public async Task Invoke(IDictionary<string, object> environment)
{
var request = new OwinRequest(environment);
Uri uri = request.Uri;
// Create a stream for the host and port so we can send the request
Stream stream = await _streamFactory.CreateStream(uri).ConfigureAwait(continueOnCapturedContext: false);
var requestWriter = new StreamWriter(stream);
// Request line
requestWriter.WriteHttpLine("{0} {1} {2}", request.Method, uri.PathAndQuery, request.Protocol);
// Write headers
foreach (var header in request.Headers)
{
requestWriter.WriteHttpLine("{0}: {1}", header.Key, request.GetHeader(header.Key));
}
// End headers
requestWriter.WriteHttpLine();
if (request.Body == null)
{
// End request
requestWriter.WriteHttpLine();
}
// Flush buffered content to the stream async
await requestWriter.FlushAsync().ConfigureAwait(continueOnCapturedContext: false);
if (request.Body != null)
{
// Copy the body to the request
await request.Body.CopyToAsync(stream).ConfigureAwait(continueOnCapturedContext: false);
}
var response = new OwinResponse(environment);
// Parse the response
HttpParser.ParseResponse(stream, (protocol, statusCode, reasonPhrase) =>
{
response.Protocol = protocol;
response.StatusCode = statusCode;
response.ReasonPhrase = reasonPhrase;
},
(key, value) => response.SetHeader(key, value));
// Set the body to the rest of the stream
response.Body = stream;
}
