How to send response to client while streaming.

[sunbarve]

I need to know how we send response to client for every chunks in streaming to overcome timeout error.

[sourcepirate]

Could you be more precise ? If you are asking about the streaming api of sanic here is the docs for it.
https://sanic.readthedocs.io/en/latest/sanic/streaming.html.
Or if your question is something else please elaborate so that we can help you.

[sunbarve]

@sourcepirate Yes i want to use streaming API for upload file from client and i also check that sanic streaming API. but my question is how we send response to client while processed every chunks..i.e "First chunk is save" for making connection between client and server.

[sourcepirate]

I think you should take a look at #546 and
#697. Thanks.

[sunbarve]

As per streaming API of sanic, It take whole request and then stream that request in body one by one, after completing that request send only one response to client. I want to use this for web application like file upload functionality, and get response for every stream while upload.

[sourcepirate]

I believe you could stream the request in chunks with await request.stream.get().

[sourcepirate]

If your question is about how to make client send in chunks of a file. You could refer to https://www.html5rocks.com/en/tutorials/file/filesystem/

[sunbarve]

@sourcepirate Thanks

[sunbarve]

@sourcepirate,I want send a stream content to the client with the stream method because as per sanic response streaming, it stream all data in body and final send one response to client instead of send every stream.

[sjsadowski]

As I'm interpreting it, I think that the question is how to accept chunked streams and respond as those chunks complete. But I'm not 100% sure.

[vltr]

As Sanic is "architectured" today, this might be possible with some knowledge of the inner protocols and stuff. The Sanic server waits for all chunks of the body to be completed prior to calling the request handler unless the same is a stream, so it would need to read the stream data instead of the body but, to send data (even if it's a \0) as it receives from the stream, I don't really know (if it's possible or if it'll not break the connection). Perhaps you can implement a timer in a task, but I'm really not sure of what all this means in terms of functionality (or if this is even possible with a "clean solution"). I tried to keep up on this (as this kind of "issue" grew with a lot of other issues and PRs). Probably @r0fls and @ashleysommer (specially) can enlighten us better regarding this ... Personally speaking, this should need some documentation (and/or examples for any "Tips & Tricks" future page).

[sjsadowski]

Closing, thread has stagnated and requester has not added to comments since org move.