public async Task DispatchRedRequest(
HttpContext context,
RequestDelegate next,
RequestMessage message,
CancellationToken cancellationToken
)
{
var contentType = message.Headers.ContentType;
var responseMessage = new ResponseMessage();
IMessageReaderWriter readerWriter;
if (contentType != null && contentType.StartsWith("multipart/"))
{
readerWriter = MultipartMessageReaderWriter;
responseMessage.Headers.ContentType = "multipart/mixed";
}
else //if (contentType == "application/json" || contentType == "text/json")
{
readerWriter = JsonMessageReaderWriter;
responseMessage.Headers.ContentType = contentType == "text/json" ? contentType : "application/json";
}
var response = context.Response;
var responseStream = context.Response.Body;
if (message is RequestAggregationMessage aggregationMessage)
{
var requestToResponseAdapter = new AsyncEnumerableAdapter <RequestMessage, ResponseMessage>(
aggregationMessage.UnpackAsync(cancellationToken),
request => ProgressPipeline(context, next, request, responseMessage, cancellationToken)
);
var responseContentType = readerWriter.GetResponseContentTypeFromRequestContentType(contentType);
var headers = response.Headers;
headers.Add("Content-Type", responseContentType);
await readerWriter.WriteResponseMessageToStream(responseStream, requestToResponseAdapter,
cancellationToken);
}
else
{
var pipelineResponse =
await ProgressPipeline(context, next, message, responseMessage, cancellationToken);
await readerWriter.WriteResponseMessageToStream(responseStream, pipelineResponse, cancellationToken);
await MessageConverter.CopyResponseMessageToTarget(response, pipelineResponse, cancellationToken);
}
}