Websocket filter

juntiedt

I am trying to filter only the "temp" message out of the websocket application.
Unfortunately it does not work. please have a look at my little test program:

#!/usr/bin/python
# -*- coding: utf-8 -*-

import websocket
import json

from time import *
from datetime import *

def on_message(ws, message):
    obj = json.loads(message)
    print(str(obj))

def on_error(ws, error):
    now = datetime.now().strftime('%H:%M:%S')
    print (error + ": " + now)

def on_close(ws):
    now = datetime.now().strftime('%H:%M:%S')
    print ("WS-Connection closed: " + now)

#ws.send('{"cmd":"filter","devices":["ai","input"]}')
def ws_receive():
    global ws
    global url

    ws = websocket.WebSocketApp(url, on_message = on_message, on_error = on_error, on_close = on_close)
    ws.run_forever()

def ws_filter():
    global url
    ws = websocket.WebSocket()
    ws.connect(url)
    #ws.send('{"cmd":"filter","devices":["ai","input"]}')
    ws.send('{"cmd":"filter","devices":"temp"}') 
    ws.close()
	
#--------------------------------------------------------------------------------------
	
def main():
    global url
    
    host = "localhost"
    url = "ws://%s/ws" %(host)
    ws_filter()
    ws_receive()
	
if __name__ == "__main__":
    main()

tomas_hora

@juntiedt https://forum.unipi.technology/topic/518/setting-filter-corrupts-the-websocket-message/4

juntiedt

sorry, but does it mean, that there is a bug in evok?

I don't quite understand what I should do to filter temp devices.
What is wrong with my test program?
Please have another look.
thanks

tomas_hora

@juntiedt please try it with

ws.send('{"cmd":"filter","devices":"[temp]"}')

juntiedt

no success with the command you send :-(

tomas_hora

@juntiedt ok, then please wait until @tomas_knot gets back after Christmas or try to investigate the issue in the code of Evok

juntiedt

ok. In which directory should I look for the evok software?