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python-tornado chatdemo on heroku


python-tornado chatdemo on heroku

By : Oğuz Han Kurnaz
Date : November 21 2020, 07:38 AM
I hope this helps you . It doesn't work because you're accessing it using https:// but you're trying to load jquery using http://. If you check out your browser's error console you'll see the error that's preventing jquery library to load. This is known as Mixed Content.
Noltice that it works if you go to http://tornadochat2.herokuapp.com/ (not using https).
code :
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js" type="text/javascript"></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js" type="text/javascript"></script>


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Python-Tornado on Heroku

Python-Tornado on Heroku


By : Parag
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Check your procfile and requirements.txt. If anyone is looking, here is one working example of same official chat demo deployed on Heroku
How do I deploy tornado chatdemo.py (facebook) app on Heroku

How do I deploy tornado chatdemo.py (facebook) app on Heroku


By : ktummonds
Date : March 29 2020, 07:55 AM
around this issue Have you checked out these resources?
How I Got a Tornado App Running on Heroku in 10 Seconds Tornado Heroku helpers
How to iterate through dictionary passed from Python/Tornado handler to Tornado's template?

How to iterate through dictionary passed from Python/Tornado handler to Tornado's template?


By : user6351616
Date : March 29 2020, 07:55 AM
To fix this issue How to iterate through dictionary passed from Python/Tornado handler to Tornado's template ?
code :
>>> from tornado import template
>>> t = template.Template('''
... <div id="statistics-table">
...     {% for key, value in statistics.items() %}
...     {{key}} : {{value['number']}}
...     {% end %}
... </div>
... ''')
>>> statistics = { 1 : {'number' : 2},  2 : {'number' : 8}}
>>> print(t.generate(statistics=statistics))

<div id="statistics-table">

    1 : 2

    2 : 8

</div>
<div id="statistics-table">
    {% for key in statistics %}
    {{key}} : {{statistics[key]['number']}}
    {% end %}
</div>
Tornado Chatdemo to work with Coroutines

Tornado Chatdemo to work with Coroutines


By : Кирилл Судариков
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I am trying to make coroutine version of tornado chat demo and i am having trouble understanding it. As i am new to coroutine style of programming and i really hate Callbacks since javascript. , Here is a simple example, Hope it helps:
code :
class MessageUpdatesHandler(BaseHandler):
    @tornado.web.authenticated
    @gen.coroutine
    def post(self):
        cursor = self.get_argument("cursor", None)
        messages = yield gen.Task(global_message_buffer.wait_for_messages, cursor=cursor)

        if self.request.connection.stream.closed():
            return

        self.finish(dict(messages=messages))
python - Multiple tornado clients simultaneously connecting to tornado server

python - Multiple tornado clients simultaneously connecting to tornado server


By : Ann Bravo
Date : March 29 2020, 07:55 AM
seems to work fine for your answer @xyres! I was able to get it to work by starting a thread in the on_message method that handed processing and the while True to a function outside the WSHandler class. I believe this allowed for the method to run outside of Tornado's IOLoop, unblocking new connections.
This is how my server looks now:
code :
def on_message(self, message):
    print 'message received %s' % message
    sendThread = threading.Thread(target=send, args=(self, message))
    sendThread.start()

def send(client, msg):
    # process received msg
    # pass it to a thread which updates a variable
    while True:
        output = updated_variable
        client.write_message(output)
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