gimmel

UDP chat server

UDP packets that are received are decoded as JSON and then sent to every address that has previously successfully delivered a message.

howto

To run it:

1. Start the server in one terminal:

   stack run

2. Send UDP packets from a separate terminal. On Windows with Nmap's ncat (assuming IPv6):

   C:\Users\me>ncat -v -u -6 localhost 1337

   You can then type JSON messages like:

   {"msg":"hello","to":0}

3. Server operator can respond via the TUI - simply type your message in the input box and press Enter to send it to all connected peers.

test dependencies

• https://github.com/jpmens/jo
• https://en.wikipedia.org/wiki/Netcat

build dependencies

• https://docs.haskellstack.org/en/stable/README/

dev dependencies

• https://code.visualstudio.com/
• https://www.haskell.org/ghcup/
• https://github.com/haskell/vscode-haskell