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#!/usr/bin/env python
import pika
import sys
connection = pika.BlockingConnection(pika.ConnectionParameters(
host='localhost'))
channel = connection.channel()
#Declares the entry exchange to be used by all producers to send messages. Could be external producers as well
channel.exchange_declare(exchange='data_gateway',
exchange_type='fanout',
durable=True,
auto_delete=False)
#Declares the processing exchange to be used.Routes messages to various queues. For internal use only
channel.exchange_declare(exchange='data_distributor',
exchange_type='topic',
durable=True,
auto_delete=False)
#Binds the external/producer facing exchange to the internal exchange
channel.exchange_bind(destination='data_distributor',source='data_gateway')
##Create Durable Queues binded to the data_distributor exchange
channel.queue_declare(queue='trade_db',durable=True)
channel.queue_declare(queue='trade_stream_service',durable=True)
channel.queue_declare(queue='ticker_db',durable=True)
channel.queue_declare(queue='ticker_stream_service',durable=True)
channel.queue_declare(queue='orderbook_db',durable=True)
channel.queue_declare(queue='orderbook_stream_service',durable=True)
#Bind queues to exchanges and correct routing key. Allows for messages to be saved when no consumer is present
channel.queue_bind(queue='orderbook_db',exchange='data_distributor',routing_key='*.*.orderbook')
channel.queue_bind(queue='orderbook_stream_service',exchange='data_distributor',routing_key='*.*.orderbook')
channel.queue_bind(queue='ticker_db',exchange='data_distributor',routing_key='*.*.ticker')
channel.queue_bind(queue='ticker_stream_service',exchange='data_distributor',routing_key='*.*.ticker')
channel.queue_bind(queue='trade_db',exchange='data_distributor',routing_key='*.*.trade')
channel.queue_bind(queue='trade_stream_service',exchange='data_distributor',routing_key='*.*.trade')
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