1. A computer implemented method of interacting with one or more data objects from a publisher configured to publish information to an information feed of an online social network, comprising: providing, by a computing device, data to generate a user interface including a publisher with a custom action, wherein the custom action is configured to interact with a data object in accordance with custom action instructions provided by a first entity via an application programming interface (API), and wherein the data object is stored or configured to be stored in a database system; receiving, at the computing device, a request to interact with the data object via selection of the custom action in the user interface from a second entity; receiving, at the computing device, first information for one or more data fields associated with the data object from the publisher; updating the database system based on the first information for the one or more data fields associated with the data object; and presenting a feed item associated with the update based on the first information for inclusion in an information feed in the user interface.