kangjin2014 / StreamingHttpResponse

A sample of a django app sending a StreamingHttpResponse and handling that stream in JS

StreamingHttpResponse

A sample of a django app sending a StreamingHttpResponse and handling that stream in JS

We don't need really db or models in this example so the code is under apps/stream/views and apps/stream/templates/stream/index.html

How to use it

• run pip install django
• run git clone [e-mail]:edilio/StreamingHttpResponse.git
• run python manage.py runserver
• browse http://localhost:8000

You can look for 'start new chunck:' so you can see that data comes in several chunks

Here is the view code.

We are using an iterator so you can replace it with your own long processing iterator

from django.http.response import StreamingHttpResponse
from django.shortcuts import render


def gen_message(msg):
    return 'data: {}'.format(msg)


def iterator():
    for i in range(10000):
        yield gen_message('iteration ' + str(i))


def test_stream(request):
    stream = iterator()
    response = StreamingHttpResponse(stream, status=200, content_type='text/event-stream')
    response['Cache-Control'] = 'no-cache'
    return response


def home(request):
    return render(request, 'stream/index.html')