[Twisted-Python] Client Application service.Service

[Tim Hughes]

Much appreciated. I think that has got me over that hurdle :-)

Tim Hughes
mailto:thughes at thegoldfish.org


On 17 March 2016 at 02:21, Enrique Samson Jr. <enriquejr at gmail.com> wrote:

> Hi Tim,
>
> I think you need to keep a reference to an instance of your
> MyClientProtocol. Your example does not show how you actually connected
> your bot to a server but I assume it follows on the call to load_config on
> startService. One way to do this:
>
> class MyService(Service):
>   def __init__(self):
>     self._client = None
>
>   def clientConnected(self, prot):
>     # set reference to the protocol instance
>     self._client = prot
>
>   def startService():
>     self.config = load_config(config_file)
>
>     # connect bot to the server
>     f = MyClientFactory(self)
>     reactor.connectTCP(self.config.host, self.config.port, f)
>
>   def sendMessage(self, msg):
>     if self._client:
>       self._client.sendLine(msg)
>
> Client reference can be set from the protocol instance when connection has
> been made:
>
> class MyClientProtocol(protocol.Protocol):
>   #
>   def connectionMade(self):
>      self.factory.service.clientConnected(self)
>
> HTH,
> Enrique
>
> On Thu, Mar 17, 2016 at 8:24 AM, Tim Hughes <thughes at thegoldfish.org>
> wrote:
>
>> Woops : accidentally sent too early
>>
>> Hi all,
>>
>> I am looking into twisted for writing a client application (bot style)
>> and most of the examples I find are for server style applications.
>>
>> Looking at the finger example and
>> https://github.com/jdavisp3/twisted-intro/blob/master/twisted-server-3/fastpoetry.py
>> I am just wondering where is best to put my application logic.
>>
>> The protocol is basically a ascii line style application
>>
>> It feels to me that my Service should be the main business logic  and the
>> protocol should just be a simple send/receive something like this gist
>>
>>
>> https://gist.github.com/timhughes/f85da0c2d88ecb4ab5e3#file-twisted_application_client-py-L36
>>
>> I was then planning on writing web interface that interacted with the
>> service to send messages and display the response.
>>
>> My main issue here is how to send the message from the service via the
>> protocol. I cannot find any good examples of this and am beginning to think
>> I am conceptualising incorrectly or over thinking it. If anyone can point
>> me to some examples or point me in the right direction it would be awesome.
>> Hopefully my example makes sense.
>>
>> Cheers
>>
>> Tim
>>
>> Tim Hughes
>> mailto:thughes at thegoldfish.org
>>
>> Hi all,
>>
>> I am looking into twisted for writing a client application (bot style)
>> and most of the examples I find are for server style applications.
>>
>>
>>
>> Looking at the finger example and
>> https://github.com/jdavisp3/twisted-intro/blob/master/twisted-server-3/fastpoetry.py
>> I am just wondering where is best to put my application logic.
>>
>>
>> The protocol is basically a ascii line style application
>>
>>
>> It feels to me that my Service should be the core and the protocol should
>> just be something like
>>
>> def send_mesage(message):
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Tim Hughes
>> mailto:thughes at thegoldfish.org
>>
>>
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>> Twisted-Python at twistedmatrix.com
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>>
>>
>
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