Working with Action Links An action link is a button on a feed element. Clicking an action link can take a user to a Web page, initiate a file download, or invoke an API call to Salesforce or to an external server. An action link includes a URL and an HTTP method, and can include a request body and header information, such as an OAuth token for authentication. Use action links to integrate Salesforce and third-party services into the feed so that users can take action to drive productivity and accelerate innovation.
Working with Feeds and Feed Elements In API versions 30.0 and earlier, a Chatter feed was a container of feed items. In API version 31.0, the definition of a feed expanded to include new objects that didn’t entirely fit the feed item model. The Chatter feed became a container of feed elements. The abstract class ConnectApi.FeedElement was introduced as a parent class to the existing ConnectApi.FeedItem class. The subset of properties that feed elements share was moved into the ConnectApi.FeedElement class. Because feeds and feed elements are the core of Chatter, understanding them is crucial to developing applications with Chatter in Apex.
Methods Available to Communities Guest Users
If your community allows access without logging in, guest users have access to many Chatter in Apex methods. These methods return information the guest user has access to.