'text': message_text}
        }
        call_send_api(message_data)
    
    if image_url:
        message_data = {
            'recipient': {'id': recipient_id},
            'message': {
                'attachment': {
                    'type': 'image',
                    'payload': {'url': image_url}
                }
            }
        }
        call_send_api(message_data)

def call_send_api(message_data):
    url = 'https://graph.facebook.com/v11.0/me/messages'
    params = {
        'access_token': PAGE_ACCESS_TOKEN
    }
    headers = {
        'Content-Type': 'application/json'
    }
    response = requests.post(url, params=params, headers=headers, json=message_data)
    if response.status_code != 200:
        print(f'Failed to send message: {response.status_code}, {response.text}')

def set_typing_on(recipient_id):
    message_data = {
        'recipient': {'id': recipient_id},
        'sender_action': 'typing_on'
    }
    call_send_api(message_data)

def set_typing_off(recipient_id):
    message_data = {
        'recipient': {'id': recipient_id},
        'sender_action': 'typing_off'
    }
    call_send_api(message_data)