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Create multi-threading.py (example) #401

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50 changes: 50 additions & 0 deletions 50 examples/multi-threading.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,50 @@
# -*- coding: UTF-8 -*-

from fbchat import Client, logging
from fbchat.models import *
import threading
import sys

user = "<email>"
password = "<password>"


# Subclass fbchat.Client and override required methods
class MessagePrinter(Client):
def onMessage(self, author_id, message_object, thread_id, thread_type, **kwargs):
self.markAsDelivered(thread_id, message_object.uid)
self.markAsRead(thread_id)

print("\nIncoming message: {}".format(message_object.text))

# Creating some feedback on login since we will disable INFO logging
def onLoggedIn(self, email=None):
print("Login of {} successful.".format(email))


# Login and set logging level to WARNING to avoid some unessential output
client1 = Client(user, password, logging_level=logging.WARNING)
client2 = MessagePrinter(user, password, logging_level=logging.WARNING)


# Creating and starting a separate thread for receiving messages
t1 = threading.Thread(target=client2.listen, daemon=True)
t1.start()


# Loop checking for, and sending messages
try:
while True:
payload = input("Message: ")
if payload:
client1.send(
Message(text=payload),
thread_id=client1.uid,
thread_type=ThreadType.USER,
)

# Clean-up on exit
except KeyboardInterrupt:
client1.logout()
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I'd argue there's really not a big need to log out (it's not shown in the other examples, either)

client2.logout()
sys.exit(0)
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We should clean the client2 up properly instead. That can be done by setting Client.listening to False, and then wait for the thread to clean up afterwards, using Thread.join

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And then there'd be no need to make t1 daemonic

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