| Name | Type | Description | Notes |
|---|---|---|---|
| type | String | The action type. | |
| text | String | The button text. | |
| payload | String | The payload to be sent with the resulting webhook. Required for postback and reply actions. | [optional] |
| metadata | Object | Flat JSON object containing any custom properties associated with the action. | [optional] |
| amount | Integer | The amount being charged. It needs to be specified in cents and is an integer. Required for buy actions. | [optional] |
| currency | String | The currency of the amount being charged (USD, CAD, etc.). | [optional] |
| _default | Boolean | Flag indicating if the message action is the default for a message item in Facebook Messenger. | [optional] |
| iconUrl | String | An icon to render next to the reply option (Facebook Messenger and Web Messenger only). | [optional] |
| uri | String | The action URI. This is the link that will be used in the clients when clicking the button. Required for link and webview actions. | [optional] |
| fallback | String | The webview action fallback uri. This is the link that will be used in clients that do not support webviews. Required for webview actions. | [optional] |
| size | String | The size used to display the webview. Allowed values are ["compact", "tall", "full"]. (Optional) Used for webview actions. | [optional] |
| extraChannelOptions | Object | Extra options to pass directly to the channel API. See Extra Channel Options | [optional] |