iOS - Facebook Open Graph API — Getting captions to show up next to user generated images

Question

I cannot get a caption to show up on a user-generated photo, like so:

Inst

Answer 1

It's not a caption, it's a user message.

You need to set the message in your code and in settings as a field as described in https://developers.facebook.com/docs/opengraph/using-actions/

Allows users to write a personalized message attached to this action. You can only use this when the text is entered by the user and not pre-populated. You can mention users and pages inline using mention tagging.

Furthermore, in iOS code (objective-c) from this tutorial https://developers.facebook.com/docs/tutorials/ios-sdk-tutorial/publish-open-graph-story/:

In this method:

- (void)postOpenGraphActionWithPhotoURL

setting this property:

action.message = @"your message here";

gives the desired result.