dbx.Files.UploadAsync Does not work returning Value should match pattern '\A(?:(/(.|[\r\n])*)|(ns:[0

[BokatianTi]

i have worked on this for quite a while:

async Task Upload()
{
    using (DropboxClient dbx = new DropboxClient("mytoken"))
    {
        string folder = Directory.GetCurrentDirectory();
        string file = @"\temp.dat";
        using (var mem = new MemoryStream(Encoding.UTF8.GetBytes("NotIP.dat")))
        {
            var updated = await dbx.Files.UploadAsync(folder + @"/" + file, WriteMode.Overwrite.Instance, body: mem);
            label1.Text = (folder + file + updated.Rev);
        }
    }

}

i start it with: 

var task = Upload();
task.Wait();

it returns:

Inner Exception 1:
ArgumentOutOfRangeException: Value should match pattern '\A(?:(/(.|[\r\n])*)|(ns:[0-9]+(/.*)?))\z'

Please help!

[Greg-DB]

The path you supply to UploadAsync should be the remote path in Dropbox where you want to put the uplaoded file content. It needs to match the regex pattern given in order to be a valid path for Dropbox.

The path you're currently supplying probably looks something like "C:\FolderName/\temp.dat". If you want to upload to a file in Dropbox named "file.dat" in a folder with name "FolderName", for example, you should supply a path like "/FolderName/file.dat".

[SrustiThakkar]

use following code for upload request 

byte[] byteArray = System.IO.File.ReadAllBytes(@"C:\Srusti\codingstandards.docx");
System.IO.MemoryStream stream1 = new System.IO.MemoryStream(byteArray);
var updated = await dbx.Files.UploadAsync( folder + "/" + file,WriteMode.Overwrite.Instance, body: stream1);  

[nikseresht]

Hi

Definitely, you have forgot to put a slash (/) at the begining of folder in UploadAsync method. it should be like this: 

 var updated = await dbx.Files.UploadAsync("/"+folder + "/" + file, WriteMode.Overwrite.Instance, body: mem);