Is it possible to send a stream within a SyncResponse requested by a SendAndWaitAsync ?

[curunoir]

Hi,
I know my question may be strange so I will explain my use case but first of all thanks to the contributors of this usefull library.

My use case is that a client wants a server to request an URI (mostly with HttpClient) and returns its synchronously. As the content behind requested uri may be large and the server has low memory resources streams should be needed. Unfortunately my client can't run fully asynchronously and I have to use Task.Result in order to force server response to be synchronous.

Steps could be

• application with Watson client sends a message to Watson server that he wants to request https://xxx and wait for results
• Watson server received this request and use HttpClient.GetStreamAsync to start reading https://xxx content and pass it to the client chunks by chunks

Problem with my first implementation is that if client is using SendAndWaitAsync, it will receive a SyncResponse. If server initiates a SendAsync with MemoryStream as long as it reads HttpClient.GetStreamAsync chunks client will receive it on its StreamReceived callback but I don't figure how I could fit my use case with my client waiting synchronously a response to its first request.

I hope it is clear enough, thanks for watching. :)

[jchristn]

Hi @curunoir thanks for your note and your kind words. Sync requests and responses should, in general, be used with bounded request and response sizes. I wouldn't encourage you to use it with a potentially large request or response body. What I would recommend as an alternative is to set some identifier in your request and use the normal asynchronous Send APIs, and monitor incoming messages for a response to that particular identifier. You could implement a timeout of sorts and have an implementation that is behaviorally consistent with sync request/response but allowing you to use a stream.

[curunoir]

Thanks I will dig with these elements :)