Is the SharePoint 2013 REST API fully supported in SharePoint Online (part of Office 365)?
Assuming I have access permissions to make REST API calls to a SharePoint subscriptions, can I safely assume that all SP2013 REST URLs and resources are available to me?
PS - I know of one example where SharePoint has functionality missing in the SharePoint 2013 API - The OData $batch query option. I'm interested in the opposite direction where SP2013 services might be missing in SharePoint Online.