How to check http response code?

I had write the following code and I just understand it has an error. Problem is that result.Error.Code is binance code. But how to check http code? I didn’t find it.

    public static async Task<long> GetPingAsync(IBinanceClient httpClient) {
        while (true) {
            var result = await httpClient.PingAsync().ConfigureAwait( false );
            if (result.TryGetData( out var data )) return data; // If success then return result. Else repeat request or throw exception.
        }
    }

    private static bool TryGetData<T>(this CallResult<T> result, out T data) {
        if (result.Success) {
            data = result.Data;
            return true;
        }
        if (result.IsError5xx()) {
            data = default;
            return false;
        }
        throw new Exception( result.Error.ToString() );
    }

    // Here is a bug !!!
    private static bool IsError5xx<T>(this CallResult<T> result) {
        // HTTP 5XX return codes are used for internal errors; the issue is on Binance's side. It is important to NOT treat this as a failure operation; the execution status is UNKNOWN and could have been a success.
        return !result.Success && result.Error.Code >= 500 && result.Error.Code <= 599; // todo: fix
    }

[JKorf]

Hi, the error codes listed at https://github.com/JKorf/CryptoExchange.Net/blob/master/CryptoExchange.Net/Objects/Error.cs don’t map to http status codes. I’ve exposed the http status code for rest requests by changing the return type from CallResult<T> to WebCallResult<T> which has an extra ResponseStatusCode field which contains the http status code. This is available in version 4.0.8 which should be on Nuget in a few minutes.

[JKorf]

You can use the http status codes, however the binance error codes are generally more specific as to what the problem is. ResponseStatusCode is null when the request was either never send or there was no response from the server.