I'm peeking at the following two services,

backend-api-subscriptions-websocket

and

backend-api-simple-subscriptions

, and feel like I understand what they are accomplishing from a high-level perspective. There's just a few things I'd like to ask: 1. When there is mention of a "queue", is this a RabbitMQ queue? An SQS queue? Something else? 2. Is the websocket connection with a client maintained/managed solely by

backend-api-subscriptions-websocket

? 3. What's the websocket library used? The Scala Play framework's websocket library?

1. RabbitMQ, although the implementation interface is as generic as possible to allow different queueing backends. 2. Yes. 3. Akka HTTP.

Thanks @dpetrick😄