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Practical Microservices by Umesh Ram Sharma

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Shipping/tracking and communication service

After the payment service, there are two microservices that start their work. One is the communicator service, which actually shoots an email or SMS to the user seeking an order confirmation, and then, once the order has been confirmed, another email with their order details and an estimated date of arrival. The shipping service is responsible for initiating the shipping process. The same microservice should be responsible for tracking the shipped product.

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