I have a SharePoint where I can do (CRUD) operations in the browser on a particular folder. I am trying to get all the folders using C# code

// Test code
                    ClientContext context = new ClientContext(url);
                    context.Credentials = new SharePointOnlineCredentials("username", GetSecureString("password"));
                    Web sites = context.Web;
                    context.Load(sites, website => website.Folders);
                    Folder folders = sites.RootFolder;
                catch (Exception e)
                    Console.Out.WriteLine(e.Message); Console.ReadLine();

I got an exception

"Access denied. You are not authorized to perform this action or access this resource.".

Can anyone help me out how to solve the issue?

  • I fail to see the accessing of REST. Does the user whose credentials you are providing have access to the library and folder? Is this a SharePoint app? You have it tagged, but at the same time, you state you are accessing a REST resource when you are not, so I want to clarify that. If you are in an app, verify that the app has appropriate permissions. – wjervis Jan 25 '16 at 18:06
  • Sorry if this seems too basic but just to get it out of the way: Did you attempt whatever action you're doing in a normal browser, as the user you're plugging in, to make sure permissions are correct? – Pete M Jan 25 '16 at 18:41

Make sure you have read permissions on the site. If you already have them, then try to assign yourself "colaborate" permissions.

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