private async Task <string> RequestAsync(HttpMethod method, BinanceHttpRequest request, CancellationToken token = default)
{
Throw.IfNull(request, nameof(request));
token.ThrowIfCancellationRequested();
var requestMessage = request.CreateMessage(method);
Logger?.LogDebug($"{nameof(BinanceHttpClient)}.{nameof(RequestAsync)}: [{method.Method}] \"{requestMessage.RequestUri}\"");
using (var response = await _httpClient.SendAsync(requestMessage, token).ConfigureAwait(false))
{
if (response.IsSuccessStatusCode)
{
var json = await response.Content.ReadAsStringAsync()
.ConfigureAwait(false);
OnMessage(json, requestMessage.RequestUri.AbsoluteUri);
return(json);
}
if (response.StatusCode == HttpStatusCode.GatewayTimeout)
{
throw new BinanceUnknownStatusException();
}
var error = await response.Content.ReadAsStringAsync()
.ConfigureAwait(false);
var errorCode = 0;
string errorMessage = null;
// ReSharper disable once InvertIf
if (!string.IsNullOrWhiteSpace(error) && error.IsJsonObject())
{
try // to parse server error response.
{
var jObject = JObject.Parse(error);
errorCode = jObject["code"]?.Value <int>() ?? 0;
errorMessage = jObject["msg"]?.Value <string>();
}
catch (Exception e)
{
Logger?.LogError(e, $"{nameof(BinanceHttpClient)}.{nameof(RequestAsync)} failed to parse server error response: \"{error}\"");
}
}
OnMessage(error, requestMessage.RequestUri.AbsoluteUri);
// ReSharper disable once SwitchStatementMissingSomeCases
switch (response.StatusCode)
{
case (HttpStatusCode)429:
throw new BinanceRequestRateLimitExceededException(response.ReasonPhrase, errorCode, errorMessage);
case (HttpStatusCode)418:
throw new BinanceRequestRateLimitIpBanException(response.ReasonPhrase, errorCode, errorMessage);
default:
throw new BinanceHttpException(response.StatusCode, response.ReasonPhrase, errorCode, errorMessage);
}
}
}
