title: AWS Kinesis for Microservice Choreography
body: <p>I am trying to develop microservices for online shop using CQRS, DDD, and Event sourcing concept. I looked to AWS Kinesis as event stream. I think it would be good for choreographed microservices. I have 2 services, service for customer data and service for ordering system. I want to see total number of unpaid orders and the total amount of orders for each customer. So, I should send orderCreated event and orderPaid event to the service for customer data and recalculate the total unpaid orders and total amount of orders for related customer.</p>
  
  <p>Could I put the ordering system events to AWS Kinesis and listen it in command-side service for customer? Should I persist the events (orderCreated and orderPaid event) from AWS Kinesis to database in customer command-side service? Or is it ok to just update the customer query-side service only? Should I use AWS Lambda as event processor? Could you give me some best practices for this model?</p>
  
  <p>Thanks in advance.</p>