title: Integrating SignalR for microservice with API Gateway
body: <p>I'm designing a microservice system based on .Net core. The architecture system will look like as the following picture.</p>
  
  <p><a href="https://i.stack.imgur.com/eIee4.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eIee4.png" alt="enter image description here"></a></p>
  
  <p>The problem is: There is a requirement which have to integrate SignalR (real-time) for notification
  I've read about SignalR on Microsoft's website. But I consider that where should I put the Hub (API Gateway?, microservice? ...)? How can I apply signalR for this system.</p>
  
  <p>Thanks.</p>