MeshSocket (Python)
A lightweight WebSocket mesh networking library. Nodes connect to a central relay and communicate by broadcast, direct routing, and request/response — all over a simple JSON wire protocol.
Install
pip install meshsocket
Quickstart (client)
import asyncio
from meshsocket import MeshSocket
async def main():
sock = MeshSocket(url="ws://localhost:8765", name="my-node",
channel="demo", role="device", can_broadcast=True)
async def on_toggle(payload):
print("got", payload)
return {"ok": True} # a returned value is delivered as the reply
sock.on("toggle", on_toggle)
await sock.start() # connect + identify
await sock.wait_until_ready()
await sock.send("reading", {"temp_c": 21.4}) # broadcast to the channel
await asyncio.sleep(60)
await sock.stop()
asyncio.run(main())
Wire protocol
Every message is a JSON object:
{ "id": "uuid", "type": "message_type", "payload": "<any JSON or null>", "reply_to": "uuid or null" }
If a handler returns a value, the receiver sends a reply with reply_to set to the
original id, enabling request/response round-trips.
Compatibility
from meshsocket import MeshSocket is the supported import. The historical
from socketCore import MeshSocket still works (that module is published alongside the
package) so existing code keeps running while it migrates.
Other language clients
Swift (SPM, zero-dependency) and a planned JavaScript client live in the same repo: https://github.com/Mariner10/MeshSocket
1 maintainer
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