Buttons type

Buttons reply contains a collection of buttons to render. Each button can be a simple button or a link to external URL.

There is a format of this reply type

{
  "type": "buttons",
  "buttons": [
    {"text": "Cancel"},
    {"text": "Details", "url": "https://someurl.com"},
    {"text": "Restart game", "payload": "/start"}
  ]
}

Simple button

The tap on simple button just sends a text of this button as a new user request. User can use these buttons instead of speaking of next command.

Payload button

The tap on simple button with payload sends the payload field content instead of button's title text.

Link button

Every link button contains url field with direct URL to the external resource like a website. If user presses this button an assistant should open this URL in a web browser.