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Add module docstring to serialization.py

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Kristóf Tóth 2018-04-13 20:20:00 +02:00
parent 9eb6717972
commit 499b575adf
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lib/tfw/networking/serialization.py
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@ -1,5 +1,25 @@
# Copyright (C) 2018 Avatao.com Innovative Learning Kft. # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
# All Rights Reserved. See LICENSE file for details. # All Rights Reserved. See LICENSE file for details.
"""
TFW JSON message format
message:
{
"key": string, # addressing
"data": {...}, # payload
"trigger": string # FSM trigger
}
ZeroMQ's sub-pub sockets use enveloped messages
(http://zguide.zeromq.org/page:all#Pub-Sub-Message-Envelopes)
and TFW also uses them internally. This means that on ZMQ sockets
we always send the messages key separatley and then the actual
message (which contains the key as well) like so:
socket.send_multipart([message['key'], message])
The purpose of this module is abstracting away this low level behaviour.
"""
import json import json