title: Where to invoke SagaManager in CQRS even handling
body: <p>Am new to Microservices and CQRS event handling. I am trying to understand with one simple task. In this task I have three REST external services to handle one transaction/request(Service). The three services are </p>
  
  <p>step1: customer create.</p>
  
  <p>step2: create business for customer </p>
  
  <p>step3: Create Address for business.</p>
  
  <p>I want to implement SAGA for these events with InMemorySagaRepository and saga manager. </p>
  
  <p>Where exactly I have to initiate the SagaManager with repository, Is it in RestController or in CommandHandler ? </p>
  
  <p>Can you please help me in understanding sagas flow ? </p>
  
  <p>Thanks in Advance.</p>