I found the API category, however, I don't know how to use it to control the switch via url.

Can someone help me with an example of this.

Hi everyone,

when i use Blynk 2.0 to control relay, i can use web brower to control switch, by https api.
link : https://docs.blynk.io/en/blynk.cloud/update-property

So, with ESP RainMaker, can i do that?

Thanks.