Problem with GetMetadataAsync

Hi Donald, there is a rate limiting system on the Dropbox API, but it's relatively generous. If you are hitting it though, the Dropbox API will return an explicit rate limiting error. It's possible you're missing that since you're not inspecting what kind of exception you're getting, as you mentioned. Likewise, there are other exceptions that can occur on GetMetadataAsync other than just 'not_found'.

Here's an example of how you can break out some of the various error cases:

try
{
    Metadata res = await client.Files.GetMetadataAsync(path);
    Console.WriteLine("{0}", res);
}
catch (ApiException<GetMetadataError> e)
{
    if (e.ErrorResponse.IsPath) {
        if (e.ErrorResponse.AsPath.Value.IsNotFound) {
            Console.WriteLine("Path not found!");
        } else if (e.ErrorResponse.AsPath.Value.IsMalformedPath) {
            Console.WriteLine("Malformed path!");
        } // and so on for the other .Is* methods as desired
        else {
            Console.WriteLine("LookupError: {0}", e.ErrorResponse.AsPath.Value);
        }
    } else {
        Console.WriteLine("GetMetadataError: {0}", e);
    }
} catch (Exception e)
{
    Console.WriteLine("Some other error: {0}", e);
}