Chunked request body support

[zemelLeong]

django 2.0.2
channels 2.0.2
os: ubuntu
mode: debugger

Hi,
My project can receive large file upload, when using channels before. It will write a temporary file in the /tmp directory. But, when I use channels. Nothing in the /tmp directory. About transmit 12M will fail.
Could you tell me what is problem?

My settings.py config:
INSTALLED_APPS = [... , channels]
ASGI_APPLICATION = "myproject.routing.application"

I use javascript client test it can be connect success

[matthiask]

Daphne/Channels do not support chunked request bodies yet.

Here's the relevant issue for Daphne: django/daphne#126

AsgiHandler / AsgiRequest in Channels do not handle chunked request bodies either (

channels/channels/http.py

Line 110 in 6579c0f

# TODO: chunked bodies

)

This will probably not be easy to solve / fix.

[zemelLeong]

It means that channels has blocked the file upload request, but it can't handle the file upload request. Is it?

[andrewgodwin]

Channels will never write files into /tmp - it is meant to blocking-receive them from the client and pass them to the application in chunks, which can then proceed to stream that to disk if it wants (Django will do this). I'll move this into a chunked request body ticket.

[hozblok]

Currently related PR is #1251

[carltongibson]

Going to close as _plain-old HTTP_™ should move to using Django's ASGIHandler — we'll be removing the Channels version.