Die send_image()-Funktion für den Messenger-Bot

send_image.py

def send_image(recipient_id, image_url):
    """send an image to a recipient"""

    recipient = { 'id' : recipient_id }

    # create an image object
    image = { 'url' : image_url }

    # add the image object to an attachment of type "image"
    attachment = {
        'type'      : 'image',
        'payload'   : image
    }

    # add the attachment to a message instead of "text"
    message = { 'attachment' : attachment }

    # now create the final payload with the recipient
    payload = {
        'recipient' : recipient,
        'message' : message
    }
    send(payload)