title: How to share data between 2 different API calls?
body: <p>I am trying to create a framework in which I would receive requests over REST API and would wait for another service (which works over gRPC) to poll and execute the request. This is needed cause the "other" service is very deeply embedded into the network and I can't directly call it. At the same time, I would like to buffer the output of the other service back to the request origin. </p>
  
  <p>Any ideas how I can share this data between 2 different asynchronous API requests? Using the file system is a way... but I was thinking can I do it better via channels or something...?</p>