Orchestrating microservices

Question

What is the standard pattern of orchestrating microservices?

If a microservice only knows about its own domain, but there is a flow of data that requires that multip

Answer 1

If the State needs to be managed then the Event Sourcing with CQRS is the ideal way of communication. Else, an Asynchronous messaging system (AMQP) can be used for inter microservice communication.

From your question, it is clear that the ES with CQRS should be the right mix. If using java, take a look at Axon framework. Or build a custom solution using Kafka or RabbitMQ.