In our current version of the API, each HTTP request is blocking, as happened with Django and Flask. Thus, whenever the Tornado HTTP server receives an HTTP request, it doesn't start working on any other HTTP request in the incoming queue until the server sends the response for the first HTTP request it received. The methods we coded in the request handlers are working with a synchronous execution and they don't take advantage of the non-blocking features included in Tornado when combined with asynchronous executions.
In order to set the brightness level for both the blue and white LEDs, we have to make two HTTP PATCH requests. We will make them to understand how our current version of the API processes two incoming requests.
Open two Cygwin terminals in Windows or two Terminals in macOS or Linux, and write the following command in the first one. We will compose and send an HTTP request to set the brightness level for the blue LED to 255...
