I´m currently working on a project where I have some clients (ESP32) which should communicate over MQTT with my broker. It should be also possible to change some parameters with an app. The easiest way would be to make an node.js server which gets the parameter from the app with an HTTP Post and then send the data parameters as mqtt client to the right ESP.
Is this the right approach for my project? Can one client even handle the traffic if there a 100 devices changing and requesting data from my broker at the same time? Or is there a more simplere solution?
E: Just do be sure you know what i want to do