Webhook is a feature that allows you to receive a callback from our server when a message is incoming to your device. You can use this feature for made a dinamic chatbot or whatever you want.

We will send a POST request to your webhook url with a JSON body. Here is an example of the JSON body we will send:

{
    "device" : "your sender/device"
    "message" : "message",
    "from" : "the number of the whatsapp sender",
    "name" : "the name of the sender",
    "participant" : "sender number if group",
    "ppUrl" : "url profile picture sender",
    "media" : [
        "caption" : "caption, equal to message",
        "fileName" : "xxxx.xx",
        "stream" : [
            "type" : "Buffer",
            "data" : "xxxx"
        ]
    ],
    "mimetype" : "image\/jpeg" // depends to media type, could be image,document,audio etc
}

For example webhook you can see in Here