I am working on a remote event receiver which uses app only permission. now i am trying to get the current user who execute the RER:-

var o = context.Web.CurrentUser.LoginName;
listItem["Author"] = context.Web.EnsureUser(HttpContext.Current.User.Identity.Name);

but the context.Web.CurrentUser.LoginName will return app@sharepoint instead of the actual username, and the HttpContext.Current.User.Identity.Name will return object reference not set to an instance..... any advice on this please? Thanks

  • 1
    The answer depends on which type of event you are handling. Item Event, List Event, App Event?
    – willman
    Commented Feb 19, 2020 at 16:33
  • @willman item event (item updated and item added)
    – John John
    Commented Feb 19, 2020 at 16:35

1 Answer 1


When you are handling an Item-triggered event, then the Properties parameter passed into your ProcessEvent or ProcessOneWayEvent methods has a ListEventProperties property which will contain the CurrentUserId, UserDisplayName, and UserLoginName that should all hold information about the user who "triggered" the event.

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