private async Task Intercept(HttpContext context, bool isText, string format, ITranscoder transcoder)
{
var textPostfix = isText ? "-text" : "";
var formatPostfix = format != null ? $"+{format}" : "";
context.Features.Set <IHttpResponseTrailersFeature>(this);
context.Request.Protocol = "HTTP/2";
context.Request.ContentType = $"application/grpc{formatPostfix}";
context.Response.OnStarting(() =>
{
context.Response.ContentType = $"application/grpc-web{textPostfix}{formatPostfix}";
return(Task.CompletedTask);
});
await transcoder.TranscodeStream(_next);
if (Trailers.Count > 0)
{
_logger.LogDebug("Adding trailers");
await transcoder.TranscodeTrailers(Trailers);
}
else
{
_logger.LogDebug("Skipping trailers");
}
}
