Can't show the RAM usage about python-aternos

[DarkCat09]

server.ram (and server._info['ram']) returns data from the _info dictionary which is requested just one time - when AternosServer object is created.
You can update it manually calling server.fetch(), but if you send this request in a loop for auto-updates, Aternos might suspend your account, so you should use websocket streams.

When your Minecraft server is online, there is a used RAM indicator on the server panel page (aternos.org/panel) that is updated in real-time by a script which receives data from a websocket server at aternos.org/hermes. But we have to subscript to the "used RAM (heap)" stream, more about streams.

Here's how to do it in python-aternos:

import asyncio
from python_aternos import Client, atwss

at = Client.from_credentials('username', 'password')
srv = at.list_servers()[0]
socket = srv.wss()  # AternosWss object

# handler for used RAM stream
@socket.wssreceiver(atwss.Streams.ram)
async def ram(used):
  # used is int
  print('Current RAM usage:', used, 'bytes')

# starting minecraft server
srv.start()

# connecting to websocket
# this function also sends streams subscriptions
asyncio.run(socket.connect())

That's all. Run the script and you'll get output like: Current RAM usage: 879372712 bytes