ASP.NET MVC How to upload file to dropbox and return file url

Question

I making MVC website. I would like to use dropbox for storing my files. I find some code hove to upload files but I have no idea how to return back file url. How to upload file to dropbox and return uploaded file url to save in db?

My code:

 async Task Upload(DropboxClient dbx, string folder, string file, string content)
{
    using (var mem = new MemoryStream(Encoding.UTF8.GetBytes(content)))
    {
        var updated = await dbx.Files.UploadAsync(
            folder + "/" + file,
            WriteMode.Overwrite.Instance,
            body: mem);
        Console.WriteLine("Saved {0}/{1} rev {2}", folder, file, updated.Rev);
    }
}

Answer 1

How to upload file to dropbox and return uploaded file url to save in db?

Well, within upload file you would see Dropbox.Api.Sharing.CreateSharedLinkWithSettingsArg method which has the response type of SharedLinkMetadata class just like as following:

As you can see SharedLinkMetadata class has the property name URL which is :

public string Url { get; protected set; } 

Above property would provide you filesharing URL metadata. Thus, you can update your Upload method as following:

public static async Task<string> UploadFile(string folder, string fileName, string fileUri)
        {
            var dropBoxClient = new DropboxClient("Token","AppKey");
            using (var ms = new FileStream(fileUri, FileMode.Open, FileAccess.Read))
            {
                FileMetadata updated = await dropBoxClient.Files.UploadAsync(
                folder + "/" + fileName,
                WriteMode.Overwrite.Instance,
                body: ms);

                var shareLinkInfo = new Dropbox.Api.Sharing.CreateSharedLinkWithSettingsArg(folder + "/" + fileName);
                var reponseShare = await dropBoxClient.Sharing.CreateSharedLinkWithSettingsAsync(shareLinkInfo);
                return reponseShare.Url;
            }
        }

Note: If you still need further information on this, please have a look on dropbox official document here.