I can add a role to a document with this code:

var REST = globalvars.absoluteUrl + "/_api/SP.Sharing.DocumentSharingManager.UpdateDocumentSharingInfo";

var data = JSON.stringify({
    'resourceAddress': fileAdress,
            '__metadata': { 'type': 'SP.Sharing.UserRoleAssignment' },
            'Role': role,
            'UserId': sharedWith
    'validateExistingPermissions': false,
    'additiveMode': true,
    'sendServerManagedNotification': sendEmail,
    'customMessage': contentEmail,
    'includeAnonymousLinksInNotification': false

But I don't know how to retrieve this information.


Try to get user effective permissions as the following

/_api/web/lists/getbytitle('" + Library Title + "')/getusereffectivepermissions(@user)?@user='" + encodeURIComponent(accountName) + "'"

Also, check

  • 1
    Thank you. I found query to specific list item on your link. url: "<app web url>/_api/SP.AppContextSite(@target)/web /lists(guid'a290086b-2d43-4151-add4-893474a930a9')/items(2) /getusereffectivepermissions(@v)?@v='i%3A0%23.f%7Cmembership%7Cuser%40domain.onmicrosoft.com' &@target='<host web url>'", – Joao Paulo Nov 5 '18 at 21:59

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