How does falcon come into the picture here? Is this structured like a microservice between rest of airbnb and genesys, so that whatever needs to interact with genesys, interacts with this service instead and get a consistent latency?
The Airbnb service’s API is implemented over HTTPS. Falcon is built on top of Async. As its README says, “Each request is executed within a lightweight fiber and can block on up-stream requests without stalling the entire server process.” So whenever an API request comes into Airbnb’s service, Falcon creates a fiber to handle it in-process. If that fiber makes an API call to Genesys, control returns immediately to Falcon in the main fiber’s event loop to be able to handle more requests while the request fiber is awaiting Genesys’ response.
I don’t know the details of where this service sits in the service diagram. I think it may actually be something Genesys calls, and it in turn sometimes calls back to Genesys. No, the point of this service is not to get consistent latency on Genesys API calls.
