This node creates a message with one or more buttons in order to get a quick reaction from the users.

Available buttons:

• URL: Open a URL inside the client. Button feedbacks are available for Telegram and Messenger extensions in Facebook [Telegram, Facebook, Viber]
• Postback: Allow the user to send a predefined message, the message will no be shown in the chat history. Button feedbacks are available for Telegram and Messenger extensions in Facebook [Telegram, Facebook, Smooch, Viber]
• Phone call: Starts a phone call on mobile. [Facebook]
• Log In: Starts the account linking flow. [Facebook]
• Log Out: Starts the account unlinking flow. [Facebook]
• New row: Telegram supports buttons layout with multiple row, this element just starts a new one. [Telegram, Viber]

Platform exceptions:

• Telegram supports a visual feedback, visible in the client, when a Postback or URL buttons is pressed
• Facebook supports some extra parameters in the URL button, like the size of the web view and messenger extensions and a maximum od three buttons.

The tipical use of the buttons node is with the Track option of a Sender node and Rules node to capture the aswer

Track answer in the Sender node

In this example the Buttons node includes two postback buttons wiht a label (it’s the label of the button) and a value (it’s what will be sent back to the chatbot if clicked). The values can be anything but it’s a good habit to use Telegram-like commands, i.e. /option1 and /option2, the reason for this is that they don’t interfere with user-generated sentences and can be easily filtered by a Rules node. The Sender node uses the Track option, the answer will be captured and sent to the Rules node which can capture one of the possible answers with a rule “Message is command …”.

The “Track message” option enables a more readable layout to handle user’s answers:

Track answer in the Buttons node