Hands-On Software Engineering with Python

Artisan – updating product data

The relevant story for an Artisan's need to update Product data, from the list earlier, is:

• As an Artisan, I need to be able to update Product objects so that I can manage my Product offerings

The only real difference between Artisan update and create transactions is the operation associated with the outgoing message—we've already included the modified property in the results of to_message_data in Artisan Product objects:

product_message = DaemonMessage(
    'update', product_to_update.to_message_data(), signing_key
)
sender = RabbitMQSender()
sender.send_message(product_message)

Data alterations originating from an Artisan are, from a process standpoint, identical to data changes that originate from a Central ...