Post a Feed Element with a New File (Binary) Attachment

Call a method to post a feed element with a new file.

Important

In version 36.0 and later, you can’t post a feed element with a new file in the same call. Upload files to Salesforce first, and then specify existing files when posting a feed element.

This example calls postFeedElement(communityId, feedElement, feedElementFileUpload) to post a feed item with a new file (binary) attachment.

ConnectApi.FeedItemInput input = new ConnectApi.FeedItemInput();
input.subjectId = 'me';

ConnectApi.ContentCapabilityInput contentInput = new ConnectApi.ContentCapabilityInput();
contentInput.title = 'Title';

ConnectApi.FeedElementCapabilitiesInput capabilities = new ConnectApi.FeedElementCapabilitiesInput();
capabilities.content = contentInput;

input.capabilities = capabilities;

String text = 'These are the contents of the new file.';
Blob myBlob = Blob.valueOf(text);
ConnectApi.BinaryInput binInput = new ConnectApi.BinaryInput(myBlob, 'text/plain', 'fileName');

ConnectApi.ChatterFeeds.postFeedElement(Network.getNetworkId(), input, binInput);