Doom is a peer to peer video chat application created to allow multiple clients participate in a single video chat session. It is implemented using WEBRTC with a custom built django-channels signaling server.
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WebRTC is a set of javascript API's that can be used to send messages in-between browsers without the need for a middleman a.k.a a server.
To set the initial connection between the browsers a signaling server(one time message broker) is needed. For this purpose I have used Django and the channels library but other other options may be used including purpose built signaling services.
For the initial setup two sets of information are exchanged. First, a Session Discription Protocol(SDP), which is an object containing information about the session connection is sent by the browser offering the connection and the browser on the other hand will respond with it's own SDP answer. Secondly, both browsers exchange ICE candidates(a discription of their puplic IP address) to establish the connection.
git clone https://github.com/mamihretu/Doom.git
cd requirements
pip install -r base.txt # or local.txt if django_debug_toolbar is desired
cd ..
python manage.py runserver
# This instructions will take a few minutes to complete on their first run
docker-compose -f local.yml build
docker-compose -f local.yml up