@ -8,7 +8,7 @@ module Sylvilagus::Ch02::HelloWorld
module ClassMethods
def with_hello_world_conn(&block)
factory = ConnectionFactory.new
factory.uri = 'amqp://guest:guest@localhost:5672'
factory.uri = ENV.fetch('SYLVILAGUS_AMQP_URI')
conn = factory.new_connection
channel = conn.create_channel
channel.exchange_declare('hello-exchange', 'direct', true)