private Task HandleRequest <TRequest, TResponse>(Func <TRequest, TResponse> handler, bool limitRatio = false) where TRequest : BaseRequest
{
// setup response
Response.Headers.Add("Content-Type", "application/json; charset=utf-8");
// load request body
using var reader = new StreamReader(Request.Body);
var body = reader.ReadToEnd();
_logger.LogInformation($"REQUEST {typeof(TRequest)}:\n{body}");
var request = JsonConvert.DeserializeObject <TRequest>(body, Utils.ConverterSettings);
// check sign
if (request == null || !_socialService.IsSignValid(request.UserId, request.Params, request.Sign))
{
_logger.LogWarning("Signature calculation failed");
Response.StatusCode = 400;
return(Response.WriteAsync(new ErrorResponse("Signature calculation failed").ToString()));
}
// check requests ratio
if (limitRatio)
{
if (!_concurrencyService.CheckAddRequest(request.UserId))
{
_logger.LogWarning("Too many requests");
Response.StatusCode = 400;
return(Response.WriteAsync(
new ErrorResponse("Вы вызываете запросы слишком часто, попробуйте через несколько секунд")
.ToString()
));
}
}
// handle request
try
{
var response = handler(request);
var stringResponse = JsonConvert.SerializeObject(response, Utils.ConverterSettings);
_logger.LogInformation($"RESPONSE:\n{stringResponse.SafeSubstring(300)}");
return(Response.WriteAsync(stringResponse));
}
catch (KeyNotFoundException e)
{
_logger.LogWarning(e.Message);
Response.StatusCode = 400;
return(Response.WriteAsync(new ErrorResponse("Такой дуэли больше нет").ToString())); // TODO error codes
}
catch (Exception e)
{
#if DEBUG
throw;
#endif
_logger.LogWarning(e.Message);
Response.StatusCode = 400;
return(Response.WriteAsync(new ErrorResponse(e.Message).ToString()));
}
}