Error while restoring session

[MhankBarBar]

Sorry in advance, I don't really understand python, but I'm trying to save the session and then restore it again

My code is like this

from os import path
from wamd.common import AuthState

@inlineCallbacks
def onConnect(connection):
    print("\nConnection 1: %r" % (connection, ))
    # check if session path if exists
    # and restore the session
    if path.exists("session.json"):
        session = eval(open("session.json").read())
        connection.authState = AuthState.fromJson(session)
    else:
        connection.on("qr", handleQr)

    # the new connection after successfull authentication
    # will be different than provided the first connection
    # since the connection will automatically be restarted
    # after authentication.
    connection = yield connection.authenticate()

    # check if session file not in path
    # and save session to file
    if not path.exists("session.json"):
        open("session.json","w").write(str(connection.authState.toJson()))
    connection.on("inbox", inboxReceiver)
    print("\nConnection 2: %r" % (connection, ))

but it fails and can't restore session

[serenity-77]

Is there any exception or failure printed on the screen?

[MhankBarBar]

Sorry, I've been able to save and then restore it again, this issued solve when I store session in MultiDeviceWhatsAppClientProtocol

But showing error like this

[serenity-77]

sepertinya masalah pada saat decrypt pesan masuk
sedang di lakukan perbaikan.

[MhankBarBar]

Gimana cara handle event new message setelah restore session?

[a5r0n]

u need to restore the auth_state before u run the reactor. (e.g in the factory function)

something like:

def protocol_factory():
    # Do any initialization here, such as reading session file
    # to be supplied to the protocol/connection.
    if path.exists("auth.json"):
        with open("auth.json") as f:
            print("Loading auth state from auth.json")
            auth_state = AuthState.fromJson(json.loads(f.read()))
    else:
        auth_state = AuthState()

    return MultiDeviceWhatsAppClient(authState=auth_state)

[MhankBarBar]

u need to restore the auth_state before u run the reactor. (e.g in the factory function)

something like:

def protocol_factory():
    # Do any initialization here, such as reading session file
    # to be supplied to the protocol/connection.
    if path.exists("auth.json"):
        with open("auth.json") as f:
            print("Loading auth state from auth.json")
            auth_state = AuthState.fromJson(json.loads(f.read()))
    else:
        auth_state = AuthState()

    return MultiDeviceWhatsAppClient(authState=auth_state)

I've been trying this for a long time, but still can't handle events