Send a Direct Message

// Define the FeedItemInput object to pass to postFeedElement
ConnectApi.FeedItemInput feedItemInput = new ConnectApi.FeedItemInput();
 
ConnectApi.TextSegmentInput textSegmentInput = new ConnectApi.TextSegmentInput();
textSegmentInput.text = 'Thanks for attending my presentation test run this morning. Send me any feedback.';
 
// The MessageBodyInput object holds the text in the post
ConnectApi.MessageBodyInput messageBodyInput = new ConnectApi.MessageBodyInput();
messageBodyInput.messageSegments = new List<ConnectApi.MessageSegmentInput>();
messageBodyInput.messageSegments.add(textSegmentInput);
feedItemInput.body = messageBodyInput;
 
// The FeedElementCapabilitiesInput object holds the capabilities of the feed item.
// For this feed item, we define a direct message capability to hold the member(s) and the subject.
 
List<String> memberIds = new List<String>();
memberIds.add('005B00000016OUQ');
memberIds.add('005B0000001rIN6');
 
ConnectApi.DirectMessageCapabilityInput dmInput = new ConnectApi.DirectMessageCapabilityInput();
dmInput.subject = 'Thank you!';
dmInput.membersToAdd = memberIds;
 
ConnectApi.FeedElementCapabilitiesInput feedElementCapabilitiesInput = new ConnectApi.FeedElementCapabilitiesInput();
feedElementCapabilitiesInput.directMessage = dmInput;
 
feedItemInput.capabilities = feedElementCapabilitiesInput;
 
// Post the feed item. 
ConnectApi.FeedElement feedElement = ConnectApi.ChatterFeeds.postFeedElement(Network.getNetworkId(), feedItemInput);