public async Task <HttpResponseMessage> CallFromHttp(IServiceInstance service, HttpRequestMessage request, CancellationToken cancellationToken)
{
var requestJson = await request.Content.ReadAsStringAsync();
if (string.IsNullOrWhiteSpace(requestJson))
{
return(new HttpResponseMessage(HttpStatusCode.BadRequest));
}
var requestPayload = JsonConvert.DeserializeObject(requestJson, service.RequestType) as BaseRequest;
if (requestPayload == null)
{
return(new HttpResponseMessage(HttpStatusCode.BadRequest));
}
var responsePayload = await service.Execute(requestPayload, cancellationToken);
var responseJson = JsonConvert.SerializeObject(responsePayload);
var httpStatusCode = ServiceResultExpander.HttpStatusCode(responsePayload.MetaData.Result);
var response = new HttpResponseMessage((HttpStatusCode)httpStatusCode)
{
Content = new StringContent(responseJson, Encoding.UTF8, "application/json"),
};
response.Headers.Add("x-cw-duration", responsePayload.MetaData.DurationMs.ToString());
response.Headers.Add("x-cw-correlationId", responsePayload.MetaData.CorrelationId.ToString());
response.Headers.Add("x-cw-result", responsePayload.MetaData.Result.ToString());
return(response);
}
public async Task Execute(
HttpContext context,
IServiceInstance service,
CancellationToken cancellationToken
)
{
DateTimeOffset start = ServiceClock.CurrentTime();
ServiceResponse output;
Guid? correlationId = null;
try
{
var input = await _converter.ConvertRequest(service.RequestType, context.Request, new HttpDataSerializerOptions());
correlationId = input.CorrelationId;
output = await service.Execute(input, cancellationToken);
}
catch (ValidationErrorException vex)
{
output = new ServiceResponse(
new ResponseMetaData(
service,
ServiceResult.ValidationError,
validationErrors: ValidationHelper.Create(vex.Error, vex.Member)));
}
await _converter.ConvertResponse(output, service.ResponseType, context.Response);
}
public async Task <HttpResponseMessage> CallFromHttp <TRequest, TResponse>(IServiceInstance <TRequest, TResponse> service, HttpRequestMessage request, Action <TRequest, RequestMapping> mapping, CancellationToken cancellationToken)
where TRequest : BaseRequest, new() where TResponse : class, new()
{
Stopwatch sw = new Stopwatch();
sw.Start();
var requestJson = await request.Content.ReadAsStringAsync();
var requestPayload = new TRequest();
if (!string.IsNullOrWhiteSpace(requestJson))
{
requestPayload = JsonConvert.DeserializeObject <TRequest>(requestJson);
}
try
{
mapping(requestPayload, new RequestMapping(request));
} catch (Exception ex)
{
logger.LogError(ex, "Cannot map object. Skipping the remainder of the mapping");
}
var responsePayload = await service.Execute(requestPayload, cancellationToken);
var responseJson = JsonConvert.SerializeObject(responsePayload);
var httpStatusCode = ServiceResultExpander.HttpStatusCode(responsePayload.MetaData.Result);
var response = new HttpResponseMessage((HttpStatusCode)httpStatusCode)
{
Content = new StringContent(responseJson, Encoding.UTF8, "application/json")
};
response.Headers.Add("x-cw-svc-duration", responsePayload.MetaData.DurationMs.ToString());
response.Headers.Add("x-cw-correlationId", responsePayload.MetaData.CorrelationId.ToString());
response.Headers.Add("x-cw-result", responsePayload.MetaData.Result.ToString());
sw.Stop();
response.Headers.Add("x-cw-e2e-duration", sw.ElapsedMilliseconds.ToString());
return(response);
}
public async Task <HttpResponseMessage> Handle(
HttpRequestMessage request,
IServiceInstance service,
CancellationToken cancellationToken)
{
var start = ServiceClock.CurrentTime();
try
{
var input = await _responseGenerator.ConvertRequest(service.RequestType, request);
var output = await service.Execute(input, cancellationToken);
var response = await _responseGenerator.ConvertResponse(request, output, service.ResponseType);
return(response);
}
catch (SchemaValidationException ex)
{
var error = await _responseGenerator.ConvertResponse(
request,
new ServiceResponse(
new ResponseMetaData(
service.FullName,
service.CorrelationId == default(Guid) ? Guid.Empty : service.CorrelationId,
ServiceResult.ValidationError,
(long)(ServiceClock.CurrentTime() - start).TotalMilliseconds,
ServiceClock.CurrentTime(),
validationErrors: ex.Errors
)
),
service.ResponseType);
return(error);
}
catch (Exception ex)
{
var serialEx = ex as CodeWorksSerializationException;
string originalPayload = serialEx?.RawData ?? "";
Dictionary <string, string[]> errors = null;
if (!string.IsNullOrWhiteSpace(originalPayload))
{
errors = new Dictionary <string, string[]> {
["payload"] = new[] { originalPayload }
};
}
var error = await _responseGenerator.ConvertResponse(
request,
new ServiceResponse(
new ResponseMetaData(
service.FullName,
service.CorrelationId == default(Guid) ? Guid.Empty : service.CorrelationId,
ServiceResult.PermanentError,
(long)(ServiceClock.CurrentTime() - start).TotalMilliseconds,
ServiceClock.CurrentTime(),
validationErrors: errors,
exceptionMessage: ex.ToString()
)
),
service.ResponseType);
return(error);
}
}
