Requires 'Office365Users' Connector.
What I'm doing here is prepopulating a field on an item form that references a people column in a SharePoint list.
CurrentUser = Office365Users.MyProfileV2();
CurrentUserPhoto = Office365Users.UserPhotoV2(CurrentUser.mail);
CurrentUserObject = {
'@odata.type': "#Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser",
Claims: "i:0#.f|membership|" & CurrentUser.mail,
Department: CurrentUser.department,
DisplayName: CurrentUser.displayName,
Email: CurrentUser.mail,
JobTitle: CurrentUser.jobTitle,
Picture: CurrentUserPhoto
};
For the DataCardValue combobox that selects a person, under DefaultSelectedItems:
If(ItemForm.Mode = FormMode.New, CurrentUserObject, Parent.Default)