var options = new Options
    {
        ClientId = "...",
        ClientSecret = "...",
        RedirectUri = "..."
    };

// Initialize a new Client (without an AccessToken)
var client = new Client(options);

// Get the OAuth Request Url
var authRequestUrl = await client.Core.OAuth2.AuthorizeAsync("code");

// TODO: Navigate to authRequestUrl using the browser, and retrieve the Authorization Code from the response
var authCode = "...";

// Exchange the Authorization Code with Access/Refresh tokens
var token = await client.Core.OAuth2.TokenAsync(authCode);

// Get account info
var accountInfo = await client.Core.Accounts.AccountInfoAsync();
Console.WriteLine("Uid: " + accountInfo.uid);
Console.WriteLine("Display_name: " + accountInfo.display_name);
Console.WriteLine("Email: " + accountInfo.email);

// Get root folder without content
var rootFolder = await client.Core.Metadata.MetadataAsync("/", list: false);
Console.WriteLine("Root Folder: {0} (Id: {1})", rootFolder.Name, rootFolder.path);

// Get root folder with content
rootFolder = await client.Core.Metadata.MetadataAsync("/", list: true);
foreach (var folder in rootFolder.contents)
{
    Console.WriteLine(" -> {0}: {1} (Id: {2})", 
        folder.is_dir ? "Folder" : "File", folder.Name, folder.path);
}

// Initialize a new Client (with an AccessToken)
var client2 = new Client(options);

// Create a new folder
var newFolder = await client2.Core.FileOperations.CreateFolderAsync("/New Folder");

// Find a file in the root folder
var file = rootFolder.contents.FirstOrDefault(x => x.is_dir == false);

// Download a file
var tempFile = Path.GetTempFileName();
using (var fileStream = System.IO.File.OpenWrite(tempFile))
{
    await client2.Core.Metadata.FilesAsync(file.path, fileStream);
}

//Upload the downloaded file to the new folder

using (var fileStream = System.IO.File.OpenRead(tempFile))
{
    var uploadedFile =await client2.Core.Metadata.FilesPutAsync(fileStream, newFolder.path + "/" + file.Name);
}

// Search file based on name
var searchResults = await client2.Core.Metadata.SearchAsync("/", file.Name);
foreach (var searchResult in searchResults)
{
    Console.WriteLine("Found: " + searchResult.path);
}