PostbackItem (RestFB 2024.14.0 API)

java.lang.Object
- com.restfb.types.webhook.messaging.PostbackItem

All Implemented Interfaces:

InnerMessagingItem
```
public class PostbackItem
extends Object
implements InnerMessagingItem
```
Represents a receiving postback object as defined here: https://developers.facebook.com/docs/messenger-platform/webhook-reference/postback

Constructor Summary

Constructors
Constructor Description

PostbackItem()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getMid()`	Message ID
`String`	`getPayload()`	payload parameter that was defined with the button
`PostbackReferral`	`getReferral()`	Comes only with Get Started postback and if an optional ref param was passed from the entry point, such as m.me link.
`String`	`getTitle()`	Title for the CTA that was clicked on.
`void`	`setMid(String mid)`	Message ID
`void`	`setPayload(String payload)`	payload parameter that was defined with the button
`void`	`setReferral(PostbackReferral referral)`	Comes only with Get Started postback and if an optional ref param was passed from the entry point, such as m.me link.
`void`	`setTitle(String title)`	Title for the CTA that was clicked on.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - PostbackItem
```
public PostbackItem()
```
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getMid
```
public String getMid()
```
    Message ID
  - setMid
```
public void setMid(String mid)
```
    Message ID
  - getTitle
```
public String getTitle()
```
    Title for the CTA that was clicked on. This is sent to all apps subscribed to the page. For apps other than the original CTA sender, the postback event will be delivered via the standby channel.
  - setTitle
```
public void setTitle(String title)
```
    Title for the CTA that was clicked on. This is sent to all apps subscribed to the page. For apps other than the original CTA sender, the postback event will be delivered via the standby channel.
  - getPayload
```
public String getPayload()
```
    payload parameter that was defined with the button
  - setPayload
```
public void setPayload(String payload)
```
    payload parameter that was defined with the button
  - getReferral
```
public PostbackReferral getReferral()
```
    Comes only with Get Started postback and if an optional ref param was passed from the entry point, such as m.me link.
  - setReferral
```
public void setReferral(PostbackReferral referral)
```
    Comes only with Get Started postback and if an optional ref param was passed from the entry point, such as m.me link.