I am using Python to retrieve data from Mongo database to analyze it. So I am changing data using meteor app and client python to retrieve it in a real time. This is my code:
from MeteorClient import MeteorClient
def call_back_meth():
print("subscribed")
client = MeteorClient('ws://localhost:3000/websocket')
client.connect()
client.subscribe('tasks', [], call_back_meth)
a=client.find('tasks')
print(a)
when I run this script, it only show me current data in 'a' and console will close,
I want to let the console stay open and print data in case of change. I have used While True to let script running and see changes but I guess it's not a good solution. Is there any another optimized solution?
To get realtime feedback you need to subscribe to changes,and then monitor those changes. Here is an example of watching tasks:
from MeteorClient import MeteorClient
def call_back_added(collection, id, fields):
print('* ADDED {} {}'.format(collection, id))
for key, value in fields.items():
print(' - FIELD {} {}'.format(key, value))
# query the data each time something has been added to
# a collection to see the data `grow`
all_lists = client.find('lists', selector={})
print('Lists: {}'.format(all_lists))
print('Num lists: {}'.format(len(all_lists)))
client = MeteorClient('ws://localhost:3000/websocket')
client.on('added', call_back_added)
client.connect()
client.subscribe('tasks')
# (sort of) hacky way to keep the client alive
# ctrl + c to kill the script
while True:
try:
time.sleep(1)
except KeyboardInterrupt:
break
client.unsubscribe('tasks')