Examples

Runnable projects live in examples/ (opens in a new tab) in the repository.

Live Room

A collaborative multiplayer room — live cursors, presence, flying reactions, and chat, over WebSockets, with no database. A Python agent joins the same room as the browsers, which is the point: a Konet channel is cross-runtime.

examples/live-room (opens in a new tab)

What you see	Konet feature
Other people's cursors moving live	Broadcast
"N online" counter	Presence
Emojis flying across the screen	Broadcast
Chat backlog when you join late	History replay (`konet:history`)
A 🤖 that moves, reacts and chats	Cross-runtime channel (JS + Python SDK)
The Studio link in the top bar	Studio

Run it

You need a running server and an anon_key:

konet start
konet keys generate      # prints the anon_key, also visible in Studio → Keys

💡

History replay is off by default. Start the server with KONET_HISTORY_LIMIT=50 if you want late joiners to receive the chat backlog — everything else works without it.

The web app (Node 18+):

cd examples/live-room/web
npm install              # pulls the local SDK via file:../../../sdk/js
npm run dev

Open the printed URL (usually http://localhost:5173), paste your anon_key, and enter the room. Open a second tab to watch cursors and presence sync.

The Python agent (3.10+, optional but the fun part):

cd examples/live-room/agent
python -m venv .venv && source .venv/bin/activate
pip install -e ../../../sdk/python
KONET_TOKEN=<your anon_key> python agent.py

Two things it demonstrates

Identity travels in the payload, not in presence. Presence metadata is fixed server-side (online_at, room, role), so each client carries its own name/color/id inside broadcast payloads.

Phoenix delivers a broadcast back to its sender. JSON broadcasts are echoed, so a client filters out its own messages by id. Binary frames are the exception — they are never echoed, see Binary Frames.

Push-to-talk

Binary frames and floor control have no standalone example yet. The protocol page carries working snippets for all four SDKs: Binary Frames & Floor Control.

Binary & Floor Control GitHub ↗