Case Comment Capability

If a feed element has this capability, it has a case comment on the case feed.

Property Name	Type	Description	Filter Group and Version	Available Version
`actorType`	String	Specifies the type of user who made the comment. `Customer`—if a Chatter customer made the comment `CustomerService`—if a service representative made the comment	Small, 32.0	32.0
`createdBy`	User Detail or User Summary	Information about the user who created the comment.	Small, 32.0	32.0
`createdDate`	String	ISO 8601 date string, for example, 2011-02-25T18:24:31.000Z.	Small, 32.0	32.0
`eventType`	String	Specifies an event type for a comment in the case feed. `NewInternal`—A case comment that has newly been marked Internal Only. `NewPublished`—A newly published case comment. `NewPublishedByCustomer`—A case comment by a customer that was newly published. `PublishExisting`—An existing case comment that was republished. `PublishExistingByCustomer`—An existing case comment by a customer that was republished. `UnpublishExistingByCustomer`—An existing case comment by a customer that was unpublished. `UnpublishExsiting`—An existing case comment that was unpublished. Unfortunately, this typo is in the code, not the documentation. Use this spelling in your code. Note	Small, 32.0	32.0
`id`	String	18-character ID of case comment.	Small, 32.0	32.0
`published`	Boolean	Specifies whether the comment has been published.	Small, 32.0	32.0
`text`	String	Text of the case comment.	Small, 32.0	32.0

Chatter REST API Developer Guide