Enabling HTTP/2 Support in daphne with django

Install tls and http2. I see that you have everything installed. This is for clarification.

pip install -U 'Twisted[tls,http2]'

You can use your own privateKey and certKey for testing.

I will run commands in the /home/user/Documents/ssl/

openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout selfsigned.key -out selfsigned.crt

Run the application

daphne -e ssl:8000:privateKey=/home/user/Documents/ssl/selfsigned.key:certKey=/home/user/Documents/ssl/selfsigned.crt myapp.asgi:application

Output

user@debian:~/Documents/pythonWeb/myapp$ daphne -e ssl:8000:privateKey=/home/user/Documents/ssl/selfsigned.key:certKey=/home/user/Documents/ssl/selfsigned.crt myapp.asgi:application
    2022-02-04 18:49:12,726 INFO     Starting server at ssl:8000:privateKey=/home/user/Documents/ssl/selfsigned.key:certKey=/home/user/Documents/ssl/selfsigned.crt
    2022-02-04 18:49:12,726 INFO     HTTP/2 support enabled
    2022-02-04 18:49:12,726 INFO     Configuring endpoint ssl:8000:privateKey=/home/user/Documents/ssl/selfsigned.key:certKey=/home/user/Documents/ssl/selfsigned.crt
    2022-02-04 18:49:12,733 INFO     Listening on TCP address 0.0.0.0:8000
    2022-02-04 18:49:27,644 INFO     file_cache is only supported with oauth2client<4.0.0
    192.168.1.106:50128 - - [04/Feb/2022:18:49:32] "GET /stream_1/" 200 2510
    192.168.1.106:58251 - - [04/Feb/2022:18:49:32] "WSCONNECTING /ws/chat/stream_1/" - -
    connect

If you have ".pem" files from Let's Encrypt, paste them in place of the self-signed ones.