title: Nats which pattern to use
body: <p>I asked a question in:
  <a href="https://stackoverflow.com/questions/43378165/microservice-architecture-dependency/43379577#43379577">Microservice Architecture dependency</a> which pattern to use when using a clustered Microservice architecure.</p>
  
  <p>I recieved answer that point to point should work but when reading:
  <a href="https://nats.io/documentation/concepts/nats-req-rep/" rel="nofollow noreferrer">https://nats.io/documentation/concepts/nats-req-rep/</a>
  It feels like all subscribers recieves event (and because of that handles it) but there will just be one subscriber that responses. This will not work when putting an order event that will trigger an update-inventory-event that Inventory microservices subscribes to (as in example in link) i.e it wont work in a clustered env due to inventory will be updated the same amount of times as the amount of microservice instances.</p>
  
  <p>How can I solve this scenario using Nats?</p>
  
  <p>Thanks in advance! </p>