Team Channel: Card with button. Specific URL for each user?

Gousia_Begum I will try it, just to see if works for me. Why do you don'r recommend it?

As far as I understand in the docu, I must add an 'Action.Submit' in my card, correct? I have that in the card.json sent to the team channel:

"actions": [
 {
      "type": "Action.Submit",
      "title": "Test1",
      "data": {
              "msteams": {
                    "type": "invoke",
                    "value": "{\"key1\": \"value1\", \"key2\": \"value2\"}"
               }
       }
}
]

I receive a post in my bot ("type='invoke'), but is there any method in the API to handle it? Or must I check the 'type' and process then? Now I have that code, and I return a task to open a browser in Teams channel, but no browser is open (I get no error):

   onPostReceived(req, res) {
         if (req.body == "invoke") {
              var task = {
                  "task": {
                           type: 'continue',
                           value: {
                                    width: 500,
                                    height: 200,
                                    title: "site title",
                                    url: myUrl,
                                    fallbackUrl: myUrl
                           }
                    }
             }

             res.writeHeader(200, { "Content-Type": "application/json" });
             res.write(JSON.stringify(task));
             res.end();
         }
}

What am I doing wrong? 

Thanks,

Diego