SharePoint 2010: HowTo upload a file of the size of 1 GB using client object model

When you use SharePoint Client OM to upload files to SharePoint 2010 Document Library, uploading of files larger than 3 MB fail with the following error:

The remote server returned an error: (400) Bad Request.

Stack trace:

System.Net.WebException was unhandled
 Message=The remote server returned an error: (400) Bad Request.
 Source=System
 StackTrace:
      at System.Net.HttpWebRequest.GetResponse()
      at Microsoft.SharePoint.Client.SPWebRequestExecutor.Execute()
      at Microsoft.SharePoint.Client.ClientRequest.ExecuteQueryToServer(ChunkStringBuilder sb)
      at Microsoft.SharePoint.Client.ClientRequest.ExecuteQuery()
      at Microsoft.SharePoint.Client.ClientRuntimeContext.ExecuteQuery()
      at Microsoft.SharePoint.Client.ClientContext.ExecuteQuery()
      at SPClientOMConsoleApp.Program.Main(String[] args) in C:\SPClientOMConsoleApp\SPClientOMConsoleApp\Program.cs:line 32
      at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
      at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
      at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
      at System.Threading.ThreadHelper.ThreadStart()
 InnerException:

Sample program used to upload file using SharePoint 2010 Client OM:

            ClientContext clientContext = new ClientContext("http://server:10000/sites/testSite");
            Web web = clientContext.Web;
            clientContext.Load(web);
            List docLib = web.Lists.GetByTitle("doclib");
            clientContext.Load(docLib);
            clientContext.ExecuteQuery();
            byte[] bFile = System.IO.File.ReadAllBytes(@"C:\largeFile.docx");
            FileCreationInformation file = new FileCreationInformation();
            file.Content = bFile;
            file.Url = "http://server:10000/sites/testSite/doclib/" + "test.docx";
            Microsoft.SharePoint.Client.File newFile = docLib.RootFolder.Files.Add(file);
            clientContext.Load(newFile);
            clientContext.ExecuteQuery();

Requirement:

How to upload files with larger size, for example up to 1 GB or more, using Client Object Model in SharePoint 2010.

The default internal restrictions on file sizes and timeout settings halt uploading of larger files using Client Object Model in SharePoint.

At times you may see that the upload operation returns a timeout exception but this is critical only for very large file sizes which are close to 2 GB. Otherwise, it can be ignored using a try-catch block and you should see that the file got uploaded successfully.

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